DIGITAL SUBTRACTION ANGIOGRAPHY (DSA) BY INTRAARTERIAL INJECTION
نویسندگان
چکیده
منابع مشابه
Digital subtraction cerebral angiography by intraarterial injection: comparison with conventional angiography.
For 4 months, a prototype digital subtraction system was used to obtain images of the cerebral vasculature after intraarterial contrast injections. In 12 instances, the intraarterial injections were recorded with both a digital subtraction unit and conventional direct magnification film-screen system. The digital subtraction and conventional film subtraction images were compared and graded for ...
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In the neuroradiologic evaluation of 118 patients using intraarterial digital subtraction angiography definite advantages and disadvantages were defined. Advantages include reduction of contrast medium volume, catheter time, and patient risk and discomfort. It also aids in angiographic planning. The paramount disadvantage is less spatial resolution compared with conventional film angiography.
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Temporal/energy (hybrid) subtraction is a technique for removing soft-tissue motion artifact from digital subtraction angiograms. The diagnostic utility of hybrid subtraction for i.v. and intraarterial angiography was assessed in the first 9 months of operation of a dedicated production system. In i.v. carotid arteriography (N = 127), hybrid subtraction (H) provided a double-profile projection ...
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The intraarterial digital subtraction angiography (DSA) of 52 patients with hepatic tumors was retrospectively reviewed. In 18 patients, intraarterial DSA was compared with conventional angiography. With DSA, the displacement of arteries, arterial encasement and tumor vessels were equally well identified on comparison with conventional angiography. DSA was superior to conventional angiography i...
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Comparisons between digital subtraction angiography and conventional angiography have frequently been made in the radiologic literature, and the high quality and several advantages of the former have been reported. In this study, 101 patients with intracranial aneurysms were examined only by intraarterial digital subtraction angiography; no conventional angiography was used. High-quality images...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1984
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00001371574