نتایج جستجو برای: ct scan images
تعداد نتایج: 420213 فیلتر نتایج به سال:
Introduction: Nowadays applying computer in image processing is being improved revolutionary for solving medical images deficiencies. Image features that are analysis in image processing show image information. The aim of the present study was to find correlation between CT- scan and MRI images' features. Materials and Methods: After data acquisition, applying...
introduction: nowadays virtual colonoscopy has become a reliable and efficient method of detecting primary stages of colon cancer such as polyp detection. one of the most important and crucial stages of virtual colonoscopy is colon segmentation because an incorrect segmentation may lead to a misdiagnosis. materials and methods: in this work, a hybrid method based on geometric deformable models...
Introduction: Today, several methods are used for detecting COVID-19 such as disease-related clinical symptoms, and more accurate diagnostic methods like lung CT-scan imaging. This study aimed to achieve an accurate diagnostic method for intelligent and automatic diagnosis of COVID-19 using lung CT-scan image processing techniques and utilize the results of this method as an accurate diagnostic...
Introduction: Today, several methods are used for detecting COVID-19 such as disease-related clinical symptoms, and more accurate diagnostic methods like lung CT-scan imaging. This study aimed to achieve an accurate diagnostic method for intelligent and automatic diagnosis of COVID-19 using lung CT-scan image processing techniques and utilize the results of this method as an accurate diagnostic...
Background & Aim: Measuring the length of kidneys is an important issue in diagnosis and treatment of renal diseases. In various diseases, kidneys become larger or smaller than normal. Ultrasonography is a suitable method for measuring renal length because it is accurate, noninvasive, available and with low cost. Nowadays, multislice spiral CT scanners are widely used for evaluation of rena...
introduction: mandibular fracture is the most common facial bone fracture due to facial trauma. a variety of imagings have been used for diagnosis of mandibular fractures. however, the choice of imaging for diagnosis of mandibular fractures is controversial.present study compares the accuracy of the three most common imaging methods in mandibular fracture diagnosis panoramic radiography, corona...
هدف : در این مطالعه بر آن شده ایم میزان دقت، حساسیت و اختصاصات سونوگرافی اورژانس را در مقایسه با ct scanدر بیماران با ترومای بلانت شکمی بررسی کنیم. مواد و روشها : 200 نفر از بیمارانی که با ترومای بلانت شکم به اورژانس بیمارستانهای دانشگاه آزاد اسلامی تهران مراجعه کرده بودند و سونوگرافی برایشان انجام شد و بنا به تشخیص جراح یا پزشک اورژانس نیاز به ct scan اورژانس شکمی نیز داشتند وارد مطالعه شده و...
Introduction: One of the main steps in the optimization process in diagnostic imaging is the quality control of radiology devices. The usual method of CT scan calibration is used of a phantom. The phantom created a certain weakening for the radiation through which it passes. One of the most suitable methods for quantitative analysis of the resolution and contrast in CT scan im...
objective(s): in this study, we aimed to describe the characteristics of portal vein tumor thrombosis (pvtt), complicating hepatocellular carcinoma (hcc) in contrast-enhanced fdg pet/ct scan. methods: in this retrospective study, 9 hcc patients with fdg-avid pvtt were diagnosed by contrast-enhanced fluorodeoxyglucose positron emission tomography/computed tomography (fdg pet/ct), which is a comb...
Background: The accuracy of reduction of ankle fractures using postoperative plain radiographies (x-ray) remainswidely controversial. Some authors have demonstrated that postoperative computed tomography (CT) scan can beuseful for these patients. In current study, the efficacy of x-rays after fixation of ankle fractures was investigated basedon the CT scan findings.Metho...
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