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Rozprawy doktorskie na temat „Nuclear medicine”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 25 lipca 2025

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1

Sooriyajeevan, M. J. S. J. "Image filtering in nuclear medicine." Thesis, University of Aberdeen, 1996. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU090122.

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Nuclear medicine images are degraded by blurring caused by the gamma camera system response function and the inherent Poisson noise of radioactivity. Well known digital filters proposed for the restoration of these images have been investigated in this thesis. Particularly, Metz filter and a two-step filter have been extensively studied by the FROC methodology. The effectiveness and practical limitations of the FROC methodology in the assessment of nuclear medicine images have also been investigated. It was observed from the results that the closeness of test patterns to the real clinical case
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2

Jammal, Ghada. "Multiscale image restoration in nuclear medicine." Phd thesis, [S.l.] : [s.n.], 2001. http://elib.tu-darmstadt.de/diss/000100/GJammal.pdf.

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3

Darwesh, Reem. "Motion correction in nuclear medicine imaging." Thesis, University of Nottingham, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664310.

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Patient motion either internal (organ motion) or external (body movement) can produce artefacts that can adversely affect nuclear medicine imaging. Motion artefacts can impair diagnostic information and potentially affect the image findings and prognosis for patients. The goal of this work was to investigate the effect of motion on nuclear medicine imaging and to improve image quality, lesion detectability, and tumour volume delineation by applying motion correction techniques. To investigate the effects of motion under controlled simulated conditions, a three dimensional phantom drive system
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4

Jose, Romina Marie Johnston. "Analysis of renal nuclear medicine images." Thesis, King's College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342249.

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5

Whalley, D. R. "Image processing techniques in nuclear medicine." Thesis, Open University, 1989. http://oro.open.ac.uk/57292/.

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The application of image processing techniques to radionuclide images acquired on a gamma camera - computer system has been investigated. Hepatic perfusion imaging studies with 99TcID-tin colloid were performed in patients with primary colorectal carcimma. The hepatic perfusion index perform~ poorly in the detection of those patients with occult or overt hepatic metastastes, as did mean transit times of liver colloid flow derived from deconvolution analysis. A discriminant function was developed which separated those patients with occult metastases from those without liver disease. A fully aut
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6

Valastyán, Iván. "Applications of tomographic imaging in nuclear medicine." Licentiate thesis, KTH, Physics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4187.

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Valastyán, Iván. "Applications of tomographic imaging in nuclear medicine /." Stockholm : School of engineering sciences, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4187.

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8

Oliveira, V. A. "Maximum entropy image restoration in nuclear medicine." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235282.

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9

Eskin, Joshua Daniel 1960. "Semiconductor gamma-ray detectors for nuclear medicine." Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/288740.

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Semiconductor-based gamma-ray-imaging detectors are under development for use in high-resolution nuclear medicine imaging applications. These detectors, based on cadmium zinc telluride, hold great promise for delivering improved spatial resolution and detection efficiency over current methods. This dissertation presents work done on three fronts, all directed toward enhancing the practicality of these imaging devices. Electronic readout systems were built to produce gamma-ray images from the raw signals generated by the imagers. Mathematical models were developed to describe the detection proc
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10

Harvey, Darren Keith. "Design of a Compton camera for nuclear medicine." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284644.

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11

Aguwa, Kasarachi. "Radiation Dose Study in Nuclear Medicine Using GATE." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/593601.

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Dose as a result of radiation exposure is the notion generally used to disclose the imparted energy in a volume of tissue to a potential biological effect. The basic unit defined by the international system of units (SI system) is the radiation absorbed dose, which is expressed as the mean imparted energy in a mass element of the tissue known as "gray" (Gy) or J/kg. The procedure for ascertaining the absorbed dose is complicated since it involves the radiation transport of numerous types of charged particles and coupled photon interactions. The most precise method is to perform a full 3D Monte
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12

PUPILLO, Gaia. "Radioisotopes production via accelerator for nuclear medicine applications." Doctoral thesis, Università degli studi di Ferrara, 2014. http://hdl.handle.net/11392/2388938.

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13

McGrath, Deirdre Maria. "Maximum entropy deconvolution of low count nuclear medicine images." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285623.

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14

von, Jagwitz-Biegnitz Ernst Wilhelm Heinrich. "Commissioning of a novel electrostatic accelerator for nuclear medicine." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:7f47fd29-face-405b-889f-6b6a339c12cb.

