نتایج جستجو برای: mdct
تعداد نتایج: 2439 فیلتر نتایج به سال:
BACKGROUND Due to the low sensitivity of plain radiography, the diagnosis of early stage ankylosing spondylitis (AS) is often difficult since many patients do not meet the radiographic criteria. The objective of our study was to investigate the diagnostic value of performing multidetector computed tomography (MDCT) of the sacroiliac (SI) joint in the evaluation of AS patients. METHODS Thirty ...
INTRODUCTION Endoscopic ultrasonography (EUS) is the gold standard technique in loco-regional staging of gastric adenocarcinoma (GAC). Nevertheless, the introduction of multidetector-row computed tomography (MDCT) allows accurate studies to be performed. OBJECTIVE To compare the diagnostic yield of EUS and MDCT in loco-regional preoperative staging of gastric adenocarcinoma. MATERIAL AND ME...
نمایش های تُنُک، ابزار قدرتمندی را در آنالیز و پردازش سیگنال های گفتار و صوت ایجاد کرده اند و تنکی به صورت یک مفهوم کلیدی و مهم در زمینه های مختلفی چون جداسازی کور منابع، فشرده سازی، نمونه برداری و آنالیز سیگنال در آمده است. هدف از این پایان نامه، بررسی تنکیِ سیگنال گفتار در حوزه های مختلف و استفاده از نتایجِ این بررسی در مسأله ی بهسازی گفتار است. با توجه به اینکه در کاربردهای مختلف، تعابیر متفاوت...
Background: Although coronary calcium assessment has been demonstrated to be strongly associated with significant coronary artery disease (CAD) and future cardiac events, it is still not clear whether zero calcium on CT scan can exclude significant CAD and eliminate the need for further multi-detector computed tomography (MDCT) coronary angiography (CCTA). The purpose of this study is to test t...
This article explains the significant role of morphological and functional multidetector computer tomography (MDCT) in combination with imaging postprocessing algorithms served as a problem-solving tool and noninvasive surrogate biomarker to effectively improve hepatic diseases characterization, detection, tumor staging and prognosis, therapy response assessment, and novel drug discovery progra...
PURPOSE To compare the diagnostic performance of multirow-detector computed tomography (MDCT) and magnetic resonance imaging (MRI) in the differentiation of intraductal papillary mucinous neoplasms (IPMNs) from other pancreatic cystic masses. MATERIALS AND METHODS A total of 53 patients with pathologically proven pancreatic cystic lesions who had undergone MDCT and MRI were included in this s...
BACKGROUND Leading-edge technology such as magnetic resonance imaging (MRI) or computed tomography (CT) often reveals mammographically and ultrasonographically occult lesions. MRI is a well-documented, effective tool to evaluate these lesions; however, the detection rate of targeted sonography varies for MRI detected lesions, and its significance is not well established in diagnostic strategy o...
BACKGROUND/AIMS The diagnosis and treatment plan for hepatocellular carcinoma (HCC) can be made from radiologic imaging. However, lesion detection may vary depending on the imaging modality. This study aims to evaluate the sensitivities of hepatic multidetector computed tomography (MDCT), magnetic resonance imaging (MRI), and digital subtraction angiography (DSA) in the detection of HCC and the...
BACKGROUND During the modified Bentall surgery (aortic root replacement), a cuff of native aorta is implanted, together with the coronary ostium, into the aortic graft. Multi-detector computed tomography (MDCT) imaging can accurately assess the coronary ostial anastomosis site post-surgery. In this study, we assessed the feasibility of imaging the coronary ostial anastomosis site using transtho...
BACKGROUND Lung cancer has been the main concern of the cancer-related deaths worldwide. Non-small cell lung cancer (NSCLC) is reported the most common subtype of lung cancer. Initial staging of NSCLC is highly associated with the choice of treatment and prognosis of the patients. This study aims to prospectively compare the diagnostic efficacies of 64-multidetector-row computed tomography (MDC...
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