NDLI: Nonrigid registration for evaluating locoregional therapy of hepatocellular carcinoma

Content Provider	IEEE Xplore Digital Library
Author	Chunhua Dong Seki, T. Inoguchi, R. Chen-Lun Lin Xianhua Han Yen-wei Chen
Copyright Year	2013
Description	Author affiliation: Kansai Med. Univ., Osaka, Japan (Seki, T.; Inoguchi, R.) \|\| Coll. of Inf. Sci. & Eng., Ritsumeikan Univ., Kusatsu, Japan (Chunhua Dong; Chen-Lun Lin; Xianhua Han; Yen-wei Chen)
Abstract	The assessment of the treated margin with locoregional therapy (LT), for hepatocellular carcinoma (HCC), is the common method for predicting HCC recurrence in most hospital. However, tumors sometimes cannot be removed clearly with LT in limited conditions. The therapeutic efficiency of HCC is often evaluated by comparing 2D fusion images of computed tomography (CT) or magnetic resonance imaging (MRI) between the preoperation and the postoperation. However, judgment about whether the tumors exist in the treated margin after LT by using 2D slices sometimes is difficult. It is desirable to develop a suitable image registration algorithm to automatically align the two volumes in order to transform the treated margin of the postoperative volume to the tumor of the preoperative volume to assess the therapeutic efficiency after treatment of HCC. With taking these into consideration, this paper proposed an automatic 3D fusion imaging approach for medical image by using the nonrigid registration method that aligning an ablative margin - that is the treated margin after LT, onto the locations of HCC. In our registration algorithm, a rigid global transformation combined with localized B-spline is used to estimate the significant nonrigid motions of the liver between before and after LT. Our proposed approach can ensure the feasibility, the accuracy and the efficacy to assess the treated margin for HCC. Furthermore, this method can be adapted to register multi-modality medical images. We demonstrate the effectiveness of our proposed method by comparing the difference criterions of fusion evaluation on medical images. The results clearly indicate that our method extremely useful in the evaluation of the treated margin, in addition, it remain the motion and local deformation of the volume.
Sponsorship	IEEE Eng. Med. Biol. Soc.
Starting Page	811
Ending Page	816
File Size	596274
Page Count	6
File Format	PDF
e-ISBN	9781479927616
DOI	10.1109/BMEI.2013.6747052
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Three-dimensional displays 3D fusion imaging Computed tomography Liver Medical treatment Locoregional therapy Back Hepatocellular carcinoma Splines (mathematics) Nonrigid registration Tumors
Content Type	Text
Resource Type	Article

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