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Siemens Corporate Technology New Technology Fields Healthcare &amp; Technology Concepts (CT NTF HTC) have proposed a novel electrostatic accelerator for nuclear medicine which aims at gradients of up to 10 MV m<sup>-1</sup>. With beam currents of 100 &mu;A at &asymp;10 MeV it might replace cyclotrons whilst being simpler, more reliable and more cost effective. The accelerator concept consists of concentric hemispherical metallic shells spaced by insulators and placed in a vacuum system. The shells are interconnected by high voltage diodes so that they form a voltage multiplier with its highest
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15

Cantell, Gillian Diane. "Measurement of image quality in nuclear medicine and radiology." Thesis, University of Aberdeen, 1995. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU078704.

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The imaging process can be thought of as the acquisition of data and the processing and display of data. The image quality of the acquired data is assessed using objective methods. The spatial transfer characteristic was measured using the MTF, and the noise properties assessed using Wiener spectra for gamma camera and film-screen systems. An overall measure of image quality, noise equivalent quanta, can then be calculated. The image quality of the displayed data is assessed using subjective methods. Contrast detail test objects have been used for film-screen systems and forced choice experime
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16

Nguyen, Son Hung 1966. "Topographic classification of nuclear medicine images for tumor detection." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278117.

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Topographic classification is a nonlinear technique used to enhance nuclear medicine images for tumor detection. Second-order directional derivatives are computed at each pixel location after performing a least-squares fit of the underlying surface using a bivariate cubic polynomial. The eigenvalues and their corresponding eigenvectors computed from the Hessian matrix determine which topographic feature is assigned to the image pixel. Parameter selection for the mask size, curvature threshold, and angle thresholds are chosen to yield the "best" classified image. The classifier is applied to cl
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17

Sampedro, Santaló Frederic. "Automatic image quantification strategies in clinical nuclear medicine and neuroradiology." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/402270.

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Amb la revolució de la tecnologia digital d’obtenció d’imatges radiològiques i l’increment de la potència computacional, el camp de la quantificació d’imatges mèdiques ha sorgit. El fet de poder programar un ordinador per a que detecti patrons d’interès en imatges radiològiques i pugui derivar-ne d’aquests indicadors numèrics amb valor clínic fa que, sens dubte, aquest àmbit de coneixement tingui un gran potencial en entorns mèdics i de recerca. En aquesta tesi es presenten un conjunt de contribucions científiques en aquest context. En particular, es descriu el disseny i la implementació d’u
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18

Danielsson, Rimma. "Nuclear medicine imaging of breast cancer and regional lymph nodes /." Stockholm, 2000. http://diss.kib.ki.se/2000/91-628-4498-9/.

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19

Wilczek, Brigitte. "Application of nuclear medicine methods in patients with breast cancer /." Stockholm, 2005. http://diss.kib.ki.se/2005/91-7140-340-X/.

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20

Dufford, Christopher Allyn. "Feasibility of angular correlation measurements using clinical nuclear medicine equipment." Oklahoma City : [s.n.], 2009.

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21

Vestergren, Eleonor. "Administered radiopharmaceutical activity and radiation dosimetry in paediatric nuclear medicine." Lund : Dept. of Radiation Physics, University og Göteborg, 1998. http://catalog.hathitrust.org/api/volumes/oclc/39776733.html.

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22

MARTINI, Petra. "High-Yield Cyclotron Production of Metallic Radioisotopes for Nuclear Medicine." Doctoral thesis, Università degli studi di Ferrara, 2018. http://hdl.handle.net/11392/2487885.

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The main purpose of LARAMED project (LAboratoty of Radioisotopes for MEDicine), founded at LNL-INFN, is the R&D on cyclotron production of conventional, such as Tc-99m (TECHN-OSP projects), and emerging, such as Cu-67 (COME project), metallic medical radioisotopes. The aim of my PhD has been the development, optimization and automation of post-irradiation target processing systems, enabling to recover in high yield highly pure radioisotopes (RI), one of the most critical steps in the RI cyclotron production. The possibility of a reactor-produced molybdenum-99 shortage, used as parent nuclide o
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23

Ker, Mary Virginia. "Using texture to predict diagnosis and disease from nuclear medicine lung perfusion scans: A comparison of nuclear medicine physicians to the slope of the power spectrum." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185562.

