Dynamic, gated and high resolution imaging with the ECAT III

Conference · Sat Feb 01 00:00:00 EST 1986 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5818820

Hoffman, E J; Phelps, M E; Huang, S; Collard, P E; Bidaut, L M; Schwab, R L; Ricci, A R

The ECAT III was designed primarily with a view towards imaging the heart. The gantry both rotates about the vertical axis and tilts about the horizontal axis to allow the optimum imaging angle of the heart. The patient opening is 65 cm in diameter to allow these motions. The system allows six TTL inputs to allow the user to insert additional information into the data stream (i.e. R wave gate from EKG, respiratory gate, signal start of injection, time of blood sample, etc.). The 512 narrow detectors (5.6 mm) per ring and their close packing (.5 mm) in conjunction with the natural spatial resolution limits of annihilation coincidence detection allow the system to image without the requirement of a scanning motion. This eliminates the problem of artefacts caused by inconsistent data due to asynchrony between the scanning motion of a PET system and the cardiac and/or the respiratory cycle. In this work, the authors present initial experience with the ECAT III in imaging phantoms, animals and man.

• Research Organization: Division of Nuclear Medicine and Biophysics, UCLA School of Medicine, University of California, Los Angeles
• OSTI ID: 5818820
• Report Number(s): CONF-851009-
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Vol. NS-33:1; Conference: IEEE nuclear science symposium, San Francisco, CA, USA, 23 Oct 1985
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ECAT SCANNING
DATA ACQUISITION SYSTEMS
RADIATION DETECTORS
ANIMALS
ANNIHILATION
HEART
IMAGE PROCESSING
INCIDENCE ANGLE
MAN
MEMORY DEVICES
MHZ RANGE 100-1000
MICROPROCESSORS
RADIOCARDIOGRAPHY
RESPIRATORY SYSTEM
SPATIAL RESOLUTION
BASIC INTERACTIONS
BODY
CARDIOGRAPHY
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
COMPUTERS
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC INTERACTIONS
ELECTRONIC CIRCUITS
EMISSION COMPUTED TOMOGRAPHY
FREQUENCY RANGE
INTERACTIONS
MAMMALS
MEASURING INSTRUMENTS
MHZ RANGE
MICROELECTRONIC CIRCUITS
ORGANS
PHOTON EMISSION SCANNING
PRIMATES
PROCESSING
RESOLUTION
TOMOGRAPHY
VERTEBRATES
550602* - Medicine- External Radiation in Diagnostics- (1980-)
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments