نتایج جستجو برای: magnification
تعداد نتایج: 6513 فیلتر نتایج به سال:
A 66-year-old man presented with a white blood cell count of 62.63 10 /L. Peripheral blood (PB) smear showed 80% smallto medium-sized atypical lymphoid cells with irregular to cleaved (panel A; original magnification 3500, Wright-Giemsa stain) or binucleated nuclear contours, and slightly condensed chromatin (panel B; original magnification 31000, Wright-Giemsa stain). Bone marrow (BM) aspirate...
An image restoration approach based on a Bayesian maximum entropy method (MEM) has been applied to a radiological image deconvolution problem, that of reduction of geometric blurring in magnification mammography. The aim of the work is to demonstrate an improvement in image spatial resolution in realistic noisy radiological images with no associated penalty in terms of reduction in the signal-t...
PURPOSE Renal transplantation is associated with frequent gastrointestinal complications. Intestinal metaplasia is a feature of atrophic gastritis whereas the diagnosis of Barrett's esophagus is based on histological demonstration of specialized metaplasia. Both conditions are associated with increased risk of adenocarcinoma. The aim of the present study was to assess whether magnification endo...
Advances in microfocus X-ray tube design together with the availability of high resolution charge coupled device (CCD) detectors have led to the introduction of high magnification digital specimen cabinets for the examination of tissue samples. This paper explores the effect that the high magnification geometry permitted by such units has upon image quality in terms of phase contrast edge enhan...
Aim. Little is known about the usefulness of narrow band imaging (NBI) for surveillance of patients after chemoradiotherapy for esophageal neoplasia. Its usefulness in detecting esophageal squamous cell carcinoma (SCC) or high-grade intraepithelial neoplasia (HGIN) in these patients was retrospectively compared to Lugol chromoendoscopy. Patients and Methods. We assessed the diagnostic ability o...
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