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Relevant bibliographies by topics / Multislice Computed Tomography

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Academic literature on the topic 'Multislice Computed Tomography'

Author: Grafiati

Published: 4 June 2021

Last updated: 21 February 2023

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Journal articles on the topic "Multislice Computed Tomography"

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Sarnadsky, Vladimir Nikolayevich, Sergey Yakovlevich Vilberger, Alla Vladimirovna Shevchenko, and Tatyana Nikiforovna Sadovaya. "ACCURACY STUDY OF SURFACE SHAPE RECONSTRUCTION OF A HUMAN BODY MODEL BY COMPUTER OPTICAL TOPOGRAPHY." Hirurgiâ pozvonočnika, no. 2 (June 22, 2006): 062–67. http://dx.doi.org/10.14531/ss2006.2.62-67.

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Objective. To study the accuracy of 3D surface reconstruction of human body model by computer optical topography as compared to a multislice computed tomography. Material and Methods. A model of a trunk dorsal surface of a patient with III Grade right side scoliosis in the thoracic spine was used for study. Computer optical topography was performed with a serial installation TODP, METOS Ltd., and multislice computed tomography – with a helical tomograph Siemens Somatom Sensation 4. Results. Comparison of obtained magnitudes of clinical parameters, which are the most significant for diagnostics of spine deformity, revealed that difference in their meanings did not exceed ±0.5 mm for metrical and ±0.5° for angular parameters. Conclusion. Computer optical topography ensures the accuracy of 3D surface reconstruction of human body model, which is comparable to that of a multislice computed tomography, and provides noninvasive and reliable assessment of important clinical parameters of a human body dorsal surface.

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de Feyter, PJ, N. Mollet, and Koen Nieman. "Multislice Computed Tomography Coronary Angiography." Interventional Cardiology Review 3, no. 1 (2008): 21. http://dx.doi.org/10.15420/icr.2008.3.1.21.

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Jankauskas, Antanas, Jurgita Zaveckienė, Ramūnas Unikas, Rimvydas Šlapikas, Algidas Basevičius, and Remigijus Žaliūnas. "Diagnostic value of multislice computed tomography coronary angiography in patients with left bundle branch block." Medicina 45, no. 4 (April 8, 2009): 255. http://dx.doi.org/10.3390/medicina45040033.

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Objective. The aim of present study was to evaluate the diagnostic value of multislice computed tomography coronary angiography in patients with left bundle branch block. Materials and methods. Twenty-four patients who underwent both multislice computed tomography coronary angiography and invasive coronary angiography were enrolled in the study. Findings of these imaging modalities were compared in order to determine the sensitivity, specificity, positive predictive value, and negative predictive value of multislice computed tomography angiography in identifying hemodinamically significant stenoses (≥50%). All segments ≥2 mm in diameter were visually assessed independently from their degree of calcification and image quality. Results. In total, 328 segments were analyzed. The Spearman correlation coefficient between multislice computed tomography and invasive coronary angiography was 0.76 (P<0.0001). On a per-segment basis, sensitivity, specificity, positive predictive value, and negative predictive value of multislice computed tomography angiography were 75%, 97.7%, 72%, and 98%, respectively; on a per-vessel basis, these values were 77.8%, 92.3%, 70%, and 94.7%, respectively; on a per-patient basis – 81.8%, 84.6%, 81.8%, and 84.6%, respectively.Conclusions. Multislice computed tomography coronary angiography provides a high diagnostic accuracy in detecting significant coronary artery stenoses in patients with left bundle branch block.

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Galyavich, A. S., and A. Yu Rafikov. "Evaluation of the right ventricular ejection fraction according to multislice computed tomography in patients with pulmonary embolism." Kazan medical journal 96, no. 6 (December 15, 2015): 901–5. http://dx.doi.org/10.17750/kmj2015-901.

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Aim. Evaluation of the global systolic function of the right ventricle according to multislice computed tomography in patients with pulmonary embolism. Methods. 37 people aged 31 to 75 years (20 women and 17 men, mean age 55±12 years) were examined. The study group included 15 patients without clinical or instrumental signs of congenital heart disease and myocardial infarction of the left and right ventricles, with signs of pulmonary embolism according to multislice computed tomography. The control group included 22 patients. Tomographic analysis of end-diastolic volume, ejection fraction of the left and right ventricles was performed during noninvasive multislice computed tomography - coronary angiography, angiopulmonography. The study was conducted on a 64-helical computed tomography Aquillon 64 (Toshiba, Japan). Results. Analyzing group medians in patients with pulmonary embolism there was a decrease of the right ventricular ejection fraction and end-diastolic volume of the left ventricle (р

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Hundt, Walter, Friedemann Rust, Axel St??bler, Heiko Wolff, Christoph Suess, and Maximillian Reiser. "Dose Reduction in Multislice Computed Tomography." Journal of Computer Assisted Tomography 29, no. 1 (January 2005): 140–47. http://dx.doi.org/10.1097/01.rct.0000151188.72850.0d.

