Emission computed tomography having radial position control of radiation detector

Patent · Tue Apr 24 00:00:00 EST 1984

OSTI ID:6450696

Ueyama, A

An emission computed tomography wherein a radiation detector is rotated around a subject to detect radiation emitted from radioisotopes distributed in the subject and a distributing image of the radioisotopes in any section of the subject is reconstructed on the basis of the detected data, the emission computed tomography including detector-driving apparatus for moving the detector to or from the subject as the detector is rotated around the subject, at least one distance-measuring device, such as an ultrasonic transducer, for measuring the distance between the detector and subject at every rotative position of the detector, and apparatus responsive to the measured distance for controlling the detector-driving apparatus in order to adjust the distance between the detector and subject within a predetermined range.

• Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (Japan)
• Patent Number(s): US 4445035
• OSTI ID: 6450696
• Resource Relation: Patent Priority Date: Priority date 19 May 1981, Japan; Other Information: PAT-APPL-265243
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
EMISSION COMPUTED TOMOGRAPHY
RADIATION DETECTORS
POSITIONING
BODY
CONTROL
CONTROL EQUIPMENT
DATA TRANSMISSION
DESIGN
DISTANCE
NUCLEAR MEDICINE
RANGE FINDERS
RECORDING SYSTEMS
TRANSDUCERS
COMMUNICATIONS
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
EQUIPMENT
MEASURING INSTRUMENTS
MEDICINE
TOMOGRAPHY
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments