1. Factors affecting the harmonization of disease-related metabolic brain pattern expression quantification in [18F]FDG-PET (PETMETPAT)
- Author
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Rosalie V. Kogan, Bas A. deJong, Remco J. Renken, Sanne K. Meles, Paul J.H. vanSnick, Sandeep Golla, Sjoerd Rijnsdorp, Daniela Perani, Klaus L. Leenders, Ronald Boellaard, JPND‐PETMETPAT Working Group, APH - Quality of Care, Neurology, Radiology and nuclear medicine, Amsterdam Neuroscience - Brain Imaging, ACS - Heart failure & arrhythmias, Kogan, R. V., de Jong, B. A., Renken, R. J., Meles, S. K., van Snick, P. J. H., Golla, S., Rijnsdorp, S., Perani, D., Leenders, K. L., and Boellaard, R.
- Subjects
Multiple image ,FDG‐PET ,media_common.quotation_subject ,Principal component analysis ,lcsh:Geriatrics ,lcsh:RC346-429 ,Imaging phantom ,18f fdg pet ,Fluorodeoxyglucose positron emission tomography ,03 medical and health sciences ,Behavior disorder ,Hoffman 3D brain phantom ,0302 clinical medicine ,Medicine ,Contrast (vision) ,FDG-PET ,lcsh:Neurology. Diseases of the nervous system ,030304 developmental biology ,media_common ,0303 health sciences ,medicine.diagnostic_test ,business.industry ,Image contrast ,lcsh:RC952-954.6 ,Psychiatry and Mental health ,Harmonization ,Positron emission tomography ,Neuroimaging biomarker ,Neurology (clinical) ,business ,Nuclear medicine ,030217 neurology & neurosurgery - Abstract
Introduction The implementation of spatial-covariance [ 18 F]fluorodeoxyglucose positron emission tomography–based disease-related metabolic brain patterns as biomarkers has been hampered by intercenter imaging differences. Within the scope of the JPND-PETMETPAT working group, we illustrate the impact of these differences on Parkinson's disease–related pattern (PDRP) expression scores. Methods Five healthy controls, 5 patients with idiopathic rapid eye movement sleep behavior disorder, and 5 patients with Parkinson's disease were scanned on one positron emission tomography/computed tomography system with multiple image reconstructions. In addition, one Hoffman 3D Brain Phantom was scanned on several positron emission tomography/computed tomography systems using various reconstructions. Effects of image contrast on PDRP scores were also examined. Results Human and phantom raw PDRP scores were systematically influenced by scanner and reconstruction effects. PDRP scores correlated inversely to image contrast. A Gaussian spatial filter reduced contrast while decreasing intercenter score differences. Discussion Image contrast should be considered in harmonization efforts. A Gaussian filter may reduce noise and intercenter effects without sacrificing sensitivity. Phantom measurements will be important for correcting PDRP score offsets.
- Published
- 2019