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de Roos, A., L. J. M. Kroft, J. J. Bax, H. J. Lamb, and J. Geleijns. "Cardiac applications of multislice computed tomography." British Journal of Radiology 79, no. 937 (January 2006): 9–16. http://dx.doi.org/10.1259/bjr/67045628.

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Feuchtner, Gudrun M., Paul Stolzmann, Wolfgang Dichtl, Thomas Schertler, Johannes Bonatti, Hans Scheffel, Silvana Mueller, et al. "Multislice Computed Tomography in Infective Endocarditis." Journal of the American College of Cardiology 53, no. 5 (February 2009): 436–44. http://dx.doi.org/10.1016/j.jacc.2008.01.077.

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Ramón Balaguer, José, Aurelio Quesada Dorador, and Jordi Estornell. "Pulmonary Thromboembolism and Multislice Computed Tomography." Revista Española de Cardiología (English Edition) 57, no. 11 (November 2004): 1115–16. http://dx.doi.org/10.1016/s1885-5857(06)60196-5.

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Khan, Aliya, Abid Ali Sahito, Mahreen Shaikh, Humera Jabeen, Humaira Ashraf, and Surwaich Ali Channa. "Diagnostic Accuracy of Multislice Contrast CT scan in Detection of Squamous cell Carcinoma of Oral cavity, in clinically suspected Patients." Pakistan Journal of Medical and Health Sciences 15, no. 8 (August 30, 2021): 2500–2501. http://dx.doi.org/10.53350/pjmhs211582500.

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Objective: To evaluate the diagnostic accuracy of multislice computed tomography (CT) in detection of squamous cell carcinoma (SCC) of oral cavity in clinically suspected patients taking histopathology as gold standard. Material and Methods: This cross-sectional study has been conducted at Radiology department of Civil Hospital Karachi from 8th September 2018 to March 2019. All the cases having suspected oral squamous cell carcinoma and either of gender were included. Patients underwent computed tomography by using multislice scanner. Then patients undergone biopsy sampling and patients were labeled as positive or negative for squamous cell carcinoma of oral cavity on MDCT and histopathology. Sensitivity, specificity, and diagnostic accuracy of multislice CT for squamous cell carcinoma of oral cavity were measured taking histopathology as gold standard. Results: Total 168 cases were studied and out of them males were 76.8% and females were 23.2%. Mean gutka addiction history was 11.52±5.21 years. Mean lesion size on CT scan was 2.44±1.43 cm. In our study, 35.1% patients were diagnosed positive by multislice computed tomography and 43.5% through histopathology. Sensitivity, Specificity, PPV, NPV and accuracy were 86.4%, 79.8%, 69.9%, 91.6%, and 82.1% respectively. Conclusion: Multislice CT observed to be the effective diagnostic tool for the detection of SCC of oral cavity. Keywords: Multislice Computed Tomography, cancer, Oral Cavity

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Oesterhelweg, Lars, Stephan A. Bolliger, Michael J. Thali, and Steffen Ross. "Virtopsy: Postmortem Imaging of Laryngeal Foreign Bodies." Archives of Pathology & Laboratory Medicine 133, no. 5 (May 1, 2009): 806–10. http://dx.doi.org/10.5858/133.5.806.

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Abstract Context.—Death from corpora aliena in the larynx is a well-known entity in forensic pathology. The correct diagnosis of this cause of death is difficult without an autopsy, and misdiagnoses by external examination alone are common. Objective.—To determine the postmortem usefulness of modern imaging techniques in the diagnosis of foreign bodies in the larynx, multislice computed tomography, magnetic resonance imaging, and postmortem full-body computed tomography–angiography were performed. Design.—Three decedents with a suspected foreign body in the larynx underwent the 3 different imaging techniques before medicolegal autopsy. Results.—Multislice computed tomography has a high diagnostic value in the noninvasive localization of a foreign body and abnormalities in the larynx. The differentiation between neoplasm or soft foreign bodies (eg, food) is possible, but difficult, by unenhanced multislice computed tomography. By magnetic resonance imaging, the discrimination of the soft tissue structures and soft foreign bodies is much easier. In addition to the postmortem multislice computed tomography, the combination with postmortem angiography will increase the diagnostic value. Conclusions.—Postmortem, cross-sectional imaging methods are highly valuable procedures for the noninvasive detection of corpora aliena in the larynx.

