A Monte Carlo Investigation of the Dual Photopeak Window Scatter Correction Method
- Medicinsk strålningsfysik, Lund
Publikation/Tidskrift/Serie: IEEE Transactions on Nuclear Science
Dokumenttyp: Artikel i tidskrift
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.
Results from a Monte Carlo investigation of the dual photopeak window (DPW) scatter correction method are presented for point and extended sources of Tc-99m in both homogeneous and nonhomogeneous attenuating media. The DPW method uses the ratio of counts in two nonoverlapping energy windows within the photopeak region as input to a regression relation. A pixel-by-pixel estimate of the scatter in the summed windows is obtained and subtracted to yield an estimate of the primary. An approximate tenfold decrease in the scatter fraction and an excellent agreement with the shape of the true scatter distribution were observed.
- Radiology, Nuclear Medicine and Medical Imaging
- ISSN: 0018-9499
E-post: michael [dot] ljungberg [at] med [dot] lu [dot] se