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CODE:
LL-PH5190
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Report of CT Dose Indices Derived from Measurements Made on all Multi-Detector Row CT Scanners Used in the National Lung Screening Trial (NLST)
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DISCLOSURES |
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D.C.
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- Speaker, Medical Technology Management Institute, Milwaukee, WI
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C.C.
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- Nothing to disclose.
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F.L.
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- Nothing to disclose.
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M.M.
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- Nothing to disclose.
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R.K.
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- Nothing to disclose.
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M.F.
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- Researcher, F. Hoffmann-La Roche Ltd (Roche Diagnostics)
Researcher, Shimadzu Corporation
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.e.
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| | PURPOSE/AIM |
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To report on several standard, machine-related CT dose indices based on measurements obtained from a diverse sample of multi-detector row CT scanners used in a large scale clinical trial. Overall CTDIw and CTDIvol results will be presented based on standard CTDI measurements and a 32-cm diameter acrylic phantom.
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| | CONTENT ORGANIZATION |
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As part of the National Lung Screening Trial's ongoing Quality Assurance program, each site enrolled in the trial periodically performed standard CTDI measurements. These measurements were performed at the 46 scanner sites by a physicist, and the results were recorded in a standardized fashion. CTDIw and CTDIvol results for approximately 100 multi-detector row CT scanners used during the course of this chest screening study will be presented by make and model.
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| | SUMMARY |
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Concern regarding radiation dose delivered by current vintage CT scanners continues to escalate. Meausurements of radiation exposure may soon become standard in future large CT imaging trials.
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No published email address listed. |
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