Data processing and image reconstruction methods for the HEAD PENN-PET scanner
- Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Radiology
- Univ. of Pittsburgh, PA (United States). Dept. of Radiology
Methods of reconstruction and quantitation are developed for a 3D system and are evaluated on the septa-less HEAD PENN-PET scanner, which has a very large axial acceptance angle ({theta}{sub max} = {+-}28{degree} in the center) and large axial field-of-view of 256 mm. To overcome the difficulties of data storage and reconstruction time with 3D reconstruction, the authors have reduced the size of the 4-D projection matrix required for 3D-RP reconstruction, and compared the results to the Fourier rebinning (FORE) algorithm. Both approaches achieve a favorable tradeoff in data storage requirements, reconstruction time, and accuracy that are suitable for clinical use. The authors have also studied the application of the FORE algorithm to transmission scans acquired with a singles point source ({sup 137}Cs) so that data quantitation can be performed.
- Sponsoring Organization:
- USDOE, Washington, DC (United States); National Insts. of Health, Bethesda, MD (United States)
- DOE Contract Number:
- FG02-88ER60642
- OSTI ID:
- 649395
- Report Number(s):
- CONF-971147--
- Journal Information:
- IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 3Pt2 Vol. 45; ISSN 0018-9499; ISSN IETNAE
- Country of Publication:
- United States
- Language:
- English
Similar Records
Three-dimensional imaging characteristics of the HEAD PENN-PET scanner
An evaluation of exact and approximate 3-D reconstruction algorithms for a high-resolution small-animal PET scanner