A method for correcting the depth-of-interaction blurring in PET cameras
Journal Article
·
· IEEE Transactions on Medical Imaging
- TRIUMF, Vancouver, British Columbia (Canada)
A method is presented for correcting PET images for the blurring caused by variations in the depth-of-interaction in position-sensitive gamma ray detectors. The method uses an empirically determined, tabulated relationship between depth-of-interaction and most probable pulse-height to estimate the unknown depth from the measured pulse-height for each detected gamma ray. In the case of one fine-cut 50 x 50 x 30 mm BGO block detector, the method is shown to improve the detector resolution by 25%, averaged over the 50 x 50 mm face, measured in the geometry corresponding to detection at the edge of the field-of-view. Strengths and weaknesses of the method are discussed and its potential usefulness for improving the images of future PET cameras is assessed.
- OSTI ID:
- 37339
- Journal Information:
- IEEE Transactions on Medical Imaging, Journal Name: IEEE Transactions on Medical Imaging Journal Issue: 1 Vol. 14; ISSN 0278-0062; ISSN ITMID4
- Country of Publication:
- United States
- Language:
- English
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