抄録
We investigated a registration method between preoperative CT image and intraoperative fluoroscopic images during stent graft placement. In this method, DRR(Digitally Reconstructed Radiograph) are generated by ray-casting of CTA after extracting an aorta region. Subsequently we calculate matching measures between DRR and fluoroscopic images iteratively by changing imaging parameters. The most similar DRR to matching measures is selected. In the clinical application, fluoroscopic image sequence was successfully registered with abdominal CTA.
