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Literature DB >> 23377533

WHOLE BODY NONRIGID CT-PET REGISTRATION USING WEIGHTED DEMONS.

J W Suh¹, Oh-K Kwon, D Scheinost, A J Sinusas, Gary W Cline, X Papademetris.

Abstract

We present a new registration method for whole-body rat computed tomography (CT) image and positron emission tomography (PET) images using a weighted demons algorithm. The CT and PET images are acquired in separate scanners at different times and the inherent differences in the imaging protocols produced significant nonrigid changes between the two acquisitions in addition to heterogeneous image characteristics. In this situation, we utilized both the transmission-PET and the emission-PET images in the deformable registration process emphasizing particular regions of the moving transmission-PET image using the emission-PET image. We validated our results with nine rat image sets using M-Hausdorff distance similarity measure. We demonstrate improved performance compared to standard methods such as Demons and normalized mutual information-based non-rigid FFD registration.

Entities: Chemical Disease Species

Year: 2011 PMID： 23377533 PMCID： PMC3557845 DOI： 10.1109/isbi.2011.5872622

Source DB: PubMed Journal: Proc IEEE Int Symp Biomed Imaging ISSN： 1945-7928

6 in total

1. Nonrigid registration using free-form deformations: application to breast MR images.

Authors: D Rueckert; L I Sonoda; C Hayes; D L Hill; M O Leach; D J Hawkes
Journal: IEEE Trans Med Imaging Date: 1999-08 Impact factor: 10.048

2. Comparison of mutual information-based warping accuracy for fusing body CT and PET by 2 methods: CT mapped onto PET emission scan versus CT mapped onto PET transmission scan.

Authors: Joseph Skalski; Richard L Wahl; Charles R Meyer
Journal: J Nucl Med Date: 2002-09 Impact factor: 10.057

1 in total

1. Experimental Evaluation of a Deformable Registration Algorithm for Motion Correction in PET-CT Guided Biopsy.

Authors: Rahul Khare; Guillaume Sala; Paul Kinahan; Giuseppe Esposito; Filip Banovac; Kevin Cleary; Andinet Enquobahrie
Journal: IEEE Nucl Sci Symp Conf Rec (1997) Date: 2013 Oct-Nov

1 in total

WHOLE BODY NONRIGID CT-PET REGISTRATION USING WEIGHTED DEMONS.

1. Nonrigid registration using free-form deformations: application to breast MR images.

2. Comparison of mutual information-based warping accuracy for fusing body CT and PET by 2 methods: CT mapped onto PET emission scan versus CT mapped onto PET transmission scan.

3. Automated 3-dimensional elastic registration of whole-body PET and CT from separate or combined scanners.

4. A three-dimensional registration method for automated fusion of micro PET-CT-SPECT whole-body images.

5. Object matching algorithms using robust Hausdorff distance measures.

6. Multimodality image registration by maximization of mutual information.

1. Experimental Evaluation of a Deformable Registration Algorithm for Motion Correction in PET-CT Guided Biopsy.