CSE detctor shows hot spots in center (or corner) of all PMT tubes on low count studies
Symptom
CSE detctor shows hot spots in center (or corner) of all PMT tubes on low count studies One detector of an MG camera has what appears to be a dot or hot spot in the center (or corner) of the tubes on low count studies. This artifact shows up when there is a count rate of around 50 cps. CSE detctor shows hot spots in center (or corner) of all PMT tubes on low count studies One detector of an MG camera has what appears to be a dot in the center (or corner) of the tubes on low count studies. This artifact shows up when there is a count rate of around 50 cps. Clinically, the defect was noted on a 24hr delay bone scan acquisition. Acquire Background acquistion with Collimator mounted and no sources present, check for hots spots and lines in image as below. Note that probem did not occur when acquired without collimator, occurs only during very low count rates. Second Example:
Applies to
- Models
- Millennium
- Product
- MG/MC/Myosight Millennium MG/MC Millennium MyoSIGHT MPR/MPS Millennium MPR Millennium MPS
- Component
- *Detector (Imaging Detector) *Detector (Imaging Detector) *Detector (Imaging Detector)
- Area
- Nuclear Medicine
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