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Scientific article
English

Experimental evaluation and basis function optimization of the spatially variant image-space PSF on the Ingenuity PET/MR scanner

Published inMedical physics, vol. 41, no. 6, 062501
Publication date2014
Abstract

The Ingenuity time-of-flight (TF) PET/MR is a recently developed hybrid scanner combining the molecular imaging capabilities of PET with the excellent soft tissue contrast of MRI. It is becoming common practice to characterize the system's point spread function (PSF) and understand its variation under spatial transformations to guide clinical studies and potentially use it within resolution recovery image reconstruction algorithms. Furthermore, due to the system's utilization of overlapping and spherical symmetric Kaiser-Bessel basis functions during image reconstruction, its image space PSF and reconstructed spatial resolution could be affected by the selection of the basis function parameters. Hence, a detailed investigation into the multidimensional basis function parameter space is needed to evaluate the impact of these parameters on spatial resolution.

Citation (ISO format)
KOTASIDIS, Fotis, ZAIDI, Habib. Experimental evaluation and basis function optimization of the spatially variant image-space PSF on the Ingenuity PET/MR scanner. In: Medical physics, 2014, vol. 41, n° 6, p. 062501. doi: 10.1118/1.4875689
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ISSN of the journal0094-2405
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Creation12/19/2014 3:44:00 PM
First validation12/19/2014 3:44:00 PM
Update time03/14/2023 10:34:55 PM
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