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1. (WO2018127507) STANDARDIZED UPTAKE VALUE (SUV) GUIDED RECONSTRUCTION CONTROL FOR IMPROVED OUTCOME ROBUSTNESS IN POSITRON EMISSION TOMOGRAPHY (PET) IMAGING

Pub. No.:    WO/2018/127507    International Application No.:    PCT/EP2018/050111
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Thu Jan 04 00:59:59 CET 2018
IPC: G06T 11/00
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: ZHANG, Bin
BAI, Chuanyong
LIN, Sushen
ANDREYEV, Andriy
HU, Zhiqiang
Title: STANDARDIZED UPTAKE VALUE (SUV) GUIDED RECONSTRUCTION CONTROL FOR IMPROVED OUTCOME ROBUSTNESS IN POSITRON EMISSION TOMOGRAPHY (PET) IMAGING
Abstract:
A nuclear medicine image reconstruction method generates a reconstructed image (44) by performing iterative image reconstruction (30, 130) on nuclear medicine imaging data (22). The iterative image reconstruction produces a sequence of update images (34, 36, 134, 136). During the iterative image reconstruction, a standardized uptake value (SUV) transform (40) is applied to convert an update image (34, 36) to an update SUV image (42, 46). The SUV transform scales values of voxels of the update image to SUV values using scaling factors including at least a body size metric and a dose metric. During the iterative image reconstruction, at least one parameter used in an image update of the iterative image reconstruction is adjusted using the update SUV image. For example, a parameter of a prior or filter (38) incorporated into an image reconstruction update step (32) or used in filtering of an update image (36) may be adjusted.