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Registration and Summation of Respiratory-Gated or Breath-Hold PET Images Based on Deformation Estimation of Lung from CT Image
Joint Authors
Haneishi, Hideaki
Kanai, Masayuki
Tamai, Yoshitaka
Sakohira, Atsushi
Suga, Kazuyoshi
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-19
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Lung motion due to respiration causes image degradation in medical imaging, especially in nuclear medicine which requires long acquisition times.
We have developed a method for image correction between the respiratory-gated (RG) PET images in different respiration phases or breath-hold (BH) PET images in an inconsistent respiration phase.
In the method, the RG or BH-PET images in different respiration phases are deformed under two criteria: similarity of the image intensity distribution and smoothness of the estimated motion vector field (MVF).
However, only these criteria may cause unnatural motion estimation of lung.
In this paper, assuming the use of a PET-CT scanner, we add another criterion that is the similarity for the motion direction estimated from inhalation and exhalation CT images.
The proposed method was first applied to a numerical phantom XCAT with tumors and then applied to BH-PET image data for seven patients.
The resultant tumor contrasts and the estimated motion vector fields were compared with those obtained by our previous method.
Through those experiments we confirmed that the proposed method can provide an improved and more stable image quality for both RG and BH-PET images.
American Psychological Association (APA)
Haneishi, Hideaki& Kanai, Masayuki& Tamai, Yoshitaka& Sakohira, Atsushi& Suga, Kazuyoshi. 2016. Registration and Summation of Respiratory-Gated or Breath-Hold PET Images Based on Deformation Estimation of Lung from CT Image. Computational and Mathematical Methods in Medicine،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1100246
Modern Language Association (MLA)
Haneishi, Hideaki…[et al.]. Registration and Summation of Respiratory-Gated or Breath-Hold PET Images Based on Deformation Estimation of Lung from CT Image. Computational and Mathematical Methods in Medicine No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1100246
American Medical Association (AMA)
Haneishi, Hideaki& Kanai, Masayuki& Tamai, Yoshitaka& Sakohira, Atsushi& Suga, Kazuyoshi. Registration and Summation of Respiratory-Gated or Breath-Hold PET Images Based on Deformation Estimation of Lung from CT Image. Computational and Mathematical Methods in Medicine. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1100246
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1100246