講演名 2006-05-26
3D Image Registration and Its Application to Open-MR Scanner Based Liver Cancer Surgery(一般セッション(3),人の検出・計測・認識)
,
PDFダウンロードページ PDFダウンロードページへ
抄録(和)
抄録(英) A semi-automatic non-rigid registration technique is successfully applied to assist and improve the open configuration magnetic resonance (Open-MR) imaging guided liver cancer surgery in which cancer tissues are coagulated by microwave ablation. Since the Open-MR volumes are obtained in a lower magnetic field (0.5T) and various different surgical conditions, sometimes tumors can not be visualized clearly on them. Combining of CT volumes acquired before surgery, it is possible to identify the tumor's location by application of registration techniques. Since such a registration problem belongs to a non-rigid one considering the easy deformation of livers, free-form deformation (FFD) based registration method is applied. Similarity measurement in registration is normalized mutual information (NMI). In this paper, we use the Parzen-window method based on two 3^ order B-spline kernels to calculate NMI. Additionally, we firstly derive the explicit expression of 1st order derivatives of NMI. Registration accuracy is evaluated by both objective and subjective evaluated methods. Experiments show that the registration is accurate enough (ap1.45mm) for liver cancer surgery given some proper processing steps.
キーワード(和)
キーワード(英) 3D Image Registration / FFD / Computer-aided Surgery
資料番号 PRMU2006-35,MI2006-35
発行日

研究会情報
研究会 PRMU
開催期間 2006/5/19(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
幹事氏名(和)
幹事氏名(英)
幹事補佐氏名(和)
幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 Pattern Recognition and Media Understanding (PRMU)
本文の言語 ENG
タイトル(和) 3D Image Registration and Its Application to Open-MR Scanner Based Liver Cancer Surgery(一般セッション(3),人の検出・計測・認識)
サブタイトル(和)
タイトル(英) 3D Image Registration and Its Application to Open-MR Scanner Based Liver Cancer Surgery
サブタイトル(和)
キーワード(1)(和/英) / 3D Image Registration
第 1 著者 氏名(和/英) / Rui Xu
第 1 著者 所属(和/英)
College of Information Science and Engineering, Ritsumeikan University
発表年月日 2006-05-26
資料番号 PRMU2006-35,MI2006-35
巻番号(vol) vol.106
号番号(no) 73
ページ範囲 pp.-
ページ数 6
発行日