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Dissertations / Theses on the topic 'Ultrasound thyroid'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Davies, Sarah Elizabeth. "Quantitative Pertechnetate Thyroid Scintigraphy and the Ultrasonographic Appearance of the Thyroid Gland in Clinically Normal Horses." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/32528.

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The purpose of this study was to report the scintigraphic and sonographic appearance of the thyroid gland in clinically normal horses so these modalities could be used to assess the thyroid gland in this species. Horses were divided into two age groups. Group A consisted of 8 horses between 3 and 10 years of age and Group B of 7 horses between 11 and 20 years of age. Total T4 concentrations were within the laboratory reference interval. Thyroid to salivary (T/S) ratio, percent dose uptake of pertechnetate and thyroid lobe volume were calculated. Echogenicity of thyroid lobes and presence

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2

Maia, Frederico Fernandes Ribeiro 1979. "Aspectos clínicos, ultrasonográficos, cintilográficos e cito-patológicos na predição de malignidade do nódulo tireoidiano." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/308789.

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Orientadores: Denise Engelbrecht Zantut-Wittmann, José Vassallo, Patrícia Sabino Matos<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-18T16:27:46Z (GMT). No. of bitstreams: 1 Maia_FredericoFernandesRibeiro_M.pdf: 3526510 bytes, checksum: 65aa0cfcc1c703f9021864119260a326 (MD5) Previous issue date: 2011<br>Resumo: Introdução: A punção aspirativa por agulha fina (PAAF) permanece como o procedimento de referência na avaliação dos nódulos de tireóide. No entanto, em cerca de 10 a 30% dos casos, o diagnóstico cito

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3

Grillo, Felipe Wilker. "Phantom antropomórfico para treinamento de biópsia de tireoide guiada por ultrassom." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/59/59135/tde-27102015-152921/.

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O câncer de tireoide é um dos mais comuns da região da cabeça e pescoço. Atualmente, o método mais eficaz no diagnóstico de lesões da tireoide é a técnica de biópsia conhecida por punção aspirativa por agulha fina (PAAF) guiada por ultrassom. As imagens de ultrassom são utilizadas como guia para inserção de uma agulha fina até a região da lesão, onde são retirados fragmentos de tecido para análise microscópica. O sucesso dos procedimentos de biópsias está diretamente ligado a experiência do médico desde guiar a agulha à lesão até a preparação das lâminas para análise microscópica. O treinamen

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4

Mylonas, Nicos. "Development of positioning devices for MRI-guided high intensity focused ultrasound (HIFU) for abdominal, thyroid and brain, tumours." Thesis, City University London, 2012. http://openaccess.city.ac.uk/2417/.

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High intensity focused ultrasound (HIFU) is a promising technology for a variety of therapeutic applications. This concept initiated in 1942 by Lynn Zwemer [1]. HIFU has long been known as a minimal invasive or non-invasive procedure that destroys tissue through ablation. However, it is only in recent years that clinical applications are becoming feasible, with the development of high power ultrasound transducers compatible with the MRI scanner which is used to monitor these non-invasive HIFU applications. New technologies, combined with more sophisticated treatment methods and monitoring meth

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5

Viana, Gustavo Fernandes. "Avaliação ultrassonográfica e por ressonância magnética da glândula tireoide hígida em equinos adultos." Botucatu, 2018. http://hdl.handle.net/11449/180290.

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Orientador: Vânia Maria de Vasconcelos Machado<br>Resumo: Há poucos estudos disponíveis sobre a aplicação da ultrassonografia para o diagnóstico de tireopatias em equinos e, até onde sabemos, nenhuma pesquisa foi descrita utilizando a ressonância magnética (RM) para o estudo da glândula tireoide em cavalos. Foi observado em alguns relatos de casos que o lobo tireoidiano hígido serviu de base para a avaliação do lobo contralateral alterado. Entretanto, não existem estudos mostrando a relação entre o lobo tireoidiano esquerdo e direito através de técnicas imaginológicas em equinos. A análise de

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6

Liberati, Ana Paula Torres. "Investigação de potenciais fatores de risco para malignidade em pacientes com nódulos tireoidianos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/5/5135/tde-16012014-154040/.

