Triple energy window scatter correction technique in PET
- 1 January 1994
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Medical Imaging
- Vol. 13 (4) , 641-648
- https://doi.org/10.1109/42.363104
Abstract
A practical triple energy window technique (TEW) is proposed, which is based on using the information in two lower energy windows and one single calibration, to estimate the scatter within the photopeak window. The technique is basically a conventional dual-window technique plus a modification factor, which can partially compensate object-distribution dependent scatters. The modification factor is a function of two lower scatter windows of both the calibration phantom and the actual object. In order to evaluate the technique, a Monte Carlo simulation program, which simulates the PENN-PET scanner geometry, was used. Different phantom activity distributions and phantom sizes were tested to simulate brain studies, including uniform and nonuniform distributions. The results indicate that the TEW technique works well for a wide range of activity distributions and object sizes. The comparisons between the TEW and dual window techniques show better quantitative accuracy for the TEW, especially for different phantom sizes. The technique is also applied to experimental data from a PENN-PET scanner to test its practicality.Keywords
This publication has 18 references indexed in Scilit:
- Implementation and testing of the dual photopeak window scatter correction method on a multi-headed SPECT systemPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- The influence of phantom size, shape, and density, and collimator selection on the dual photopeak window scatter correction methodPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- A practical projector-backprojector modeling attenuation, detector response, and scatter for accurate scatter compensation in SPECTPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Correction for scatter using a dual energy window technique with a tomograph operated without septaPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A practical method for position-dependent Compton-scatter correction in single photon emission CTIEEE Transactions on Medical Imaging, 1991
- Cross-plane scattering correction-point source deconvolution in PETIEEE Transactions on Medical Imaging, 1991
- Spatial properties of the scatter response function in SPECTIEEE Transactions on Nuclear Science, 1991
- Object shape dependent scatter simulations for PETIEEE Transactions on Nuclear Science, 1991
- Comparison of dual-window and convolution scatter correction techniques using the Monte Carlo methodPhysics in Medicine & Biology, 1990
- Some physical factors influencing the accuracy of convolution scatter correction in SPECTPhysics in Medicine & Biology, 1989