| ORGAN DOSE EVALUATION FOR MULTI-SLICE SPIRAL CT SCANS BASED ON CHINA SICHUAN CHEST ANTHROPOMORPHIC PHANTOM MEASUREMENTS. | |
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MedLine Citation:
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PMID: 22039271 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The authors measured organ radiation doses during multi-slice computed tomography (MSCT) chest scans using a China Sichuan anthropomorphic phantom (CDP-1C). Chest CT images from live volunteers based on automatic tube current modulation (ATCM) techniques were similar to those obtained using the CDP-1C phantom, indicating that the phantom accurately modelled the anatomic structure and X-ray absorbance of the human torso. Indeed, attenuation values differed by <5 %. Organ radiation doses were measured using thermoluminescence dosemeters in the CDP-1C. With increased noise index, the CT dose index, the dose-length product and the average organ dose all decreased. Thus, the CDP-1C phantom can also assess dose levels during CT examinations in Chinese patients. The noise index (based on ATCM techniques) should be set to 8.5 or higher to reduce X-ray exposure while maintaining appropriate resolution for diagnosis. |
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Authors:
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Gang Peng; Yongming Zeng; Tianyou Luo; Feng Zhao; Shengkun Peng; Renqiang You; Hua Tan; Xiao Liu; Jie Wang |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-27 |
Journal Detail:
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Title: Radiation protection dosimetry Volume: - ISSN: 1742-3406 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8109958 Medline TA: Radiat Prot Dosimetry Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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