Browsing theses(ps) by Title
Now showing items 1-20 of 32
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Bi/BSA/5 Flouro-uracil nanocomposite as a contrast agent for computed tomography
(Tabriz University of Medical Sciences Faculty of Paramedical School, 2019-08-15)Background: Today, computed tomography (CT) has a special place among medical imaging modalities. Conventional intravascular contrast agents of CT have a short blood half-life and make adverse reactions. To overcome the ... -
Bimodal magnetic resonance and fluorescent imaging using chitosan coated iron oxide-graphene quantum dot nanocomposite and investigation of the loading of 5-fluorouracil in cell culture
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2022-05)Abstract Introduction: Multimodal imaging is a method that uses two or more imaging modalities to synergize the benefits of individual methods. By combining MRI and fluorescence imaging as dual method can produce highly ... -
Denrimer Entrappted Gold Nanoparticle and Superparamagnetic iron oxide
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2022-11)Abstract Background: The use of theranostic is a new way to achieve imaging and molecular therapy for cancer. The theranostic agent consists of two important parts, including creator section of image contrast and therapeutic ... -
Determination Diagnostic Characteristics of Glioma Grading using Radiomics Analysis of Brain Magnetic Resonance Images
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2021-09)Purpose: Grading is one of the challenges in gliomas diagnosis and treatment. This study aims to evaluate the diagnostic performance of machine-learning based radiomics approach in grading of gliomas in an accurate and ... -
Effect of neodymium doping to oleic acid coated gadolinium oxide nanoparticles on magnetic resonance imaging contrast
(Tabriz University of Medical Sciences Faculty of Paramedical School, 2019)Introduction: Magnetic resonance imaging (MRI) provides improvement of the anatomical and physiological studies in medical imaging field. Although new imaging techniques and sequences have been introduced and applied in ... -
Establishment of diagnostic reference levels for common computed tomography examinations for adults in northwest IRAN
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2024-09)Abstract: Objective: This study aims to estimate organ dose and cancer risks, establish region-specific diagnostic reference levels (DRLs), and determine achievable doses (ADs) for common CT procedures in adults in the ... -
Evaluation of sensitivity, specificity and diagnostic accuracy of MRI image of proton density weight along with T1 and T2 weight images in intervertebral disc herniation and its comparison with routine T1 and T2 weight images
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2021-01)ABSTRACT Background and Aim: Disc herniation is the main causes of back pain with the origin of spinal cord. Although MRI is the preferred method with high diagnostic sensitivity, definitive diagnosis based on MRI image ... -
Gadolinium - graphene oxide - alginate nanocomposite as a contrast agent for magnetic resonance imaging
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2019-04)Abstract Introduction: Magnetic Resonance Imaging (MRI) is a non-ionic, non-invasive and high spatial resolution method, but low sensitivity is its limitations. Contrast materials are used to improve the contrast and ... -
Hippocampus segmentation in magnetic resonance images of Alzheimer's patients using computer deep learning method
(Tabriz university of medical sciences, faculty of paramedicine, 2021-06-29)Abstract Background: Alzheimer’s disease is a progressive neurodegenerative disorder and the main cause of dementia in aging. Hippocampus is prone to the changes in the early stages of Alzheimer's disease. Detection ... -
Improvement of Simulation CT Imaging Protocol to Increase Accuracy in Determining Therapeutic Volumes of Soft Tissue Tumors
(Tabriz University of Medical Sciences, Faculty of Paramedical Sciences, 2020-04-13)Abstract Objective: In many cases, standard diagnostic CT scans used to treatment planning of soft tissue tumors. These protocols provide appropriate images for diagnostic purposes. The purpose of this study is to evaluate ... -
