High resolution time-of-flight positron emission tomograph

Keizo Ishii; Hikonojo Orihara; Taiju Matsuzawa; David M. Binkley; Ronald Nutt

doi:10.1063/1.1141549

High resolution time-of-flight positron emission tomograph

Keizo Ishii, Hikonojo Orihara, Taiju Matsuzawa, David M. Binkley, Ronald Nutt

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

A time-of-flight positron emission tomograph (TOF-PET) was recently developed for the purpose of clinical medical study and brain research. It provides high-quality positron images with a spatial resolution of 8 mm full width at half-maximum (FWHM) which is obtained by the use of time-of-flight (TOF) location techniques and small 10×18-mm BaF₂ detectors to detect the positron-electron annihilation γ-rays. The time-of-flight resolving time was 623 ps (FWHM) in the system, which has improved the S/N ratio for positron images. This new TOF-PET has been designed to digitally record the arriving time of γ-rays at the detectors using the system clock. With this method, the architecture of hard and software for taking TOF sinograms and reconstructing TOF images is simplified compared to that of other TOF-PET systems. The details of this system are described here.

Original language	English
Pages (from-to)	3755-3762
Number of pages	8
Journal	Review of Scientific Instruments
Volume	61
Issue number	12
DOIs	https://doi.org/10.1063/1.1141549
Publication status	Published - 1990 Dec 1

ASJC Scopus subject areas

Instrumentation

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abstract = "A time-of-flight positron emission tomograph (TOF-PET) was recently developed for the purpose of clinical medical study and brain research. It provides high-quality positron images with a spatial resolution of 8 mm full width at half-maximum (FWHM) which is obtained by the use of time-of-flight (TOF) location techniques and small 10×18-mm BaF2 detectors to detect the positron-electron annihilation γ-rays. The time-of-flight resolving time was 623 ps (FWHM) in the system, which has improved the S/N ratio for positron images. This new TOF-PET has been designed to digitally record the arriving time of γ-rays at the detectors using the system clock. With this method, the architecture of hard and software for taking TOF sinograms and reconstructing TOF images is simplified compared to that of other TOF-PET systems. The details of this system are described here.",

author = "Keizo Ishii and Hikonojo Orihara and Taiju Matsuzawa and Binkley, {David M.} and Ronald Nutt",

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AU - Orihara, Hikonojo

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AU - Binkley, David M.

AU - Nutt, Ronald

PY - 1990/12/1

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High resolution time-of-flight positron emission tomograph

Abstract

ASJC Scopus subject areas

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