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Os nódulos de tireoide são frequentemente encontrados na prática clínica e, com o auxílio de ultrassonografia de alta resolução, podem ser identificados em 17 a 67% da população. A alta prevalência desses nódulos causa preocupação frequente aos pacientes e aos clínicos devido ao risco de malignidade, o que, por sua vez, leva a investigações laboratoriais de alto custo, invasivas e, eventualmente, a cirurgias desnecessárias. A punção aspirativa com agulha fina (PAAF) é o método diagnóstico pré-operatório mais preciso para identificação de um nódulo maligno de tireoide, mas não consegue excluir

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7

Mišeikytė, Kaubrienė Edita. "Skydliaukės vėžys Lietuvoje: sergamumo ir diagnostikos sąsajos." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090526_151759-41542.

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Darbų apžvalgoje nagrinėjami sergamumo skydliaukės vėžiu pokyčiai Lietuvoje 1978 – 2003 metais bei sergamumo sąsajos su diagnostika. Sergamumas skydliaukės vėžiu Lietuvoje 1978-2003 metais didėjo ir vidutinis metinis pokytis vyrams siekė 4,2% (p<0,0001), o moterims - 6,1% (p<0,0001). Standartizuotas vyrų sergamumo rodiklis padidėjo nuo 0,7 atvejo 100 000 gyventojų 1978 metais iki 2,5 atvejo 100 000 gyventojų 2003 metais, o moterų – atitinkamai nuo 1,5 iki 11,4 atvejo 100 000 gyventojų. Mirtingumas nuo skydliaukės vėžio nagrinėjamu laikotarpiu nepakito. Nustatytas papilinės skydliaukės karcinom

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8

Fraga, Alana Rocha Puppim. "Análise histopatológica e econográfica post mortem das tireóides de pacientes infectados pelo vírus da imunodeficiência humana." Universidade Federal do Espírito Santo, 2011. http://repositorio.ufes.br/handle/10/5942.

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Made available in DSpace on 2016-12-23T13:56:09Z (GMT). No. of bitstreams: 1 Dissertacao de Alana Rocha Puppim Fraga.pdf: 1890576 bytes, checksum: 21b76a7e172deaf402981920bb4b542d (MD5) Previous issue date: 2011-08-22<br>The thyroid follicular cells have a close interaction with the immune system and are often injured by several factors determining autoimmune inflammatory response. Immunosuppression caused by Human Immunodeficiency Virus (HIV) infection provides changes in diverse organic systems, including the endocrine system. To assess the consequences of immunosuppression on the thyroid

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9

Esnault, Olivier. "Thérapeutique par ultrasons focalisés de haute intensité (HIFU) appliquée à la thyroïde : de l’expérimentation animale à l’essai humain." Electronic Thesis or Diss., Lyon 1, 2009. http://www.theses.fr/2009LYO10340.

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La grande fréquence des nodules thyroïdiens et la relative agressivité des traitements conventionnels ont motivé l'étude d'une méthode non invasive utilisant des Ultrasons Focalisés (HIFU). Matériel et méthodes : Les HIFU ont été testés initialement sur un modèle de brebis afin de réaliser une lésion thyroïdienne. Ces études animales ont été suivies de trois études cliniques sur des patients porteurs de nodules thyroïdiens. L'appareil utilisé associe un système d'imagerie échographique et un système de tir. Résultats : Le réglage des paramètres de tir et la mise au point de plusieurs prototype

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10

Esnault, Olivier. "Thérapeutique par ultrasons focalisés de haute intensité (HIFU) appliquée à la thyroïde : de l’expérimentation animale à l’essai humain." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10340.

