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Review
. 2004 Nov;42(6):1017-32, vii.
doi: 10.1016/j.rcl.2004.08.001.

PET/CT scanner instrumentation, challenges, and solutions

Adam M Alessio  1 , Paul E Kinahan, Phillip M Cheng, Hubert Vesselle, Joel S Karp
Affiliations
Review

PET/CT scanner instrumentation, challenges, and solutions

Adam M Alessio et al. Radiol Clin North Am. 2004 Nov.

Abstract

PET/CT scanners offer a hardware solution for aligning and viewing functional and anatomic images that is immune to many of the errors in strictly software registration techniques. Moreover, PET attenuation-corrected emission scans benefit from the use of the onboard CT for fast, low-noise attenuation correction. Along with the significant improved localization and reduced acquisition time, PET/CT scanners also introduce new instrumentation challenges ranging from patient movement to quantitative attenuation correction. This article provides an overview of current PET/CT scanner technology, a discussion of challenges faced by these systems, and pending solutions.

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