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We describe an investigation of the use of the Insight Toolkit (ITK), a widely used open-source image segmentation and registration software, to obtain the motion transform from the MR images for both rigid and deformable PET motion corrections for simultaneous PET/MR scans. A human brain PET/MR FDG study and two human cardiac PET/MR FDG studies were acquired on Siemens' Biograph-mMR. ITK's 3D-Versor...
We describe an evaluation of the HD and HD+TOF reconstructions in terms of contrast vs noise, precision vs accuracy, and inter-realization variation on Siemens' Biograph-mCT time-of-flight (TOF) PET scanner. The HD-PET reconstruction is the 3D-OSEM with point-spread-function (PSF) modeling, and the HD+TOF is the HD-PET with the time-spread-function (TSF) modeling based on the TOF information acquired...
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