| Comparison between 64-row CT angiography and digital subtraction angiography in the study of lower extremities: personal experience. | |
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MedLine Citation:
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PMID: 19774439 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: This study was undertaken to evaluate the potential of 64-row multislice computed tomography (CT) versus digital subtraction angiography (DSA) in detecting significant lesions of lower-extremity inflow and runoff arteries. MATERIALS AND METHODS: Fifty-three patients underwent 64-row multislice CT and DSA over a mean of 36 days. The vascular tree was divided into 33 segments. Three readers independently reviewed the axial CT scans and multiplanar oblique and two- and three-dimensional reconstructions (maximum intensity projection and volume rendering) images to assess degree of stenosis according to four categories: 1 (0%-49% stenosis); 2 (50%-99% stenosis); 3 (occluded); 4 (not evaluable). In all cases, DSA was performed by arterial catheterisation. RESULTS: In 53 patients, 1,440 segments were evaluated (infrarenal aorta and 16 arterial segments for each leg; 42 bilateral studies, 11 unilateral studies). Compared with DSA, CT angiography yielded 97.2% sensitivity, 97% specificity, 92.5% positive predictive value, 98.9% negative predictive value, 97.1% diagnostic accuracy and 95.4% concordance on the degree of stenosis. CONCLUSIONS: Sixty-four-row multislice CT proved to be helpful in detecting haemodynamically significant lesions in peripheral arterial occlusive disease and improved the results obtained with 4- and 16-slice multidetector CT. In addition, owing to the high spatial resolution and rigorous technique, no variations in the data obtained below the knee were detected, overcoming a limitation of earlier generations of CT scanners. |
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Authors:
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S Cernic; F Pozzi Mucelli; A Pellegrin; R Pizzolato; M A Cova |
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Publication Detail:
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Type: Comparative Study; Journal Article Date: 2009-09-22 |
Journal Detail:
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Title: La Radiologia medica Volume: 114 ISSN: 1826-6983 ISO Abbreviation: Radiol Med Publication Date: 2009 Oct |
Date Detail:
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Created Date: 2010-01-21 Completed Date: 2010-02-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0177625 Medline TA: Radiol Med Country: Italy |
Other Details:
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Languages: eng Pagination: 1115-29 Citation Subset: IM |
Affiliation:
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Unit? Clinico Operativa di Radiologia, Universit? degli Studi di Trieste, Ospedale di Cattinara, Strada di Fiume 447, 34149, Trieste, Italy. stefanocernic@gmail.com |
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Angiography / methods* Angiography, Digital Subtraction / methods* Female Humans Image Processing, Computer-Assisted Knee / radiography Leg / radiography Lower Extremity / blood supply, radiography* Male Middle Aged Peripheral Vascular Diseases / radiography* Predictive Value of Tests Radiographic Image Interpretation, Computer-Assisted Retrospective Studies Sensitivity and Specificity Thigh / radiography Tomography, X-Ray Computed / methods* |
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