Compensating respiratory motion in PET image reconstruction using 4D PET/CT

Author

Qiao, Feng ; Pan, Tinsu ; Clark, John W., Jr. ; Mawlawi, Osama R.

Author_Institution

Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX

Volume

5

fYear

2005

fDate

23-29 Oct. 2005

Firstpage

2595

Lastpage

2598

Abstract

Respiratory motion of the patient can cause image blur and inaccurate radioactivity quantification in PET imaging. Gated PET acquisition freezes the motion but suffers in image quality due to insufficient photon statistics. We present in this paper a novel approach that incorporates motion information into the reconstruction process and reconstruct the motion-free image with all data acquired. Computer simulation and phantom study showed good motion compensation capability of this algorithm, with no obvious motion artifacts visible on the reconstructed image

Keywords

image reconstruction; medical image processing; motion compensation; phantoms; pneumodynamics; positron emission tomography; 4D PET/CT; PET image reconstruction; motion-free image; phantom; respiratory motion compensation; Computed tomography; Computer simulation; Image quality; Image reconstruction; Imaging phantoms; Motion compensation; Optical imaging; Positron emission tomography; Reconstruction algorithms; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2005 IEEE

Conference_Location

Fajardo

ISSN

1095-7863

Print_ISBN

0-7803-9221-3

Type

conf

DOI

10.1109/NSSMIC.2005.1596869

Filename

1596869