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Dissertations / Theses on the topic "Multislice Computed Tomography"

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Morgan-Hughes, Gareth. "The cardiac applications of multislice computed tomography." Thesis, University of Exeter, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398366.

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Coles, Duncan Robert. "Detection of coronary atherosclerotic disease using multislice computed tomography." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520319.

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Yamanaka, Kazuo. "Multislice computed tomography accurately quantifies left atrial size and function after the MAZE procedure." Kyoto University, 2006. http://hdl.handle.net/2433/135885.

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Groves, Ashley McAllister. "16-detector multislice computed tomography and skeletal scintigraphy in the diagnosis of bone disease : a comparative study." Thesis, University of Newcastle upon Tyne, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413261.

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Pesolillo, Daniele. "Image quality and dose evaluation of filtered back projection versus iterative reconstruction algorithm in multislice computed tomography." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8315/.

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Il presente lavoro di tesi è stato svolto presso il servizio di Fisica Sanitaria del Policlinico Sant'Orsola-Malpighi di Bologna. Lo studio si è concentrato sul confronto tra le tecniche di ricostruzione standard (Filtered Back Projection, FBP) e quelle iterative in Tomografia Computerizzata. Il lavoro è stato diviso in due parti: nella prima è stata analizzata la qualità delle immagini acquisite con una CT multislice (iCT 128, sistema Philips) utilizzando sia l'algoritmo FBP sia quello iterativo (nel nostro caso iDose4). Per valutare la qualità delle immagini sono stati analizzati i seguenti parametri: il Noise Power Spectrum (NPS), la Modulation Transfer Function (MTF) e il rapporto contrasto-rumore (CNR). Le prime due grandezze sono state studiate effettuando misure su un fantoccio fornito dalla ditta costruttrice, che simulava la parte body e la parte head, con due cilindri di 32 e 20 cm rispettivamente. Le misure confermano la riduzione del rumore ma in maniera differente per i diversi filtri di convoluzione utilizzati. Lo studio dell'MTF invece ha rivelato che l'utilizzo delle tecniche standard e iterative non cambia la risoluzione spaziale; infatti gli andamenti ottenuti sono perfettamente identici (a parte le differenze intrinseche nei filtri di convoluzione), a differenza di quanto dichiarato dalla ditta. Per l'analisi del CNR sono stati utilizzati due fantocci; il primo, chiamato Catphan 600 è il fantoccio utilizzato per caratterizzare i sistemi CT. Il secondo, chiamato Cirs 061 ha al suo interno degli inserti che simulano la presenza di lesioni con densità tipiche del distretto addominale. Lo studio effettuato ha evidenziato che, per entrambi i fantocci, il rapporto contrasto-rumore aumenta se si utilizza la tecnica di ricostruzione iterativa. La seconda parte del lavoro di tesi è stata quella di effettuare una valutazione della riduzione della dose prendendo in considerazione diversi protocolli utilizzati nella pratica clinica, si sono analizzati un alto numero di esami e si sono calcolati i valori medi di CTDI e DLP su un campione di esame con FBP e con iDose4. I risultati mostrano che i valori ricavati con l'utilizzo dell'algoritmo iterativo sono al di sotto dei valori DLR nazionali di riferimento e di quelli che non usano i sistemi iterativi.

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Utumi, Estevam Rubens. "Avaliação de lesões ósseas simuladas na cabeça da mandíbula pela tomografia computadorizada multislice." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/23/23147/tde-21012009-150717/.

