Simulation of a High-Sensitivity Adjustable-FOV PET Scanner

Ozsahin, Ilker; Musa, Musa Sani; Mok, Greta S. P.

doi:10.1109/nssmic.2018.8824440

Cited by 1 publication

(2 citation statements)

References 7 publications

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“…As shown in the previous study [11], with a very high sensitivity, a scan time of as short as 1 minute can be achieved. Therefore, motion correction might not be needed.…”

Section: Transaxial Fwhm (Fwtm) Fwhm (Fwtm) Fwhm (Fwtm) Fwhm (Fwtm) F...mentioning

confidence: 55%

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Preliminary performance evaluation of adjustable-FOV full-body PET

Ozsahin¹

2020

J. Inst.

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Recent developments in molecular imaging have led to increases in the performance and area of utilization of positron emission tomography (PET) systems. There are several ways that PET system sensitivity can be increased including changing the scanner's geometry. I recently proposed a novel PET design with adjustable field of view (FOV) to improve the system sensitivity up to 40 times higher than the conventional systems, depending on the size of the transaxial FOV. This study aims to evaluate the spatial resolution characteristics of the proposed design. Geant4-based Architecture for Medicine Oriented Simulations (GAMOS) toolkit was used to simulate the system. The proposed PET geometry was designed to cover and scan the full-body of the patient in one bed position. The spatial resolution tests were conducted using a point like source placed at different locations throughout the FOV when the transaxial FOV of the scanner was changed from 70 cm to 30 cm. The results showed that the spatial resolution slightly degrades when the FOV is reduced. K: Gamma camera, SPECT, PET PET/CT, coronary CT angiography (CTA); Medicalimage reconstruction methods and algorithms, computer-aided diagnosis; Medical-image reconstruction methods and algorithms, computer-aided software

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“…As shown in the previous study [11], with a very high sensitivity, a scan time of as short as 1 minute can be achieved. Therefore, motion correction might not be needed.…”

Section: Transaxial Fwhm (Fwtm) Fwhm (Fwtm) Fwhm (Fwtm) Fwhm (Fwtm) F...mentioning

confidence: 55%

“…They found that increasing the axial FOV from 22 cm to 220 cm resulted in a 17-26 fold variance reduction in the ROI analysis, depending on the size of the ROI. The aim of this study is to evaluate the spatial resolution characteristics of a recently proposed PET scanner [11].…”

Section: Introductionmentioning

confidence: 99%

Preliminary performance evaluation of adjustable-FOV full-body PET

Ozsahin¹

2020

J. Inst.

View full text Add to dashboard Cite

show abstract

Simulation of a High-Sensitivity Adjustable-FOV PET Scanner

Cited by 1 publication

References 7 publications

Preliminary performance evaluation of adjustable-FOV full-body PET

Preliminary performance evaluation of adjustable-FOV full-body PET

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