20 May 2010
Med Sci Monit 2010; 16(1): 43-47 :: ID: 880582
Background: The aim of our study was to assess the sensitivity and accuracy of computed tomography angiography (CTA) for the detection of variable degrees of iliac artery in-stent restenosis compared with digital subtraction angiography (DSA).
Material/Methods: Twenty patients (39 women, 43%; 51 men, 57%) with suspected iliac in-stent restenosis were prospectively evaluated with CTA using a 64-row multidetector CT scanner and DSA examination. The patients’ mean age was 63 ±6 years (range, 56 to 81 years). DSA and CTA studies were performed during one hospital stay. Ninety uncovered implanted commercially available stents were suspected of in-stent restenosis: 14 stainless-steel Express Vascular LD, 26 Wallstent, and 50 nitinol Smart stents. Restenosis in the stented segments were divided into four categories: A – minimal intimal hyperplasia in the stented segment <30%; B – hyperplasia obstructing <50% of the lumen diameter in the stented segment; C – hyperplasia obstructing <99% of the lumen diameter in the stented segment; and D – occluding the intimal hyperplasia in the stented segment.
Result: It was possible to visualize the stent diameter, lumen, and degree of in-stent restenosis. Comparisons between CTA and DSA in-stent restenosis in the B, C, and D groups were identical (sensitivity and specificity were 100%). In group A, the sensitivity was 100%, but the specificity was only 80%.
Conclusions: This study demonstrated that 64-row multidetector CTA is a sensitive and accurate noninvasive vascular imaging investigation to detect in-stent restenosis in iliac arteries. Final evaluation needs routine postprocessing analysis. CTA allows radiologists and surgeon to plan corrective endovascular procedures.
Keywords: Iliac Artery, in-stent restenosis, multidetector-CT-angiography , DSA
Most Viewed Current Articles
31 Dec 1969 : Original articleOutcome of 24 Weeks of Combined Schroth and Pilates Exercises on Cobb Angle, Angle of Trunk Rotation, Chest...
Med Sci Monit Basic Res 2020; 26:e920449
31 Dec 1969 : Original articleAnalysis of Psychological and Sleep Status and Exercise Rehabilitation of Front-Line Clinical Staff in the ...
Med Sci Monit Basic Res 2020; 26:e924085
31 Dec 1969 : Review articleA Southeast Asian Perspective on the COVID-19 Pandemic: Hemoglobin E (HbE)-Trait Confers Resistance Against...
Med Sci Monit Basic Res 2021; 27:e929207
31 Dec 1969 : Clinical ResearchEffects of Cognitive Task Training on Dynamic Balance and Gait of Patients with Stroke: A Preliminary Rando...
Med Sci Monit Basic Res 2020; 26:e925264