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Updated: Jul 16, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
Published on: December 9, 2021
[The evaluation of lower limb arteriopathy by multidetector computed tomography compared with digital subtraction
M D Ferrer1, A J Revert, Y Pallardó
1Servicio de Radiología, Hospital de la Ribera, Alzira, Valencia, España. mferrer@hospital-ribera.com
Objective:
To evaluate the diagnostic efficacy of multidetector computed tomography angiography (MDCTA) in lower limb arteriopathy (LLA) by comparing it with digital subtraction angiography (DSA).
Material And Methods:
Twenty-four patients with LLA were studied. All patients underwent MDCTA (four detectors) and DSA, with double reading between the two techniques. Vascular territories were divided to facilitate analysis. Sensitivity (S), specificity (Sp), prevalence, positive and negative predictive values (PPV, PNV), and concordance (Kappa test) were evaluated. In third-portion arteries, the diagnostic performance of MDCTA was evaluated using an ROC curve.
Results:
MDCTA study to evaluate arterial pathology showed: Lower sensitivity in the study of the internal iliac artery (S: 0.65 and 0.71) with Sp 0.94 and 1. In the other vascular territories, S approached 1, with a slight decrease in Sp. Concordance with DSA was very high (kappa between 0.62 and 1) in all of the territories studied. MDCTA showed greater vessel longitude than DSA. In the third portion, the best diagnostic performance (ROC) was obtained in the reading of pathological vessels.
Conclusion:
MDCTA was highly reliable in the study of LLA, with high concordance with DSA. In tortuous vessels, MDCTA depicted the lesions poorly; however, in straight vessels and third-portion vessels, MDCTA showed more vascular segments.
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