Assesment of Carotid Stenosis with CT Angiography and Color Doppler Ultrasonography
نویسندگان
چکیده
منابع مشابه
Quantification of carotid stenosis on CT angiography.
PURPOSE Carotid artery stenosis quantification uses percent diameter ratios from conventional angiography. Multidetector high-speed CT angiography (CTA) allows direct millimeter measurement of carotid stenosis. We hypothesize a linear relationship between millimeter stenosis measurements and derived percent, alleviating cumbersome ratio calculations. METHODS Two neuroradiologists separately r...
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BACKGROUND AND PURPOSE All carotid stenosis ratio methods are based on the inability of digital subtraction angiography to measure in millimeters. Each method has potential flaws. The Carotid Stenosis Index (CSI) was designed to reduce ambiguities of NASCET and ECST ratios. We test this method's ability to correctly estimate carotid stenosis using direct computed tomography angiography millimet...
متن کاملارزیابی و بررسی نتایج حاصل از داپلر فراصوتی در مقایسه با آنژیوگرافی تفریقی دیجیتال در تشخیص تنگ شدگیهای شریان کاروتید داخلی
Introduction: Digital Subtraction Angiography (DSA) is the standard method for detection of carotid artery stenosis. This technique has high radiation dose. With the progress of imaging techniques, noninvasive or minimally invasive methods like the CT angiography, MR angiography and ultrasonography with Doppler or Duplex mode were applicable. This study aimed to evaluate and assesse the results...
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Background: Different diagnostic modalities to investigate atherosclerotic carotid artery disease (ACAD) are nowadays available. The aim of this study was to test the concordance of the findings of the two most widely used diagnostic modalities namely computed tomography angiography (CTA) and doppler ultrasonography (DUS). Material and methods: 29 patients with acute ischemic stroke were subjec...
متن کاملComparison of the carotid stenosis index with CT angiography.
To the Editor: The optimal method for measurement of carotid stenosis remains something of an enigma. Large randomized control trials in symptomatic and asymptomatic carotid stenosis have been based on standardized measurements of carotid stenosis derived from digital subtraction angiography and/or duplex ultrasound. Accordingly, there have been various methods used to measure percent stenosis ...
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ژورنال
عنوان ژورنال: Medical Archives
سال: 2019
ISSN: 0350-199X
DOI: 10.5455/medarh.2019.73.321-325