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The lung has been satisfactorily modelled as a fractal, and change in lung structure due to disease is assumed to change the fractal dimensionality of the lung. It is hypothesized that those changes in fractal dimension affect perceptually relevant elements (perceived texture) of the lung, and therefore the fractal dimension may prove to be a predictor of diagnosis. If the fractal dimensionality reflects structure in ways more accurately reflecting changes in lung structure than can be achieved by nuclear medicine physicians, then it may also prove useful as a diagnostic tool. Fractal dimensio
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24

Kyriakidou, Georgia. "Medicines authentication using nuclear quadrupole resonance." Thesis, King's College London (University of London), 2016. https://kclpure.kcl.ac.uk/portal/en/theses/medicine-authentication-using-nuclear-quadrulope-resonance(793151c5-1939-4891-af01-f493cb48d846).html.

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Nuclear Quadrupole Resonance (NQR) is a radio-frequency (RF) spectroscopic technique, that allows the detection of solid-state compounds containing quadrupolar nuclei; a property of the majority of pharmaceutical products. This thesis investigates the application of NQR in medicines authentication, where accurate \ fingerprints" of the examined materials must be obtained, in response to the global threat of low quality and counterfeit medicines. In practice, a complete NQR system contains a database with profiles of commercial medicines, built using characteristic features of the NQR signals.
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25

Lazarova, Neva. "Technetium and rhenium radiopharmaceutical agents in nuclear medicine design and synthesis /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2005. http://wwwlib.umi.com/cr/syr/main.

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26

Jakobson, Mo Susanna. "Nuclear medicine methods in idiopathic Parkinsonism : pre- and postsynaptic dopamine SPECT." Doctoral thesis, Umeå universitet, Diagnostisk radiologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-70275.

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Background: Single photon emission computed tomography (SPECT) with dopamine transporter (DAT) and dopamine D2 receptor (D2R) ligands can visualise the integrity of the nigrostriatal dopamine system. Parkinson’s disease (PD) and the atypical parkinsonian diseases (APD), progressive supranuclear palsy (PSP) and multiple system atrophy (MSA), have similar symptoms and dopamine depletion, but differ in pharmacological response and prognosis. Clinical differentiation between PD and APD is often difficult in the early stages. The aims of the thesis were to evaluate the differential diagnostic and p
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27

Matherson, Kevin James. "Design, development, and analysis of semiconductor-based instrumentation for nuclear medicine." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280432.

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Nuclear medicine imaging using a gamma camera is a sensitive tool for mapping various physiological and biological processes in vivo. In some respects, the instrumentation for gamma-ray imaging is highly developed. Nevertheless, current technology in nuclear medicine has some significant limitations in the area of spatial resolution. Scintillator-based imaging systems most likely have reached their limits of spatial resolution. Achieving higher spatial resolution will require the use of semiconductor detectors. The first part and major focus of this dissertation is the development of a prototy
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28

Pavía, Segura Javier. "Procesado de secuencias dinámicas en medicina nuclear." Doctoral thesis, Universitat de Barcelona, 1992. http://hdl.handle.net/10803/32029.

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El uso de los ordenadores en Medicina Nuclear ha permitido la cuantificación de exploraciones, sobre todo las dinámicas. Debido a la gran cantidad de información presente en estos estudios es preciso efectuar una compresión de estos datos, de forma que hagan más fácil su interpretación. Una de las formas de reducción consiste en la obtención de imágenes paramétricas. El objetivo de este trabajo se centra en analizar la utilidad de estas imágenes paramétricas para la cuantificación de estudios dinámicos en tres aplicaciones. La primera aplicación es en los estudios de perfusión miocárdica
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29

Ferreira, Fernanda Carla Lima. "Desenvolvimento de objetos simuladores para medicina nuclear." Universidade Federal de Sergipe, 2011. https://ri.ufs.br/handle/riufs/5236.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The phantoms used in Brazil are mostly imported and have relatively high financial cost. Although these phantoms can be considered as essentials for use in quality control, probably high quotas and import bureaucracy are obstacles to their acquisition by the nuclear medicine departments. The main objective of this work was the development of national phantoms for use in quality control of scintillation cameras used in nuclear medicine and for training professional personnel. Initially, we sought to know the interest of medical phy
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Somers, Sarin J. "Role of nuclear factors kappa-B in TNFα-induced cytoprotection". Master's thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/3466.