In vitro study of grape sap and lemon mix as MR cholangiopancreatography contrast agent and its effect on signal to noise ratio of routin pulse sequences of the procedure
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2019-01)Abstract Introduction: Signal suppression of the gastrointestinal tract fluids in magnetic resonance cholangiopancreatography (MRCP) has been performed using various natural and chemical substances with the different ... -
Investigation of the Changes of the Brain Effective Connectivity Network through Olfactory Training and Rehabilitation in the patient with Hyposmia Disorder, using Functional Magnetic Resonance Imaging (fMRI)
(Tabriz University of Medical Sciences, Faculty of Paramedical School, 2020-09-30)Introduction: we investigated if and how the olfactory training (OT) scheme has effects on resting-state effective connectivity among piriform cortex, amygdala (AMY), orbitofrontal cortex (OFC), insula, and cingulate cortex, ... -
Magnetic resonance imaging and 5-fluorouracil drug delivery properties of clay-polyethylene glycol coated iron oxide nanoparticles
(2024-12)Purpose: Combining magnetic resonance imaging (MRI) contrast agent as a diagnostic component and anticancer drug as a therapeutic component in a nanosystem allows for simultaneous imaging and anticancer drug delivery. ... -
Magnetic resonance imaging and doxorubicin loading properties of folic acid coated gadolinium/13X zeolite nanocomposite
(, Tabriz University of Medical Sciences Faculty of Paramedical School, 2019-09-21)ABSTRACT Background: Magnetic resonance imaging (MRI) nanosystems have been attracted much attention for tumor targeting purposes. The aim of the present in vitro study was consideration of the MRI properties and doxorubicin ... -
Optimization of coronary computed tomograghy angiography protocol with dose reduction in patients with different body mass index
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2022-09)Abstract Background: Reducing the radiation dose in coronary computed tomography angiography (CCTA), while maintaining the image quality, has attracted a lot of interest. This study aims to optimize the CCTA protocol using ... -
Optimization of thoracic CT scan protocol in lung cancer screening by further reducing patient dose while maintaining image quality
(Tabriz university of medical sciences, Faculty of Paramedical sciences, 2021-07)Abstract Introduction & Objective: Nowadays there has been a growing demand for low dose CT protocols. CT has a critical role in the management of the diagnosis chain of pulmonary disease, especially in lung cancer ... -
T1 و T2 در بیماری فتق دیسک بین مهرهای و مقایسه آن با تصاویر روتین وزن T1 و T2 ارزیابی حساسیت ، ویژگی و دقت تشخیصی تصویر ام آر آی وزن دانسیته پروتونی به¬همراه تصاویر وزن
(دانشگاه علوم پزشکی تبریز، دانشکده پیراپزشکی, 1400-06)چکیده فارسی زمینه و هدف: فتق دیسک یکی از دلایل عمده دردهای با منشا ستون فقرات می باشد. هرچند تصویربرداری تشدید مغناطیسی روش ترجیحی با حساسیت تشخیصی بالا برای به تصویر کشیدن فتق دیسک است، اما تشخیص قطعی بر اساس تفسیر ... -
بخش بندی هیپوکامپ در تصاویر تشدید مغناطیسی بیماران آلزایمری با استفاده از روش یادگیری عمیق کامپیوتری
(دانشگاه علوم پزشکی تبریز، دانشکده پیراپزشکی, 1400-03)چکیده مقدمه: بیماری آلزایمر یک بیماری با تخریب عصبی پیشرونده میباشد که علت اصلی زوال عقل یا دیمانس در پیری است. در مراحل اولیه بیماری آلزایمر ناحیه هیپوکامپ دچار تغییراتی می شود و حجم آن کاهش می یابد. بررسی تغییرات ناحیه ... -
بررسی برون تنی ترکیب شیره انگور و لیمو به عنوان ماده کنتراست آر کلانژیوپانکراتوگرافی و تاثیر آن در نسبت سیگنال به نویز تصاویر حاصل از سکانس های متداول این آزمون
(دانشگاه علوم پزشکی تبریز، دانشکده پیراپزشکی, 1398-10)خلاصه فارسی مقدمه: برای سرکوب کردن سیگنال مایعات موجود در قسمت فوقانی سیستم گوارشی در تصویر برداری از کیسه صفرا و مجاری صفراوی و پانکراتیک، (MRCP) از مواد طبیعی و مصنوعی گوناگونی استفاده شده و این کار توسط توالی پالسی ... -
بررسی تغییرات شبکه ارتباطات مؤثر مغزی در اثر بازتوانی بویایی در بیماران با مشکل بویایی ناشی از تروما با استفاده از تصویربرداری تشدید مغناطیسی عملکردی
(دانشگاه علوم پزشکی و خدمات بهداشتی درمانی تبریز ، دانشکده پیراپزشکی, 1399-06)خلاصه فارسی مقدمه: در این مطالعه تاثیر برنامه آموزش بویایی روی شبکه ارتباطات موثر پنج ناحیه ی مغزی که جز نواحی با بیشترین احتمال نقش در فرآیندهای مرتبط با بویایی هستند، بررسی شد. هدف: بررسی تغییرات شبکه ارتباطات موثر ...