Definition of collimation in US English:



  • See collimate

    • ‘Spiral CT scans (Somatom Plus Four; Siemens; Iselin, NJ) were performed using 3-mm collimation, 6 mm/s table speed, and 3-mm reconstruction.’
    • ‘Camera systems must have passed routine quality control checks with the collimation used and were photopeaked at 140 keV [+ or -] 10%. Whole-body images were acquired with a scan speed of 15 cm/min.’
    • ‘Most HRCT protocols use thin collimation (at intervals or continuously) from apices to costophrenic angles in the supine position with image reconstruction using an edge-enhancement algorithm.’
    • ‘All CT images were taken on subjects in the supine position with an HRCT scanner (X-Vigor; Toshiba, Tokyo, Japan), with 2-mm collimation according to the previously reported protocol.’
    • ‘Even with the collimation provided by a parabolic sending station, my gut feeling is that the physics (scattering, signal-to-noise, etc) is very much against it working.’