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31

James, Shelly. "Rhenium and technetium radiopharmaceuticals design and development for applicatons in nuclear medicine /." Related electronic resource:, 2007. http://proquest.umi.com/pqdweb?did=1398610481&sid=1&Fmt=2&clientId=3739&RQT=309&VName=PQD.

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32

Roldan, Rueda Diana Marcela. "Nuclear medicine: policy context for differences between Europe and the United States." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/53389.

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The World Health Organization published in 2004 a bulletin addressing the gap between research, technology, and its implementation in the health systems of different countries (Haines, Kuruvilla, & Borchert, 2004). Among the barriers described for the implementation of new knowledge in the medical practice is the lack of connection between research results and policy makers. This happens in different subfields within the medical field. The focus of this project is to analyze the differences in implementation of radionuclide therapy technology between the EU and the US. The hypothesis is that
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33

Livieratos-Petratos, George N. "Neural networks for computer aided diagnosis of pulmonary images in nuclear medicine." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295017.

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34

Yea, Young-bai Michael, and Hui Zou. "Replenishment prioritization of highly perishable goods : a case study on nuclear medicine." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/55259.

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Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology, Engineering Systems Division, 2007.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 74).<br>Serving customers in a nuclear medicine supply chain requires frequent and responsive replenishments. Nuclear medicine is a special category of perishable goods that is subject to rapid, but predictable radioactive decay. This study examines the viability of differentiating service through segmenting customers in Tyco Healthcare's (THC's) nuclear medicine supply chain. More specifically, the network
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35

Philotheou, Geraldine Merle. "Distance assisted training for nuclear medicine technologists in anglophone sub-Saharan Africa." Thesis, Peninsula Technikon, 2003. http://hdl.handle.net/20.500.11838/1553.

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Dissertation (MTech (radiography))—Peninsula Technikon, Cape Town, 2003<br>Five of the seventeen countries with Nuclear Medicine facilities in Africa have training programmes for Nuclear Medicine Technologists (NMT's). Four of the countries are in Northern Africa (Algeria, Morocco, Tunisia, and Egypt) and only one in Southern Africa (South Africa). The training programmes vary from country to country and therefore there is no common basis to facilitate regional co-operation. Nuclear Medicine Technologists working in sub-Saharan countries do not have formal training in Nuclear Medicine an
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36

SATO, RENATO C. "Doencas cronicas e tecnologia nuclear: estudo exploratorio envolvendo a precepcao de medicos clinicos." reponame:Repositório Institucional do IPEN, 2010. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9535.

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Made available in DSpace on 2014-10-09T12:27:44Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:05:03Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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BARBOZA, ALEX. "Gestao de rejeitos radioativos em servicos de medicina nuclear." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9377.

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Made available in DSpace on 2014-10-09T12:26:21Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:09:59Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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38

Amoako, Yaw Ampem. "Relationship between ¹²³l-metaiodobenzylguanidine (¹²³l-MIBG) imaging findings and outcome in patients with neuroblastoma at the Red Cross War Memorial Children's Hospital." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27433.

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Background: In neuroblastoma, the presence of distant metastases is associated with a poor prognosis. Aim: To assess the relationship between the findings on ¹²³I-MIBG scan and outcome in patients with neuroblastoma at the Red Cross War Memorial Children's Hospital (RCWMCH). Methods: A single observer reviewed the ¹²³I-MIBG scans and clinical data of patients who had a histologically confirmed diagnosis of neuroblastoma and a baseline ¹²³I-MIBG scan and at least one follow up scan after chemotherapy cycles 4 or 7 between January 2001 and May 2015. Follow up extended to June 2016. Disease burde
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39

Brink, Anita. "Renogram Image Characteristics and the Reproducibility of Differential Renal Function Measurement." Doctoral thesis, Faculty of Health Sciences, 2019. https://hdl.handle.net/11427/31657.

