Effect of increased axial field of view of on the performance of a volume PET scanner. [Positron Emission Tomography (PET)]

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:6009923

Karp, J S; Kinahan, P E ^[1]; Muehllehner, G; Countryman, P ^[2]

---

1. Pennsylvania Univ., Philadelphia, PA (United States). Dept. of Radiology
2. UGM Medical Systems, Inc., Philadelphia, PA (United States)

The performance of the PENN-PET 240H scanner from UGM Medical Systems is tested and compared to the prototype PENN-PET scanner built at the University of Pennsylvania. The UGM PENN-PET scanner consists of six continuous position-sensitive NaI(Tl) detectors, which results in a 50-cm transverse field-of-view and a 12.8-cm axial field-of-view. The fine spatial sampling in the axial direction allows the data to be sorted into as many as 64 transverse planes, each 2-mm thick. A large axial acceptance angle, without interplane septa, results in a high sensitivity, with a low scatter and randoms fraction, due to the use of a narrow photopeak energy window. This paper emphasizes those performance measurements that illustrate the special characteristics of a volume imaging scanner and how they change as the axial length is increased.

• Research Organization: Pennsylvania Univ., Philadelphia, PA (United States). Dept. of Radiology
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-88ER60642
• OSTI ID: 6009923
• Report Number(s): CONF-911106-34; ON: DE92004424
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
COMPUTERIZED TOMOGRAPHY
COUNTING RATES
DIAGNOSTIC TECHNIQUES
DIMENSIONS
EMISSION COMPUTED TOMOGRAPHY
IMAGE PROCESSING
IMAGE SCANNERS
LENGTH
MEASURING INSTRUMENTS
NAI DETECTORS
PERFORMANCE TESTING
POSITRON COMPUTED TOMOGRAPHY
PROCESSING
RADIATION DETECTORS
SCINTILLATION COUNTERS
SENSITIVITY
SOLID SCINTILLATION DETECTORS
TESTING
TOMOGRAPHY