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A região da articulação temporomandibular (ATM) possui uma limitação na obtenção de imagens pela radiografia convencional. A tomografia computadorizada é o exame mais indicado pela alta especificidade e sensibilidade, para o diagnóstico, planejamento cirúrgico e tratamento das lesões ósseas. O objetivo deste trabalho consiste na avaliação de lesões ósseas simuladas na cabeça da mandíbula pela tomografia computadorizada. Foram utilizadas 15 mandíbulas secas, onde foram criadas lesões esféricas, com o auxílio de brocas esféricas cirúrgicas de uso odontológico com tamanhos variados (nº 1, 3, 6) na cabeça da mandíbula. As lesões foram avaliadas por meio da TC multislice (64 canais), por 2 examinadores independentemente, em 02 ocasiões distintas, utilizando 2 protocolos: axial, coronal, sagital e imagens parassagitais para visualização dos pólos (anterior, lateral, posterior, medial, superior). Posteriormente, as imagens foram comparadas com as lesões presentes na mandíbula seca (Padrão Ouro) avaliando o grau de especificidade e sensibilidade da TC. Estatística de Kappa, teste de validade e teste do Qui-Quadrado foram utilizados como métodos estatísticos. Como resultados observaram a vantagem da associação dos cortes axial, coronal e sagital com cortes parassagitais para detecção de lesões na região de cabeça de mandíbula. Para determinada localização de lesões nos pólos, os tipos de protocolos não apresentaram diferenças significativas em relação as porcentagens de concordância. Os protocolos para visualização da região de cabeça da mandíbula foram estabelecidos no intuito de melhorar a visualização da presença de alterações de cada pólo da cabeça da mandíbula. No que se refere aos pólos avaliados pelos cortes parassagitais houve melhor visualização no pólo anterior e posterior no sentido látero medial. Nos pólos superior, medial e lateral foram mais bem visualizados no sentido ântero-posterior.
There are limitations for image acquisition using conventional radiography of the temporomandibular joint (ATM) region. Computerized tomography (CT) scan is a better option due to its higher specificity and sensitivity for diagnosis, surgical planning and treatment of bone injuries. The purpose of this study is to evaluate simulated bone injuries of the head of the jaw by CT scan. Spherical lesions were created in the head of 15 dry jaws with dentist drills (sizes 1, 3, and 6). Lesions were evaluated using the CT multislice (64 bits) by 2 examiners independently, in 2 different occasions, using 2 protocols: axial, coronal, and sagittal and parasagittal images for head of the mandible visualization (anterior, lateral, posterior, medial, and superior). Images were compared with the dry jaw (gold standard) regarding the presence of injuries, evaluating the degree of specificity and sensitivity of the CT. Kappa statistics, validity tests, and chi-square tests were used as statistical methods. As a result, we observed the advantage of the association of axial, coronal and sagittal slices with parasagittal slices for detection of lesions in the region of mandibles head. For some lesions localized in polar regions, protocols did not show statistically significant differences regarding the proportion of agreement. Protocols for visualization were created to improve the visualization of lesions in each polar region of the jaws head. Regarding parassagittal slices, there was better lateromedial visualization of the anterior and posterior poles and better anteroposterior visualization of superior, medial, and lateral poles.

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Littau, Odin [Verfasser], and Christoph [Akademischer Betreuer] Weber. "High Resolution Multislice Computed Tomography in the early phase after Stem Cell Transplantation / Odin Littau. Betreuer: Christoph Weber." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2011. http://d-nb.info/1020930551/34.

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Lopes, Patrícia de Medeiros Loureiro. ""Validação das medidas lineares crânio-faciais por meio da tomografia computadorizada multislice em 3D"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/23/23139/tde-28082006-184029/.

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O objetivo deste trabalho foi avaliar a precisão e acurácia (validade) de medidas ósseas lineares crânio-faciais por meio de reconstruções em terceira dimensão (3D), pela técnica de volume, a partir da tomografia computadorizada (TC) multislice. O material da pesquisa consistiu de 10 (dez) crânios secos, os quais foram submetidos à tomografia computadorizada multislice 16 cortes com 0.5 mm de espessura por 0.3 mm de intervalo de reconstrução. Os dados obtidos foram enviados para uma estação de trabalho independente com o programa Vitrea®. Pontos crânio-faciais foram localizados e medidas lineares foram realizadas por 02 examinadores, previamente treinados, medindo cada um duas vezes, independentemente em 3D. As medidas físicas foram obtidas por um terceiro examinador utilizando um paquímetro digital. A análise dos dados foi feita mediante um estudo comparativo entre as medidas inter- e intra-examinadores, em 3D-TC, e entre estas e as medidas físicas obtidas diretamente nos crânios, utilizando ANOVA (análise de variância). Não foram encontradas diferenças estatisticamente significantes entre as medidas inter e intra-examinadores, nem entre as medidas físicas em 3D, com p>0,6. Em conclusão, todas as medidas lineares crânio-faciais foram consideradas acuradas e precisas utilizando a técnica de volume em 3D por meio da TC multislice.
This research objectives the assessment of the precision and accuracy (validity) of the linear craniofacial measurements in three-dimensional reconstructed volume rendered images (3D) using a multislice computed tomography (CT). The study population consisted of 10 (ten) dry skulls, previously selected, without distinction of ethnic group and sex, which were submitted to a multislice CT 16 slices using 0.5 mm of slice thickness and 0.3 mm of interval of reconstruction. Subsequently the data were sent to an independent workstation with Vitrea software. Conventional craniofacial points were localized and linear measurements were obtained by 02 examiners, previously calibrated, twice each, independently, in 3D images. The physical measurements were obtained by a third examiner using a digital caliper. The data analysis was carried out, regarding to inter and intra examiner, in 3D-CT, and between image and physical measurements from dry skulls, using ANOVA (analysis of variance). There were also no statistically significant differences between imaging and physical measurements with p>0.6 for all measurements. In conclusion, all the linear craniofacial measurements were considered accurate and precise using a 3D volume rendering technique by multislice CT.

