High resolution time-of-flight positron emission tomograph
- Cyclotron and Radioisotope Center, Tohoku University, Aramaki-Aoba, Aoba-ku, Sendai 980 (Japan)
- Research Institute for Tuberculosis and Cancer, Tohoku University, Seiryocho, Aoba-ku, Sendai (Japan)
- CTI PET Systems, Inc., 810 Innovation Drive, Knoxville, TN (USA)
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{times}18-mm BaF{sub 2} detectors to detect the positron-electron annihilation {gamma}-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 {gamma}-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.
- OSTI ID:
- 6006565
- Journal Information:
- Review of Scientific Instruments; (USA), Journal Name: Review of Scientific Instruments; (USA) Vol. 61:12; ISSN RSINA; ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
COMPUTERIZED CONTROL SYSTEMS
COMPUTERIZED TOMOGRAPHY
CONTROL SYSTEMS
DESIGN
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
EMISSION COMPUTED TOMOGRAPHY
GAMMA RADIATION
IONIZING RADIATIONS
MEASURING INSTRUMENTS
POSITRON COMPUTED TOMOGRAPHY
RADIATIONS
SIGNAL-TO-NOISE RATIO
SPECTROMETERS
TIME-OF-FLIGHT SPECTROMETERS
TOMOGRAPHY