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Aim The reproducibility of differential renal function (DRF) estimates on 99mTc-mercaptoacetyltriglycine (99m Tc-MAG3) is good in the majority of children. There is however a small but important group with poor reproducibility which, if not recognized, could affect clinical decision making. Some factors, such as age and glomerular filtration rate (GFR), have been implicated as causes for poor reproducibility. The aim of this study is to formally investigate image characteristics associated with the reproducibility of DRF measurements. Patients and methods The image characteristics
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40

Amoako, Yaw Ampem. "Relationship between ¹²³l-metaiodobenzylguanidine (¹²³l-MIBG) imaging findings and outcome in patients with neuroblastoma at the Red Cross War Memorial Children's Hospital." Master's thesis, University of Cape Town, 2002. http://hdl.handle.net/11427/27433.

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Background: In neuroblastoma, the presence of distant metastases is associated with a poor prognosis. Aim: To assess the relationship between the findings on ¹²³I-MIBG scan and outcome in patients with neuroblastoma at the Red Cross War Memorial Children's Hospital (RCWMCH). Methods: A single observer reviewed the ¹²³I-MIBG scans and clinical data of patients who had a histologically confirmed diagnosis of neuroblastoma and a baseline ¹²³I-MIBG scan and at least one follow up scan after chemotherapy cycles 4 or 7 between January 2001 and May 2015. Follow up extended to June 2016. Disease burde
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41

Abubakar, Sofiullah. "The conclusions drawn from ventilation/perfusion single photon emission computed tomography (SPECT) compared to lung perfusion SPECT and a chest x-ray (CXR) in patients with suspected pulmonary pulmonary thromboembolism." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29578.

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Purpose: There are conflicting results from studies on whether the ventilation (V) scintigraphy can be safely omitted or replaced by a chest x-ray. These studies were based on planar ventilation perfusion (V/Q) scintigraphy. We evaluated the value of the V single photon emission computed tomography (SPECT) on the final conclusion drawn from a V/Q SPECT and the possible role of the chest x-ray as a surrogate for the V SPECT. Methods Raw data of V/Q SPECT images and chest x-ray acquired within 48 hours over 18 months period were retrieved, reprocessed and reviewed in batches. The V SPECT, Q SPEC
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42

Nizami, Mohammad Athar Farooq. "The role of Technetium-99m Sestamibi scintimammography to evaluate palpable breast lesions : a comparison with mammography and histological results." Master's thesis, University of Cape Town, 1999. http://hdl.handle.net/11427/26922.

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This study was conducted with the support of the Combined Breast Clinic at our institution which consists of the Departments of Surgery, Radiology and Radiation Oncology. The work was done in three parts. The literature showed somewhat lengthy imaging procedure for scintimammography which were not whole suitable to the setting of the Combined Breast Clinic. Initially a Pilot Study was conducted to determine the practicality of the imaging procedure. The results of this study were promising but the imaging procedure was time consuming. Certain modifications were subsequently done in the imaging
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43

Korowlay, Nisaar Ahmed. "The use of lymphoscintigraphy to localise the sentinel lymph node." Master's thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/2802.

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Includes bibliographical references (leaves 72-90).<br>Sentinel lymph node (SLN) biopsy is being used increasingly for staging early breast carcinoma in place of complete axillary lymph node dissection. The optimal method to identify the SLN and has not been clearly elucidated in the literature. A number of techniques have been proposed for identifying SLN/s. The main debate centres on whether to use a blue dye or radiopharmaceutical method either singly or in combination.
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44

More, Stuart Setjhaba. "Renal Cortical Transit time as a predictor for pyeloplasty in paediatric patients with unilateral hydronephrosis at the Red Cross War Memorial Children's Hospital." Master's thesis, Faculty of Health Sciences, 2018. http://hdl.handle.net/11427/30166.

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Background: Majority of patients with unilateral hydronephrosis (HN) detected on ultrasound (US) do not require pyeloplasty. Indications for pyeloplasty are in patients with symptomatic obstruction (recurrent flank pain), complications such as urinary tract infection, a drop in differential renal function (DRF) of more than 10% and a progressive increase in the anterior posterior diameter (APD) in subsequent studies. Schlotmann et al, Piepsz et al and Harper et al have demonstrated the measurement of the cortical transit time (CTT) to predict the need for patient who may require pyelopl
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45

Yunusa, Garba Haruna. "Assessment of the impact of the application single photon emission computerized tomography and SPECT-CT on lesion catergorization." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/16777.