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Fernandes, Carmen Lee. "The paranasal air sinuses in the human : an anatomical assessment using helical multislice computed tomography : applications to human forensic identification." Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/31792.

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Introduction: Forensic pathologists may be asked to identify the race group or sex of a cranium of unknown origin. Race group refers to geographic ancestry and sex is biological sex. An analysis of the volumes and measurements of human paranasal sinuses, namely maxillary, ethmoid, sphenoid and frontal sinuses, in dried crania of different race and sex groups (European and Zulu male and female) was undertaken to search for a new improved approach of classifying crania according to race and sex. This anatomical assessment of the human paranasal sinuses identifies race and sex variations in the paranasal sinuses. Variations in paranasal sinus volumes and measurements may mean a variation in anatomical landmarks. The best combination of sinus measurements was selected to classify a cranium according to race group and sex making this research relevant to the field of forensic medicine. Objectives: To compare the paranasal sinus volumes and measurements of dried crania of European and Zulu descent with respect to race group and sex and to develop a method of classifying a cranium according to race group or sex by using dimensions of the paranasal sinuses. Methodology: Documented, cadaver derived, dried crania were obtained from the Raymond A. Dart Collection of Human Skeletons, housed at the School of Anatomical Sciences at the University of the Witwatersrand, Johannesburg, South Africa. Age, race and sex were recorded for each cranium within the collection and hence within the study sample. 26 Adult European crania; 13 male, 13 female. Age range 19-75yrs (mean 49.42yrs) and 27 Adult Zulu crania: 13 male, 14 female. Age range 16-90yrs (mean 40.16yrs) was selected for this study. An additional cranium of unknown origin was also analysed in the research. European crania were from descendants of Europe living in South Africa and Zulu crania were obtained from Zulu patients who were part of the Zulu tribe of South Africa. 53 crania with intact paranasal sinuses (106 individual sinuses for each of the maxillary, ethmoid, sphenoid and frontal sinuses) were studied. In addition, 2 sinuses from the unknown cranium were analysed. The dried crania of European and Zulu origin were assessed by helical, multislice computed tomography using 1mm coronal slices. The area for each slice was obtained by tracing the outline of each slice. A volume was calculated by the CT machine that totaled the slices for each sinus. Measurements of width, length and height were also assessed, as were other craniometrical measurements. Statistical analysis was performed for all European and Zulu male and female sinuses in respect of volumes and measurements. Further statistical analysis searched for classification patterns. In addition, forty patients' scans from the European and Zulu male and female groups in Southern Africa were also assessed. CT scans of 10 adult European males, 10 adult European females, 10 adult Zulu males and 10 adult Zulu females provided 40 pairs of maxillary, ethmoid, sphenoid and frontal sinuses for analysis. Europeans were South African persons of European descent and Zulus were from the Zulu tribe of Kwa Zulu Natal in South Africa. Results: The aim of identifying race and sex differences in this anatomical region is achieved. Significant race and sex variations were found in the European and Zulu, male and female groups when analysing the volumes and measurements of the paranasal sinuses. The very best combinations of classifiable measurements were described and are being put forward as a new tool in human forensic identification studies. The significant sex classification figure of 91.8% by combining ethmoid, sphenoid and frontal paranasal sinus measurements, is a new discovery for using a combination of the sinuses. The significant race classification figure of 95.9 % is an excellent classification figure for classification according to race. This was done using the measurements of maxillary, ethmoid and total distance across the sinuses. All this was achieved by using the measurements of the paranasal sinuses in a European and Zulu, male and female population. Conclusion: Forensic race and sex identification of crania is now possible using a combination of measurements from the paranasal sinuses. A new approach to classifying a cranium into an race or sex group is revealed by way of using a new combination of paranasal sinus measurements. This discovery is of importance to forensic medicine in the realm of identification as it provides a measurable way of assigning race or sex to a cranium within a particular region. Other studies based on other race groups may add further value. What is clear is that the paranasal sinuses are now of established value when assessing race or sex group of a unknown cranium. A new tool for forensic race and sex identification is provided to the armamentarium of the forensic pathologist and associated disciplines.

