نتایج جستجو برای: ct angiography
تعداد نتایج: 171517 فیلتر نتایج به سال:
Computed tomography (CT) is capable of comprehensively assessing the heart in order to provide information on anatomy, function, perfusion and viability. CT coronary angiography can assess both the coronary artery lumen and the characteristics of atherosclerotic plaques. CT myocardial perfusion imaging can provide additional information compared to CT coronary angiography by highlighting areas ...
Technological breakthroughs in the 1990s have given rise to an exciting advance in medical imaging: spiral computed tomography (CT) remarkable speed and volumetric data acquisition set spiral CT apart from conventional CT. These advantages have improved the detection rates for laryngeal, thoracic, hepatic, pancreatic, and renal disease. Moreover, spiral CT technology has spawned a new vascular ...
Lower-extremity computed tomographic (CT) angiography (ie, peripheral CT angiography) is increasingly used to evaluate patients with peripheral arterial disease. It is therefore increasingly important for all vascular specialists to become familiar with the strengths and limitations of this new technique. The aims of this review are to explain the principles of scanning and injection technique ...
Chest radiography, conventional computed tomography (CT), multidetector CT angiography, and conventional thoracic angiography are all useful in assessing patients with hemoptysis. In this paper we outline our approach to assessing and treating these patients.
OBJECTIVE To investigate the clinical applications of coronary CT angiography in patients with suspected coronary artery disease and identify factors that affect CT findings. METHODS Medical records of patients suspected of coronary artery disease over a period of 12 months from a tertiary teaching hospital were retrospectively reviewed. Patient age, sex (male/female), duration of symptoms an...
When evaluating vascular supply, a combined angiography and CT (angio-CT) system provides more accurate vascular anatomy than digital subtraction angiography. To the best of our knowledge, however, the application for intracranial tumors has not been described. We herein describe a technique of an angio-CT system for diagnosis of vascular anatomy of the feeding artery for preoperative embolizat...
Case Description- A 13 years old neutered female spitz dog was presented to the Small Animal Veterinary Teaching Hospital, University of Tehran for appearance of a soft tissue mass in the interscapular region in about 9 months ago with a progressive increase in the size of the mass.Clinical Finding- The mass was solid, cold and non-painful in physical examination. Radiography, Computed to...
Collateral circulation plays an important role in protecting brain tissue from ischemic damage acute cerebral artery occlusion, and various imaging modalities are used to evaluate collateral circulation. Angiographic techniques, such as digital subtraction angiography multiphase computed tomography (CT) angiography, directly show Meanwhile, hyperintense vessels on f luid-attenuated inversion re...
Background: A coronary artery fistula (CAF) is an aberrant vascular contact of arteries with cardiac chambers or any section the pulmonary systemic circulation, which accounts for 0.3% congenital heart disorders. CAFs have been observed to be as common 0.9% at computed tomographic (CT) angiography, greater than previously estimated prevalence 0.002 – invasive angiography.
 Case Summary: 76...
The usefulness of CT and angiography for predicting the final ischemic brain damage resulting from supratentorial ischemic stroke was evaluated in 36 patients. CT was performed within 4 hr and angiography within 6 hr after the onset of symptoms. CT was used to assess the site and size of parenchymal brain damage and angiography was used to evaluate the cerebral circulation. A 3-month follow-up ...
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