Optimization of image reconstruction conditions with phantoms for brain FDG and amyloid PET imaging

Annals of Nuclear Medicine
Go AkamatsuM Senda

Abstract

The purpose of this study was to optimize image reconstruction conditions for brain (18)F-FDG, (11)C-PiB, (18)F-florbetapir and (18)F-flutemetamol PET imaging with Discovery-690 PET/CT for diagnosis and research on Alzheimer's disease (AD) based on the standard imaging protocols and phantom test procedures and criteria published by the Japanese society of nuclear medicine (JSNM). A Hoffman 3D brain phantom and a cylindrical pool phantom were scanned according to the JSNM procedure, and the reconstruction conditions (iteration, subset, post-filter) were optimized so that the images satisfy the JSNM criteria regarding spatial resolution (FWHM ≤ 8 mm) and gray/white matter contrast (%contrast ≥ 55%) on the Hoffman phantom and uniformity (SD of small ROIs ≤ 0.0249) and image noise (coefficient of variation ≤ 15 %) on the pool phantom. Human images were acquired with (18)F-FDG (15-min scan starting at 30 min post-injection [p.i.] of 185 MBq), (11)C-PiB (20-min scan starting at 50 min p.i. of 555 MBq), (18)F-florbetapir (10-min scan starting at 50 min p.i. of 370 MBq) and (18)F-flutemetamol (30-min scan starting at 90 min p.i. of 185 MBq) on 1 or 2 subjects for each tracer and reconstructed with thus determined conditions to evaluate...Continue Reading

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Citations

Apr 22, 2017·Nihon Hoshasen Gijutsu Gakkai zasshi·Go AkamatsuMichio Senda
Sep 20, 2019·EJNMMI Research·Go AkamatsuUNKNOWN Japanese Alzheimer’s Disease Neuroimaging Initiative
Jul 26, 2019·Physics in Medicine and Biology·Matthieu VanhoutteRachid Fahmi

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