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Accorsi, Mauricio Adriano de Oliverio. "Comparação de grandezas cefalométricas obtidas por meio de telerradiografias e tomografias computadorizadas multislice em crânios secos humanos." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/23/23133/tde-17052007-145601/.

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Proposição: O objetivo deste trabalho foi comparar medidas cefalométricas lineares obtidas por meio de telerradiografias em normas lateral e frontal, com medidas obtidas com tomografia computadorizada multisclice em terceira dimensão (3D-TC), verificar a acurácia na comparação com o padrão ouro (medidas físicas) e checar a precisão intra-examinador e interexaminadores na localização de 10 pontos cefalométricos. Material e métodos: A amostra estudada consistiu de crânios humanos secos (n=10). As telerradiografias foram obtidas no Departamento de Ortodontia e Odontopediatria da Faculdade de Odontologia da USP, por meio de um aparelho Yoshida Dental, modelo Panoura, e as imagens de 3D-TC foram adquiridas por meio de um tomógrafo computadorizado multilsice de 16 canais, (Aquilion® ? Toshiba) pertencente ao Instituto do Coração de São Paulo, utilizando um protocolo com espessura de corte de 0,5 mm e intervalo de reconstrução de 0,3 mm. Os dados originais foram transferidos para uma estação de trabalho independente com o programa de visualização volumétrica Vitrea®, onde as medidas foram realizadas em terceira dimensão e com o auxílio das reconstruções multiplanares, para permitir a comparação com as medidas realizadas a partir das telerradiografias em normas lateral e frontal, com o auxílio do software Dolphin®. Resultados e Conclusões: As medidas obtidas por meio da 3D-TC apresentaram erros intra-examinador e interexaminadores insignificantes em termos absolutos (mm) e percentuais e, correlações intraclasse elevadas com intervalos de confiança estreitos, para todas as medidas. Com relação à acurácia, a 3D-TC apresentou valores elevados para as correlações intraclasse e intervalos de confiança (95%) estreitos nas comparações com o padrão ouro, para todas as medidas. A técnica que emprega a cefalometria radiográfica convencional apresentou imprecisão para a medida da grandeza Zm(d)- Zm(e) e inacurácia com relação ao padrão-ouro para todas as medidas, com exceção da medida da grandeza Co-Gn, que se mostrou precisa e acurada. A tomografia computadorizada multislice se mostrou mais precisa e acurada do que as telerradiografias em normas lateral e frontal, de forma estatisticamente significante, para a obtenção de medidas em crânios secos.
Proposition: The purpose of this study was to compare linear cephalometric measurements obtained by means of lateral and frontal conventional cephalograms, within measurements obtained by means of a multislice computed tomography in third dimension (3D-CT), verify its accuracy in comparison with the gold-standard (direct physical measurements) and verify the preciseness intra-observer and interobserver for locating 10 cephalometric landmarks. Material and Methods: The sample under investigation was constituted by dry human skulls (n=10). The conventional cephalograms, were taken in the department of orthodontics and pediatric dentistry in the School of Dentistry ? São Paulo University, utilizing a Panoura® X-ray equipment (Yoshida Dental) and the 3D-CT images were obtained utilizing a 16 channel MSCT scanner (Aquilion® - Toshiba) located in the ?Instituto do Coração de São Paulo? (School of Medicine/University of São Paulo). The acquisition parameter was 0,5 mm slice thickness by 0,3 slice rendering. The raw data was transferred to an independent workstation containing the Vitrea® software, where the measurements were made in 3D and aided by multiplanar reformations for posterior comparison with those measurements made over the lateral and frontal conventional cephalograms, using the software Dolphin®. Results and Conclusions: The averages of measurements obtained from 3D-CT were consistently precise and accurate. They shown higher ICC values and short intervals of confidence (95%) in comparison with the gold-standard, in addition, the intra-observer and inter-observer error, were low in absolute (mm) and percent terms. Regarding the conventional cephalograms, the measurement Zm(d)-Zm(e) shown lack of preciseness for intra-observer and interobserver. Were also noticed an inaccuracy for all measurements, in comparison with the gold standard, excepting for the Co-Gn measurement, that presented preciseness and accuracy for both observers. The multislice computed tomography is a reliable method and was statistically significant, more precise and accurate for cranial measurements than the conventional cephalograms.

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Books on the topic "Multislice Computed Tomography"

1

Maximilian, Reiser, and Banno T, eds. Multislice CT. 2nd ed. Berlin: Springer, 2004.

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Peter, Dawson. Protocols for Multislice Helical Computed Tomography. Taylor & Francis Group, 2019.

