Coronary artery calcium detection using flat panel digital cinefluoroscopy: Comparison to coronary artery calcium score assessed with multiple detector computerized tomography

Alexopoulos, Dimitrios; Παπαθανασίου, Μαρία; Kalogeropoulou, Christina; Xanthopoulou, Ioanna; Diamantopoulos, Athanasios; Tsigkas, Grigorios; Davlouros, Periklis; Siablis, Dimitrios

doi:10.1016/j.ijcard.2011.01.072

Cited by 4 publications

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References 31 publications

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“…Generally, the higher the calci cation score (which considers both area and density of lesion calci cation) on CT, the higher the visibility of calci cation on angiography; therefore, higher-density calci cations are more likely to be recognized as BR [8][9][10]. Reportedly, the higher the calci cation score evaluated using CT, the higher the restenosis rate after revascularization [5,11].…”

Section: Discussionmentioning

confidence: 99%

Impact of “black rock” on clinical outcomes after endovascular therapy for de novo calcified femoropopliteal lesions

Mori

Yamawaki

Shirai

et al. 2023

Preprint

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Purpose The relationship between severity of calcification and clinical outcomes after endovascular therapy (EVT) for femoropopliteal lesions is well known. We often encounter dense calcifications in our daily practice, which are darker than normal calcifications on angiography. Accordingly, we named it “black rock” (BR), and investigated its impact on clinical outcomes after EVT. Materials and methods We retrospectively analyzed 677 lesions in 495 patients who underwent EVT for de novo calcified femoropopliteal lesions at our hospital between April 2007 and June 2020. BR is defined as a calcification which is 1 cm or more in length, occupies more than half of the vessel diameter, and appears darker than the body of the femur on angiography. Propensity score matching analysis was performed to compare clinical outcomes between lesions with BR [BR (+) group] and without BR [BR (−) group]. Results A total of 124 matched pairs of lesions were analyzed. Primary patency at 2 years was significantly lower in the BR (+) group than in the BR (−) group (48% vs. 75%, p = .0007). Multivariate analysis revealed that BR [hazard ratio (HR) = 2.23, 95% confidence interval (CI); 1.48–3.38, p = .0001], lesion length (HR = 1.03, 95%CI; 1.00–1.06, p = .0244), and scaffold use (HR = 0.63, 95%CI; 0.42–0.94, p = .0246) were predictors of restenosis. Conclusion BR is independently associated with clinical outcomes after EVT for de novo calcified femoropopliteal lesions. Level of Evidence: Level 4

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