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La grande fréquence des nodules thyroïdiens et la relative agressivité des traitements conventionnels ont motivé l'étude d'une méthode non invasive utilisant des Ultrasons Focalisés (HIFU). Matériel et méthodes : Les HIFU ont été testés initialement sur un modèle de brebis afin de réaliser une lésion thyroïdienne. Ces études animales ont été suivies de trois études cliniques sur des patients porteurs de nodules thyroïdiens. L'appareil utilisé associe un système d'imagerie échographique et un système de tir. Résultats : Le réglage des paramètres de tir et la mise au point de plusieurs prototype

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11

Nguyen, Thi Thu. "Determination of thyroid volume by ultrasound." Thesis, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30586.

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Background: Ultrasound is safe and painless, produces pictures of the inside of the body using sound waves (not use ionizing radiation), thus there is no radiation exposure to the patient. The thyroid gland is among the most commonly imaged glands using ultrasound due to the limitation of clinical examination. The Radiographers' skills in ultrasound differ according to the country and the basic formations. And throught this study we want to emphasize about the role of radiographer. Aim: The porpuse of this study is determine the volume and morphological characteristics of normal thyroid order

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12

CHEN, KUEN-YUAN, and 陳坤源. "COMPUTER AIDED ULTRASOUND DIAGNOSIS IN THYROID NODULES." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/49619028203932090256.

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博士<br>國立臺灣大學<br>臨床醫學研究所<br>102<br>Thyroid cancer is the most common endocrine malignancy. The incidence is increasing in the past decades. How to improve the detection rate and diagnostic accuracy has become an urgent issue. We proposed the novel computerized methods in this thesis to quantify the ultrasonic features of thyroid cancer. We included two ultrasonic features which were microcalcifications and heterogeneity in this thesis to test whether computerized method could be helpful in diagnosis of thyroid cancer. The first part was to improve the ultrasonographic detection rates of thyroid

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13

Lei, Yue-Fong, and 李岳峰. "Thyroid Segmentation and Volume Estimation in Ultrasound Images." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/q4z2bt.

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碩士<br>國立雲林科技大學<br>資訊工程研究所<br>96<br>Ultrasound (US) image is one of the most common auxiliary tools utilized in clinical diagnosis nowadays. The physician usually diagnoses the pathology of the thyroid gland by its volume. Nevertheless, even if the thyroid glands are acquired and the shapes are hand-marked from US images. Most of the physicians still depend on computed tomography (CT) images for precise volume of the thyroid gland. This approach relies heavily on the experiences of the physicians and costs much precious time of the physicians. In addition, patients have to suffer high radiation

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14

Chen, Wei-You, and 陳威佑. "High Intensity Focused Ultrasound For Thyroid Tumor Thermal Therapy." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/96941814967435029120.

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碩士<br>國立臺灣大學<br>醫學工程學研究所<br>94<br>The purpose of this study is to investigate the feasibility of using high intensity focused ultrasound(HIFU) to treat thyroid nodules tissue without overheating surrounding normal tissues or inducing skin burn . A single element transducer (diameter 3.5cm、radius of curvature 5.5cm and frequency 4MHz) was used in simulation and in-vitro experiment study . Various input power、precooling、water temperature、sonication time and cooling interval among sonications were investigated to evaluate the lesion formation and temperature elevation. Furthermore, the intensity

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15

Huang, Hsin-cheng, and 黃信誠. "Thyroid Nodule Segmentation and Component Analysis in Ultrasound Images." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/75625289815515233985.

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碩士<br>國立雲林科技大學<br>資訊工程研究所<br>97<br>Heterogeneous thyroid nodules which have distinct histopathlogical components and vague boundaries in ultrasound images result in a difficult task when radiologists and physicians manually draw a complete shape of nodule, or distinguish what kind of component a nodule has. Hence, an automatic segmentation and classification method is required to improve this tough work and decrease the misdiagnosis rate in this thesis. We use decision tree algorithm to segment the possible nodular area. And the segmentation is refined to recover the nodular shape and remove e

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16

Liu, Hsiang-Yi, and 劉香意. "Automatic Diagnosis of Thyroid Graves’ Disease in Ultrasound Images." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/75921083247682001154.