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Peter, Dawson. Protocols for Multislice Helical Computed Tomography. CRC Press, 2006. http://dx.doi.org/10.1201/9780203931554.

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Multislice CT: Principles and Protocols. Saunders, 2005.

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Multislice Computed Tomography: Principles, Practice, and Clinical Protocols. 2nd ed. Lippincott Williams & Wilkins, 2002.

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Peter, Dawson. Protocols for Multislice Helical Computed Tomography: The Fundamentals. Informa Healthcare, 2006.

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M, Silverman Paul, and Bhalla Sanjeev, eds. Multislice computed tomography: A practical approach to clinical protocols. Philadelphia: Lippincott Williams & Wilkins, 2002.

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Ho, Siew Yen, Francesco Faletra, and Natesa Pandian. Anatomy of the Heart by Multislice Computed Tomography. Wiley & Sons, Incorporated, John, 2009.

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Prokop, Mathias, Michael Galanski, Cornelia Schaefer-Prokop, and Aart J. van der Molen. Spiral and Multislice Computed Tomography of the Body. Thieme Publishing Group, 2002.

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Spiral and Multislice Computed Tomography of the Body. Thieme Medical Publishers, 2001.

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Book chapters on the topic "Multislice Computed Tomography"

1

Schaller, S., and T. Flohr. "Computed Tomography — Past, Present and Future." In Multislice CT, 3–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18758-2_1.

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Bahner, Malte L., and J. M. Boese. "Coronary Computed Tomography Angiography Using Multislice Computed Tomography: Pitfalls and Potential." In Multislice CT: A Practical Guide, 111–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59450-2_11.

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Becker, Christoph R. "Multislice Computed Tomography Angiography of the Coronary Arteries." In Multislice CT, 159–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-05379-9_17.

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Negusei, Joseph, Ian R. Drexler, Jim Cheung, and Quynh A. Truong. "Computed Tomography in the Management of Electrophysiology Procedures." In Multislice CT, 755–76. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/174_2016_99.

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de Feyter, P. J., F. Cademartiri, N. R. Mollet, and K. Nieman. "Computed Tomography Techniques and Principles. Part b. Multislice Computed Tomography." In Noninvasive Imaging of Myocardial Ischemia, 99–106. London: Springer London, 2006. http://dx.doi.org/10.1007/1-84628-156-3_7.

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Becker, Christoph R., Bernd M. Ohnesorge, U. Joseph Schoepf, and Maximilian F. Reiser. "Coronary Atherosclerosis in Multislice Computed Tomography." In Multislice CT: A Practical Guide, 98–110. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59450-2_10.

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Laghi, Andrea, Valeria Panebianco, Carlo Catalano, Riccardo Iannaccone, Filippo G. Assael, Sante Iori, and Roberto Passariello. "Multislice Computed Tomography Colonography: Technique Optimization." In Multislice CT: A Practical Guide, 216–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59450-2_22.

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Datta, Jaydip. "Cardiac Applications of Multislice Computed Tomography." In Nuclear Cardiology and Correlative Imaging, 395–405. New York, NY: Springer New York, 2004. http://dx.doi.org/10.1007/978-1-4612-2038-1_15.

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Carrascosa, Patricia, Carlos Capuñay, Carlos E. Sueldo, and Juan Mariano Baronio. "Technical Aspects of Multislice Computed Tomography." In CT Virtual Hysterosalpingography, 3–11. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07560-0_1.

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Pugliese, Francesca, and Pim J. de Feyter. "Multislice Computed Tomography of Coronary Arteries." In Interventional Cardiology, 179–97. Oxford, UK: Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9781444319446.ch12.

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Conference papers on the topic "Multislice Computed Tomography"

1

Bruder, Herbert, Marc Kachelriess, Stefan Schaller, and Thomas Mertelmeier. "Performance of approximate cone-beam reconstruction in multislice computed tomography." In Medical Imaging 2000, edited by Kenneth M. Hanson. SPIE, 2000. http://dx.doi.org/10.1117/12.387715.

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Wagner, JH, P. Mittmann, I. Todt, R. Seidl, AF Skulj, S. Mutze, M. Windgassen, C. Buschmann, and A. Ernst. "Superior canal dehiscence syndrome – A comparative postmortem multislice computed tomography study." In Abstract- und Posterband – 89. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Forschung heute – Zukunft morgen. Georg Thieme Verlag KG, 2018. http://dx.doi.org/10.1055/s-0038-1640671.

