نتایج جستجو برای: circumferential scanning
تعداد نتایج: 166820 فیلتر نتایج به سال:
Objective To clarify the relationship between the shape and circumferential location of non-circumferential short-segment Barrett's esophagus (SSBE). Methods We examined 3,788 subjects (2,497 males, 1,291 females; mean age 52.4 years) who underwent upper GI endoscopy as part of a detailed medical checkup. The presence of columnar-appearing mucosa ≥10 mm long in the distal esophagus was diagnose...
OBJECTIVE The purpose of this study was to evaluate the reproducibility of measurements of minimal distance from an invasive tumor to the anticipated circumferential resection margin in prediction of depth of extramural tumor spread in patients with rectal cancer. MATERIALS AND METHODS Images from 168 consecutive pelvic MRI examinations of patients with rectal cancer were evaluated by radiolo...
Introduction Increase of mechanical stress in the arterial wall leads to an altered arterial function and structural degeneration. The study of circumferential stress profile across the arterial wall, and change of this profile by functional loss of components can enhance understanding of pathological events in arterial degeneration and disease [Avolio et al. 1998, Loree et al . 1992, Spina et ...
Probe-based confocal laser endomicroscopy (pCLE) is an imaging technique that provides in vivo and real-time endomicroscopic analysis [1,2]. We show images of a duodenal mucous neck cell adenoma growing in the submucosa that was visualized by pCLE. A77-year-oldmanpresentedwith a3-mm protruding lesion in the duodenal blub (●" Fig.1). The lesionwas located on top of a submucosal elevation of appr...
Abstract Background Left ventricular (LV) strain and rate measurements can be derived from routinely acquired cardiovascular magnetic resonance (CMR) cine images by feature tracking techniques. However, the inter-field strength agreement of these techniques is not known. We hypothesised that there would excellent (between 1.5 3 Tesla [T]) for measurement global imaging. Methods Prospective, ran...
BACKGROUND It is unknown whether circumferential strain is associated with prognosis after treatment of aortic stenosis (AS). We aimed to characterise strain in severe AS, using myocardial tagging cardiovascular magnetic resonance (CMR), prior to and following Transcatheter Aortic Valve Implantation (TAVI) and Surgical Aortic Valve Replacement (SAVR), and determine whether abnormalities in stra...
OBJECTIVE Considering past studies on the orthotropic anisotropy of arteries in the circumferential and axial directions, this work aims to experimentally study the anisotropic behaviour of arteries by tensioning multi-directional strips of porcine thoracic aorta. METHODS Histology is first analyzed by staining arterial sections of three orthotropic (axial, circumferential, and radial) planes...
Gaps in the internal elastic lamina (IEL) have been observed in arteries exposed to high blood flow. To characterize the nature and consequences of this change, blood flow was increased in the carotid arteries of 56 adult, male, Japanese white rabbits by creating an arteriovenous fistula between the common carotid artery and the external jugular vein. The common carotid artery proximal to the a...
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