Fluence Field Modulated CT
- Technology Application
- Reduced-dose CT setting on CT scanner
- Detailed Technology Description
- Managing dose/quality tradeoff inCT by modulating x-ray fluence
- *Abstract
-
Fluence field modulated computed tomography (FFMCT) proposes a newparadigm for CT imaging that attempts to better manage the tradeoff betweenimage quality and dose to the patient. In this approach, the pattern of X-rayfluence incident on the patient is dynamically changed during the scan, guidedby dose and image quality models that are task and/or patient specific.Research has indicated that FFMCT can potentially deliver user-prescribed,regionally-varying image quality objectives, while reducing radiation exposureto the patient, which according to the most recent publication may be on theorder of 30-50% depending on the application. The technique is being improvedregularly as evidenced by the string of publications.
- *Principal Investigator
-
Dr. David Jaffray,University Health Network
- *Publications
- BartolacS, Graham S, Siewerdsen J, Jaffray D.“Fluence field optimization for noise and dose objectives in CT”. Med Phys.2011 Jul;38 Suppl 1:S2. doi: 10.1118/1.3574885.BartolacS, Jaffray D.“Compensator models for fluence field modulated computed tomography” Med Phys.2013 Dec;40(12):121909. doi: 10.1118/1.4829513.
- Country/Region
- USA
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