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Dobeli, K., S. Lewis, S. Meikle, D. Thiele, and P. C. Brennan. "Dose-optimized slice thickness for routine multislice computed tomography liver examinations." In SPIE Medical Imaging, edited by Craig K. Abbey and Claudia R. Mello-Thoms. SPIE, 2012. http://dx.doi.org/10.1117/12.910452.

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Bogossian, HB, TR Lara, GF Matos, EC Meyer, RB Passos, M. Funari, and CS Barbas. "Analysis of Thoracic Multislice Computed Tomography of Patients with Pulmonary Complains in a General Hospital." In American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California. American Thoracic Society, 2009. http://dx.doi.org/10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a4404.

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Stantz, Keith M., Yun Liang, Cristopher A. Meyer, Shawn Teague, Michael Stecker, Gary Hutchins, Gordon McLennan, and Scott Persohn. "In-vivo regional myocardial perfusion measurements in a porcine model by ECG-gated multislice computed tomography." In Medical Imaging 2003, edited by Anne V. Clough and Amir A. Amini. SPIE, 2003. http://dx.doi.org/10.1117/12.480431.

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Simon, A., M. Garreau, D. Boulmier, C. Toumoulin, and H. Le Breton. "Cardiac motion estimation in multislice computed tomography imaging using a 4D multiscale surface-volume matching process." In Computers in Cardiology, 2005. IEEE, 2005. http://dx.doi.org/10.1109/cic.2005.1588076.

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Strocchi, Sabina, Vittoria Colli, Raffaele Novario, Gianpaolo Carrafiello, Andrea Giorgianni, Aldo Macchi, Carlo Fugazzola, and Leopoldo Conte. "Dedicated dental volumetric and total body multislice computed tomography: a comparison of image quality and radiation dose." In Medical Imaging, edited by Jiang Hsieh and Michael J. Flynn. SPIE, 2007. http://dx.doi.org/10.1117/12.708431.

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Liu, Li, Junichiro Sakamoto, Tohru Kurabayashi, Kaili Wang, and Hu Wang. "Odontogenic keratocyst involving zygoma: Cone-beam and Multislice spiral computed tomography aided the precise definition and appropriate treatment for the rare location." In 2021 IEEE International Conference on Medical Imaging Physics and Engineering (ICMIPE). IEEE, 2021. http://dx.doi.org/10.1109/icmipe53131.2021.9698900.

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Solowjowa, N., D. Zimpfer, M. Müller, H. Krastev, V. Falk, T. Schlöglhofer, C. Starck, E. Potapov, and I. Netuka. "Outflow Graft Twist Occlusion in the HeartMate 3 Left Ventricular Assist System in 7 Cases: Analysis of Potential Mechanisms Using Contrast-Enhanced Multislice Computed Tomography." In 48th Annual Meeting German Society for Thoracic, Cardiac, and Vascular Surgery. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1679022.

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Bockeria, L. A., G. I. Kiknadze, I. A. Gachechiladze, and A. Y. Gorodkov. "Application of Tornado-Flow Fundamental Hydrodynamic Theory to the Study of Blood Flow in the Heart: Further Development of Tornado-Like Jet Technology." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63769.

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Abstract:

It has been proved previously that the Tornado-like swirling flows have strictly ordered hydrodynamic structure which can be exhaustively described by using the exact solution of non-stationary Navier-Stokes and continuity equations for this class of flows [1]. Analysis of the geometry of the flowing channel of the left ventricle (LV) and aorta has shown close correlation between the shape of the cavities and intraventricular trabeculae orientation with the streamlines of Tornado-like flows. LV casts morphometry, MRI tomography and 4D velocimetry of the flow velocity field in the aorta, allowed to prove that the blood flow in the LV and aorta corresponds to this class of flows and may be described using the exact solution [7,8,10]. The current study proposes a method of measurement and calculation of the flow structural parameters derived from the exact solution, using LV cavity casts morphometry in humans and dogs and Multislice computed tomography (MSCT) of LV in two patients without severe cardiac pathology. It has been shown that the dynamic expression of intracardiac trabeculae and instant shape of LV cavity within a complete cardiac cycle correspond closely to the stages of single Tornado-like jet evolution. Since the intraventricular trabeculae profile is streamlined continuously by the blood flow, it should determine the hydrodynamic flow structure as an ensemble of guiding vanes. Therefore it has been concluded that the intraventricular flow dynamics can be analyzed and quantified using the exact solution. Application of this analysis to the MSCT visualization of LV cavity dynamics has shown the validity of this approach, which may be used for clinical diagnostic purpose. A realistic mathematical model of intraventricular blood flow has been proposed and evaluated. The results showed a good agreement between the model and known cardiac anatomy and function.

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