Acquisition and calibration principles for aspect - A spect camera using digital position analysis

Conference · Mon Feb 01 04:00:00 EST 1988 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:7254568

Smith, A P; Genna, S

The design of the data acquisition and calibration procedures employed in the nuclear medicine SPECT camera coined ASPECT (Annular Single Photon Emission Computed Tomography) is presented. ASPECT's unique detector is a stationary annular single-crystal NaI(TI) scintillator used with a lightweight rotating collimator, which will provide 3-dimensional imaging of the brain with up to six-fold improvement in sensitivity over conventional single-headed rotating gamma cameras. ASPECT is unique in other important respects in addition to the detector/collimator system. Signals from each photomultiplier (PM) are separately digitized on an event by event basis, with all position analysis algorithms performed digitally. This results in significant differences from a conventional Anger camera, where the first determination of the position of a scintillation event is calculated using analog circuitry. Other innovative software includes automated procedures enabling quality control and total system calibration to be easily undertaken by the user.

• Research Organization: Digital Scintigraphics, Inc., Box 1012, 1972 Massachusetts Avenue, Cambridge, MA (US)
• OSTI ID: 7254568
• Report Number(s): CONF-871006-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: 35:1
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
550602 -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
655002 -- Medical Physics-- Radiation Source Calibration & Standardization
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
ALKALI METAL COMPOUNDS
BODY
BRAIN
CALIBRATION
CAMERAS
CENTRAL NERVOUS SYSTEM
COLLIMATORS
COMPUTER CODES
COMPUTERIZED TOMOGRAPHY
CONTROL
DATA ACQUISITION
DIAGNOSTIC TECHNIQUES
DIGITAL SYSTEMS
EMISSION COMPUTED TOMOGRAPHY
GAMMA CAMERAS
HALIDES
HALOGEN COMPOUNDS
IMAGE PROCESSING
IMAGE SCANNERS
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
NERVOUS SYSTEM
ORGANS
PHOSPHORS
PHOTOMULTIPLIERS
PHOTOTUBES
PROCESSING
QUALITY CONTROL
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
SODIUM COMPOUNDS
SODIUM IODIDES
TECHNOLOGY ASSESSMENT
THREE-DIMENSIONAL CALCULATIONS
TOMOGRAPHY