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 language | English (US) |
|---|---|
| Title of host publication | IEEE Nuclear Science Symposium Conference Record |
| Pages | 2335-2339 |
| Number of pages | 5 |
| Volume | 4 |
| DOIs | |
| State | Published - 2007 |
| Event | 2006 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 2006 → Nov 4 2006 |
Other
| Other | 2006 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 |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 10/29/06 → 11/4/06 |
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ASJC Scopus subject areas
- Computer Vision and Pattern Recognition
- Industrial and Manufacturing Engineering
Cite this
Characteristics of the PET component of a dedicated breast PET/CT scanner prototype. / Wu, Yibao; Yang, Kai; Packard, Nathan; Fu, Lin; Stickel, Jennifer; Tran, Vi Hoa; Qi, Jinyi; Boone, John M; Cherry, Simon R; Badawi, Ramsey D.
IEEE Nuclear Science Symposium Conference Record. Vol. 4 2007. p. 2335-2339 4179496.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Characteristics of the PET component of a dedicated breast PET/CT scanner prototype
AU - Wu, Yibao
AU - Yang, Kai
AU - Packard, Nathan
AU - Fu, Lin
AU - Stickel, Jennifer
AU - Tran, Vi Hoa
AU - Qi, Jinyi
AU - Boone, John M
AU - Cherry, Simon R
AU - Badawi, Ramsey D
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=38649120875&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38649120875&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2006.354382
DO - 10.1109/NSSMIC.2006.354382
M3 - Conference contribution
AN - SCOPUS:38649120875
SN - 1424405610
SN - 9781424405619
VL - 4
SP - 2335
EP - 2339
BT - IEEE Nuclear Science Symposium Conference Record
ER -