冠動脈造影像のパノラマ動画像の作成(<特集>生体医工学シンポジウム2005)

概要

論文の詳細を見る
In this study, we present a new method for constructing panorama images from a series of coronary cineangiograms. The obtained panorama images enable us to observe a complete coronary at a glance. In order for medical staff to take angiocardiographic images, one often has to move a patient's bed in order to catch the vessels to be visualized in the viewing field after injecting a contrast medium. Moreover, those vessels are usually inconsistently contrasted because it takes time for the contrast medium to reach the end of every vessel. In this study, we present a method that reduces such inconvenience and constructs useful coronary images for clinical diagnosis. First, we roughly estimate the heartbeat cycle and the bed movement using a spatiotemporal image generated from a series of original coronary cineangiograms. Next, we group each angiocardiogram frame based on heartbeat phase and estimate the bed movement spatiotemporally. Panorama images can then be obtained by merging a few frames in the same heartbeat phase with a composite background image. This makes it possible to easily observe a contrasted, complete coronary in a still viewing field.
社団法人日本生体医工学会の論文
2006-03-10