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Includes bibliographical references<br>Objectives: To assess initial experience with the use of a new SPECT-CT in the evaluation of lesions. Methods: The folder number, radiopharmaceutical used and type of scan of patients examined with a new Siemens T6 SPECT-CT between 2 April and 31 December 2013 were retrieved. The number of 99m Tc -MDP bone scans was sufficient for a detailed analysis. The scans were re-processed and reported by the observer before he was given any clinical information. Whole body planar, whole body planar plus SPECT and whole body planar plus SPECT-CT images were assessed
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Lima, Mariana da Cunha Lopes de. "Etilenodicisteína-99m Tc é um radiofármaco mais efetivo que o ácido dietilenotriaminopentacético-99m Tc para excluir obstrução em pacientes com dilatação das vias urinárias." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/308695.

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Orientador: Celso Dario Ramos<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-16T23:06:04Z (GMT). No. of bitstreams: 1 Lima_MarianadaCunhaLopesde_D.pdf: 5311684 bytes, checksum: 4e6a0ba6a1a013ca5e9a995b127a5a95 (MD5) Previous issue date: 2010<br>Resumo: A diferenciação entre obstrução mecânica e dilatação das vias urinárias sem obstrução é extremamente importante para se determinar o tratamento correto. O objetivo deste trabalho foi avaliar a utilidade do estudo renal dinâmico com diurético (ERDD) com L,L-etilenodi
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Jarretta, Georgea Bignardi. "Estudo do tempo de excreção renal através da cintilografia em felinos domésticos." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/10/10132/tde-03072006-175503/.

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Na rotina clínica de felinos domésticos, algumas modalidades de diagnóstico por imagem, como a ultra-sonografia, radiografia simples e urografia excretora, já são amplamente utilizadas. A cintilografia é uma técnica não invasiva, capaz de oferecer informações funcionais de rins individualmente, porém é considerada uma modalidade menos usual. O objetivo deste estudo foi determinar o tempo de excreção renal de felinos domésticos através da cintilografia, em animais com parâmetros ultra-sonográficos e radiográficos dentro dos limites da normalidade. Foram utilizados 15 animais, 9 machos e 6 fêmea
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Rodrigues, Gabriela Silva. "Avaliação da técnica de cintilografia da perfusão pulmonar em cães." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/10/10132/tde-11072007-101644/.

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A avaliação da técnica de cintilografia da perfusão pulmonar foi realizada em 10 cães machos, da raça Rottweiler, radiograficamente normais e soronegativos para dirofilariose, utilizando-se o macroagregado de albumina sérica humana marcado com tecnécio-99m ([99mTc](MAA)) como radiofármaco. Cada animal sedado foi submetido a três diferentes tratamentos, com administração de 50.000, 100.000 e 300.000 partículas de MAA. As imagens obtidas com as doses variadas do radiofármaco, foram comparadas de forma qualitativa e quantitativa, incluindo nesta última a avaliação do índice de perfusão pulmonar e
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Monteiro, Elisiane de Godoy. "Estudo comparativo entre metodologias de cromatografia planar para controle radioquímico de radiofármacos de Tecnécio-99m." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-06032013-134516/.

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Os radiofármacos são substâncias que possuem radioisótopos em sua composição. Cerca de 95% dos procedimentos realizados em medicina nuclear faz o uso de radiofármacos com finalidade diagnóstica, sendo os reagentes liofilizados (RL) marcados com Tecnécio-99 meta estável (99mTc), obtido a partir de um gerador de 99Mo/99mTc, os mais utilizados. O controle de qualidade representa o conjunto de ensaios a serem realizados para certificar que o produto é adequado ao propósito. Um aspecto importante a ser avaliado nos radiofármacos de 99mTc é a pureza radioquímica (% PRq) para quantificação de pertecn
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Eiselen, Thea. "Working towards the implementaion of an international accreditation programme in a Nuclear Medicine Department of a South African teaching hospital." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50550.

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Thesis (MSc)--Stellenbosch University, 2005.<br>ENGLISH ABSTRACT: Introduction: Quality assurance in Nuclear Medicine is of utmost importance in order to ensure optimal scintigraphic results and correct patient management. A customised Quality Management System (QMS) should be documented and implemented by following the international guidelines set by the International Standardisation Organization (ISO). Materials & Methods: A Quality Control Manual (QCM), defining the departmental quality policy, mission, vision and objectives was customised following the framework of a tried and test
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