Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers
The 47th Annual Conference of the Institute of Systems, Control and Information Engineers
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Registration of Preoperative CT and Intraoperative X-ray Images for Assisting Stent Grafting
Hiroshi IMAMURA, Noriaki IDA, Naozo SUGIMOTO, Shigeru EIHO, Shin-ichi URAYAMA, Katsuya UENO, Kanji INOUE
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Pages 5035

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Abstract
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.
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© 2003 The Institute of Systems, Control and Information Engineers
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