Confronto tra angio-TC a 64 strati e angiografia digitale nello studio degli arti inferiori: Esperienza personale

Translated title of the contribution: Comparison between 64-row CT angiography and digital subtraction angiography in the study of lower extremities: Personal experience

S. Cernic, F. Pozzi Mucelli, A. Pellegrin, R. Pizzolato, M. A. Cova

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Translated title of the contributionComparison between 64-row CT angiography and digital subtraction angiography in the study of lower extremities: Personal experience
Original languageItalian
Pages (from-to)1115-1129
Number of pages15
JournalRadiologia Medica
Volume114
Issue number7
DOIs
Publication statusPublished - Oct 2009

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'Comparison between 64-row CT angiography and digital subtraction angiography in the study of lower extremities: Personal experience'. Together they form a unique fingerprint.

Cite this