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碩士<br>國立雲林科技大學<br>資訊工程研究所<br>97<br>Hyperthyroidism is a common thyroid disease. Graves'' disease is one of the most common etiology with 70-80% of hyperthyroidism. In clinical diagnosis, physicians generally utilize US images for inspections. Unfortunately, they are not able to diagnose the Graves’ disease directly on the US images, and have to rely on blood tests to assure it. The blood tests often take weeks to obtain the inspection results. Hence, in this paper, we proposed an automatic approach to diagnose Graves’ disease on US image fast and directly. The automatic diagnosis meets a short

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17

Kocharyan, Davit. "The relevance of preoperative ultrasound cervical mapping in thyroid cancer." Thèse, 2016. http://hdl.handle.net/1866/18866.

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Pendant les trente dernières années, le taux d'incidence du cancer de la thyroïde chez l'homme et la femme a considérablement augmenté partout dans le monde. Cependant, on estime que d'ici à 2019 le cancer de la thyroïde deviendra le troisième cancer le plus répandu chez les femmes dans tous les groupes d'âge en raison de la tendance d’augmentation plus dramatique chez elles. En général, il n'y a aucune raison claire qui explique l'augmentation mondiale de l'incidence du cancer de la thyroïde et il est émis l'hypothèse que cette recrudescence de l'incidence a une étiologie multifactorielle. Bi

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18

Liu, Chung-Wei, and 劉中維. "Quantification and Performance Analysis of Thyroid Nodule Features from Ultrasound Images." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/29000877162251054913.

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碩士<br>國立臺灣大學<br>工業工程學研究所<br>97<br>The ultrasound technology is widely used in diagnosis of the thyroid nodules. Currently, evaluation of nodule features on the ultrasound images is subjectively made by the medical examiners. There are two major shortcomings of the present approach. First, the result of evaluation varies under different medical examiners. Second, due to the naked-eye evaluation, the evaluation result is usually categorical and is incapable of showing the gravity level of the observed feature. In the literature, the major features for diagnosis of thyroid nodules are microcalcif

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Classens, S. "Quality assessment of thyroid ultrasound and implementation of a standard reporting template to be used in training hospitals." Thesis, 2017. https://hdl.handle.net/10539/25941.

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A research report submitted to the Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Medicine in the branch of Diagnostic Radiology, Johannesburg, 2017<br>Ultrasound is the conventional and best imaging modality used to visualize the thyroid and thyroid-related disease. An adequate ultrasound report can significantly influence clinicians in making management decisions in these patients. Aim: The aim of this study was to critically assess the quality of thyroid ultrasound reports genera

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20

Lin, Wei-Chih, and 林偉智. "A Method of Detecting Thickness of Isthmus for The Ultrasound Image of Thyroid." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/40295875414408276767.

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碩士<br>國立中興大學<br>資訊科學與工程學系所<br>100<br>Nowadays, ultrasound imaging is one of the most common auxiliary tools in clinical diagnosis. Since thyroid is a superficial organ, ultrasound imaging is a suitable method to observe it. Therefore, ultrasonogram is the most common method and widely used in clinical evaluation for thyroid disease. The patients don’t have to suffer high radiation to obtain ultrasound images since ultrasound imaging does not induce ionizing radiation. In addition, the expense of generating ultrasound imaging is quite low. In general, physicians mark the thyroid region manually

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LIN, WEN-CHUN, and 林玟君. "Influence Analysis for Ultrasound-guided FNA with LBP cytology in Thyroid Disease Diagnosis." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/gsy9nf.

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碩士<br>東海大學<br>工業工程與經營資訊學系<br>106<br>Thyroid nodules (TN) are common and became an important clinical problem. About 95% of thyroid cancers are single nodule, but the chance of malignancy is less than 15%. With the increase in the incidence of thyroid cancer in Taiwan, it is important to diagnose thyroid disease through ultrasound-guided fine needle aspiration and cytology report. Traditionally, non-surgeon physicians including radiologists or endocrinologists, performed ultrasound guided-fine needle aspiration through thyroid nodules. In recent years, more and more newly trained surgeons inclu

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22

Chen, Yi-Wen, and 陳憶雯. "Treatment Efficacy and Safety of Ultrasound-Guided Percutaneous Radiofrequency Ablation for Benign Thyroid Nodules." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/e8gvf6.

