منابع مشابه
Extraction of Coronary Arterial Tree Using Cine X-ray Angiograms
Coronary angiography is still the most common modality for physicians to assess the severity of vessel narrowing or stenosis during percutaneous coronary intervention procedure. Accurate quantitative analysis of coronary arteries in digital angiographic images is valuable and important to clinical needs. Computerassisted extraction of a set of major arteries or the entire coronary arterial tree...
متن کاملSensitivity and Specifity of Plain X-Ray in Diagnosis of Acute Sinusitis
ABSTRACT With considering of high prevalence of sinusitis and variable imaging modalities in diagnosis of it, we decided to evaluate sensitivity and specifity of plain x-ray in diagnosis of acute sinusitis. In this researeh , CTscan and plain x-ray findings of 83 patients with suspected acute sinusitis (by otorhinolayrngologist) - with considering of ethical and economic notices - were compar...
متن کاملImpact of Photon Spectra on the Sensitivity of Polymer Gel Dosimetry by X-Ray Computed Tomography
Introduction: The purpose of the current study was to investigate the effect of X-ray spectra on the sensitivity of a polymer gel dosimeter imaged with a conventional computed tomography (CT) scanner. Material and Methods: The whole process of CT imaging of an irradiated polymer gel was simulated by MCNPX Monte Carlo (MC) code. The imaging of polyacrylamide gel was accomplished by means of a co...
متن کاملX-ray film of the month.
X-ray examination of the chest revealed a large circumscribed area of absent aeration in the central portion of the left lung which extended from the axillary portion of the chest to the hilum, merging with the mediastinal structures. In the lateral projection, this circumscribed area was superimposed over the heart. An aneurysm could not be excluded; the area of diminished aeration was thought...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1991
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00003324076