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We investigated whether coronary artery calcium score (CAC) in the target lesion on the multidetector computed tomography angiography (CTA) predicts the addition of the Rotational atherectomy (Rota) during percutaneous coronary intervention (PCI). Lesion CAC on CTA were evaluated with quantitative coronary analysis (QCA) on coronary angiography for predicting the Rota treatment in 114 consecutive patients (165 target lesions) with rst PCI (68 ± 9 years old, females: 17.6%). Rota was added in 8 patients (11 lesions). The lesion length and diameter stenosis on QCA, and lesion length and lesion CAC on CTA were the primary factors associated with the addition of Rota. Using the cut-off value based on receiver operating characteristic analysis, the sensitivity and speci city for predicting the Rota based on QCA was 72.7% in 8 of 11 lesions (vessels) with Rota and the speci city was 74% in 114 of 154 without Rota in the lesion length of ≥ 23 mm (χ= 10.9, p= 0.001), and 54.5% in 6 of 11 lesions with Rota and the speci city was 79.2% in 122 of 154 without Rota in the diameter stenosis of ≥ 83% (χ= 6.6, p= 0.01). Those based on CTA were 90.9% in 10 of 11 lesions with Rota and 77.3% in 119 of 154 without Rota in the lesion length of ≥ 34 mm (χ= 24.1, p< 0.001), and 90.9% in 10 of 11 with Rota and 88.3% in 136 of 154 without Rota in the lesions with CAC ≥ 453 (χ= 45.7, p< 0.001). Lesion CAC on CTA is most predictive of addition of Rota during PCI.

showa university journal of medical sciences

Significance of Coronary Artery Calcium Score in the Target Lesion Evaluated by Multi-detector Computed Tomography for Selecting Treatment of Rotational Atherectomy in Patients with Coronary Artery Disease