Lesion detection and workflow optimization in whole body diffusion MR imaging using trimodality PET/CT+MR in the oncology setting.
James L. Patrick 1 , Perry J. Pickhardt 1 , Hyungseok Jang 1 , Scott B. Perlman 1 , and Alan B. McMillan 1
Radiology, University of Wisconsin School of
Medicine and Public Health, Madison, Wisconsin, United
The purpose of this study is to evaluate a rapid,
whole-body MR protocol to determine the value PET/CT+MR
tri-modality imaging provides in addition to
conventional PET/CT with respect to small lesion
detection. All FDG-avid visceral organ lesions and
lymphadenopathy seen on PET/CT demonstrated restricted
diffusion on DWI. Rapid trimodality whole body DWI MRI
shows a good correlation with FDG avid lesions in the
oncological setting, and DWI may help improve clinical
confidence in small PET/CT equivocal lesions. Whole body
DWI can be performed within the time constraints of a
normal diagnostic PET/CT thereby adding additional
information without affecting workflow.
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