Characteristics of the PET component of a dedicated breast PET/CT scanner prototype

Yibao Wu, Kai Yang, Nathan Packard, Lin Fu, Jennifer Stickel, Vi Hoa Tran, Jinyi Qi, John M Boone, Simon R Cherry, Ramsey D Badawi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A dedicated breast PET/CT system is being constructed at our institution. In this work, we characterize aspects of the performance of the PET component, and investigate the accuracy of image registration for the PET and CT systems. Energy resolution was determined on a per-crystal basis from a segmented flood image. Reconstructed spatial resolution was determined using a phantom consisting of four point sources at a range of positions. A miniature Derenzo phantom was also imaged for visual inspection of resolution. Data were reconstructed with both FBP and MAP. A registration phantom with fiducial makers was constructed to test image registration accuracy. The overall average energy resolution achieved was 25%. The spatial resolution achieved by FBP reconstruction was 3.8 mm. In the Derenzo phantom experiment, 4.8, 4.0 and 3.2 mm rods were clearly resolved by FBP, and 4.8, 4.0, 3.2 and 2.4 mm were clearly resolved by MAP. The accuracy of registration was measured as 0.30 mm. The results show that PET component of our PET/CT system is yielding reasonable tomographic images, particularly when MAP reconstruction is used. Image registration between the PET and CT systems is effective.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium Conference Record
Pages2335-2339
Number of pages5
Volume4
DOIs
StatePublished - 2007
Event2006 IEEE Nuclear Science Symposium, Medical Imaging Conference and 15th International Workshop on Room-Temperature Semiconductor X- and Gamma-Ray Detectors, Special Focus Workshops, NSS/MIC/RTSD - San Diego, CA, United States
Duration: Oct 29 2006Nov 4 2006

Other

Other2006 IEEE Nuclear Science Symposium, Medical Imaging Conference and 15th International Workshop on Room-Temperature Semiconductor X- and Gamma-Ray Detectors, Special Focus Workshops, NSS/MIC/RTSD
CountryUnited States
CitySan Diego, CA
Period10/29/0611/4/06

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ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

Cite this

Wu, Y., Yang, K., Packard, N., Fu, L., Stickel, J., Tran, V. H., Qi, J., Boone, J. M., Cherry, S. R., & Badawi, R. D. (2007). Characteristics of the PET component of a dedicated breast PET/CT scanner prototype. In IEEE Nuclear Science Symposium Conference Record (Vol. 4, pp. 2335-2339). [4179496] https://doi.org/10.1109/NSSMIC.2006.354382