Treating coronary artery disease in bifurcation lesions presents many practical challenges. Developing specific devices and procedures may improve results. In order to further understand angiographic features, a set of healthy bifurcations were measured evaluated develop models predict carina diameter tapering length for new balloon forming system

BACKGROUND AND PURPOSE Novel angiographic grading scales for the assessment of intracranial aneurysms treated with flow-diverting stents have been recently developed because previous angiographic grading scales cannot be applied to these aneurysms. The purpose of this study was to evaluate the inter- and intraobserver variability of the novel O'Kelly Marotta grading scale, which was developed s...

BACKGROUND AND PURPOSE Dural arteriovenous shunt (DAVS) is a disease in which abnormal arteriovenous communications develop within the dura. Some case series have suggested DAVS may evolve over time, but the natural history is poorly understood. In this study, we aimed to define the incidence and clinical characteristics of patients with DAVS showing spontaneous angiographic pattern conversion....