نتایج جستجو برای: cross sectional imaging
تعداد نتایج: 933962 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE Recently, the diagnostic and therapeutic importance of repeat radiologic imaging in stroke patients has been questioned. The aim of this study was to show the therapeutic and diagnostic consequences of both repeat brain imaging and follow-up vascular imaging in this group of patients. METHODS Neuroradiologic images and reports as well as clinical records of 317 patients...
BACKGROUND In studies where cross-sectional images of coronary arteries obtained with different imaging modalities are compared, the importance of correct co-localization and matching of images along the coronary artery longitudinal axis is obvious. However, it appears neglected that correct spatial orientation of the cross-sectional plane may not be obtainable just by rotating the images to en...
INTRODUCTION Children with cleft lip and palate (CLP) are known to have airway problems. Previous studies have shown that individuals with CLP have a 30% reduction in nasal airway size compared to non-cleft controls. No reports have been found on cross-sectional area and volume of the pharyngeal airway in clefts. Introduction of Cone-Beam CT (CBCT) and imaging software has facilitated generatio...
Evaluating colorectal lesions by means of radiographic imaging continues to play a major role in detecting and staging cancer of the lower gastrointestinal tract. The diagnosis of large bowel lesions namely Colitis, Vascular and Neoplasm had traditionally been made on the basis of barium enema and/or colonoscopy. Cross sectional imaging as Computed tomography scanning (CT) and MRI plays a pivot...
OBJECTIVE To evaluate the accuracy of quantitative three dimensional echocardiography in patients with deformed left ventricles. DESIGN Three dimensional and cross sectional echocardiographic estimates of left ventricular volume and ejection fraction were prospectively compared to those obtained from magnetic resonance imaging. SETTING Echocardiography laboratory of a university hospital. ...
Purpose: Nasal cavity may contain wide variety of masses within, that differs this organ from the rest of the body. Primary nasal cavity masses consist of 0.2% 0.8% of all malignancies. This paper aims to emphasize the main characteristics of different nasal cavity masses on cross-sectional images which may cause symptoms varying from simple nasal obstruction to metastatic invasion. We tried to...
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