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23

Germano, Ana Sofia da Conceição Carreira. "A ecografia na optimização da estratificação do risco de malignidade dos nódulos da tiroide. The role of ultrasound in optimizing the stratification of thyroid nodules’ malignancy risk." Doctoral thesis, 2018. http://hdl.handle.net/10362/39612.

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RESUMO: Contexto O carcinoma da tiroide é uma “epidemia” a nível mundial, sendo significativamente mais prevalente no sexo feminino. Nos últimos anos, por a mortalidade permanecer constante, apesar do aumento exponencial da incidência, tem sido colocada a possibilidade de existência de sobre diagnóstico destas lesões. A ecografia de alta resolução é indiscutivelmente a melhor técnica de imagem para detetar nódulos da tiroide. No entanto, é dependente do operador e ainda não consegue, de forma precisa, diferenciar os raros nódulos malignos dos muito frequentes nódulos tiroideus benignos

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Tsai, Ming-Fong, and 蔡明峰. "Apply a Support-Vector-Machine-Based Method for Feature Selection and Classification of Thyroid Nodules in Ultrasound Images." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/17868734334000220673.

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碩士<br>雲林科技大學<br>資訊工程研究所<br>96<br>Most of the thyroid nodules are heterogeneous with various internal components, which confuse many radiologists and physicians with their various echo patterns in ultrasound images. To reduce the misdiagnosis rate, a lot of texture extraction methods are used to characterize these patterns as features. Accordingly, the thyroid nodules can be classified by the corresponding textural features. In this thesis, six support vector machines (SVM) are adopted to select the significant textural features and to classify the nodular lesions of thyroid. Experimental resul

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25

Ncube, Elton. "Diagnostic yield of ultrasound guided fine needle aspirations of thyroid nodules at Charlotte Maxeke Johannesburg and Chris Hani Baragwanath academic hospitals." Thesis, 2019. https://hdl.handle.net/10539/29703.

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A research report submitted to the Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Medicine in Diagnostic Radiology. Johannesburg, 2019<br>INTRODUCTION: Fine needle aspiration of thyroid nodules is a frequently requested and performed procedure in the Department of Radiology at Charlotte Maxeke Johannesburg Academic and Chris Hani Baragwanath Academic Hospitals. The procedure has to be performed and reported according to acceptable guidelines and the diagnostic yield periodically assessed. AIM

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26

Maulina, Novi, and Novi Maulina. "Investigation of Ocular Inflammation in Thyroid Orbitopathy (TO) Patients by Conjunctival Impression Cytology (CIC) and Ultrasound Biomicroscopy (UBM) of the Upper Eyelid Structures." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/44920775331662084788.

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碩士<br>高雄醫學大學<br>醫學研究所碩士班<br>103<br>Thyroid-associated Orbitopathy (TAO or TO) or Graves’ Orbitopathy (GO) is an autoimmune inflammatory eye disease associated with thyroid disorders, which clinical manifestation occurr as a combination of inflammation, increase of orbital fat and extra ocular muscle volume within the orbital space. The incidence rate of this disease is 16 women and 3 men per 100,000 populations. Autoantibodies to both TSHr (Thyroid stimulating hormone-receptor) and IGF-1r (insulin-like growth factor 1 receptor) displayed in the orbital fibroblast contributed in the development

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Procházka, Antonín. "Počítačová analýza ultrazvukových obrazů uzlů ve štítné žláze se zaměřením na jejich sonografické vlastnosti a cytologické nálezy." Doctoral thesis, 2019. http://www.nusl.cz/ntk/nusl-409247.

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Ultrasound imaging is one of the fundamental examinations of thyroid nodules, determining whether a patient undergoes a cytological examination, which is essential for the decision on a possible thyroid surgery. Unfortunately, the cytological examination has limited specificity and potential surgery carries risks. Therefore, other diagnostic methods are being sought with hope that they will be able to bring more certainty into diagnostics. One of the new methods is computer-aided diagnosis (CAD), which exhibits promising results using image analysis and machine learning. In this study, we pres

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