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CO 2 -based C-arm computed tomography (CACT) of the pelvic arteries: feasibility and diagnostic performance in comparison to CO 2 -angiography in patients with peripheral arterial disease by S Becker, Lena; Dewald, Cornelia LA; Maschke, Sabine K; Werncke, Thomas; Meyer, Bernhard C; Wacker, Frank K; Hinrichs, Jan B is a Medicine article available to read on EtoBox.

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## Background Patients with substantially impaired kidney function and peripheral arterial disease (PAD) underwent comparative CO~2~-based depiction of the pelvic arteries (PAs). ## Purpose To evaluate the feasibility and diagnostic performance of CO~2~-based C-arm computed tomography (CACT) and compare its depiction of PAs with CO~2~-digital subtraction angiography (DSA). ## Material and Methods Fifteen patients (10 men, mean age 70 ± 11 years) with PAD received CO~2~-DSA and CO~2~-CACT of the PAs, depicted from the aorta to femoral arteries. These were divided into nine segments (135 in total) and graded by two independent readers for image quality (IQ; 1 = sufficient, 2 = minimal impairments, 3 = insufficient, 4 = outside field of view) and subsequent stenosis grading (SG; grade 1: normal to grade 4: occlusion), under exclusion of all segments with insufficient IQ. Inter-observer and inter-modality agreement calculation and subsequent consensus reading were performed and correlated to a standard of reference (StOR), representing a modality consensus. ## Results Of 135 segments, 117 showed sufficient IQ, excluding 18 segments (10 CACT, 8 DSA). Inter-observer agreement for IQ and

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Author

S Becker, Lena; Dewald, Cornelia LA; Maschke, Sabine K; Werncke, Thomas; Meyer, Bernhard C; Wacker, Frank K; Hinrichs, Jan B

Publisher

Royal Society of Medicine Press; SAGE Publications; SAGE Publications Inc. (ISSN 0284-1851)

Published

2020

Language

EN

Field

Medicine (Health Sciences)