Monte Carlo sensitivity study of a long axial FOV PET scanner with patient adaptive rings

Akl, M. Abi; Bouhali, O.; Toufique, Yassine; Js, Karp; Vandenberghe, Stefaan

doi:10.1109/nss/mic42101.2019.9059834

Cited by 7 publications

(2 citation statements)

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“…The results obtained by these prototypes show a minimal decrease in total sensitivity of around 4-fold compared with fully compact TB-PET systems. However, there is an increase in sensitivity compared with the standard 25 cm axial FOV PET scanner with comparable image quality [189][190][191][192]. Another possible alternative solution in this direction has also been proposed, based on an adaptive PET design with an AFOV between 70 cm (compact system) and 140 cm (spaced); this design uses movable detectors that can retract to the compact or spaced configuration depending on possible indications.…”

Section: Scanner Diametermentioning

confidence: 99%

“…Another possible alternative solution in this direction has also been proposed, based on an adaptive PET design with an AFOV between 70 cm (compact system) and 140 cm (spaced); this design uses movable detectors that can retract to the compact or spaced configuration depending on possible indications. With this adaptive mode, it is possible to reduce the diameter of the rings [189].…”

Section: Scanner Diametermentioning

confidence: 99%

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The detection instrumentation and geometric design of clinical PET scanner: towards better performance and broader clinical applications

El Ouaridi,

Ait Elcadi,

Mkimel

et al. 2024

Biomed. Phys. Eng. Express

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Positron emission tomography (PET) is a powerful medical imaging modality used in nuclear medicine to diagnose and monitor various clinical diseases in patients. It is more sensitive and produces a highly quantitative mapping of the three-dimensional biodistribution of positron-emitting radiotracers inside the human body. The underlying technology is constantly evolving, and recent advances in detection instrumentation and PET scanner design have significantly improved the medical diagnosis capabilities of this imaging modality, making it more efficient and opening the way to broader, innovative, and promising clinical applications. Some significant achievements related to detection instrumentation include introducing new scintillators and photodetectors as well as developing innovative detector designs and coupling configurations. Other advances in scanner design include moving towards a cylindrical geometry, 3D acquisition mode, and the trend towards a wider axial field of view and a shorter diameter. Further research on PET camera instrumentation and design will be required to advance this technology by improving its performance and extending its clinical applications while optimising radiation dose, image acquisition time, and manufacturing cost. This article comprehensively reviews the various parameters of instrumentation and PET system design. Firstly, an overview of the historical innovation of the PET system has been presented, focusing on instrumental technology. Secondly, we have characterised the main performance parameters of current clinical PET and detailed recent instrumental innovations and trends that affect these performances and clinical practice. Finally, prospects for this medical imaging modality are presented and discussed. This overview of the PET system's instrumental parameters enables us to draw solid conclusions on achieving the best possible performance for the different needs of different clinical applications.

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Section: Scanner Diametermentioning

confidence: 99%

Section: Scanner Diametermentioning

confidence: 99%