| The effect of CT dose on glenohumeral joint congruency measurements using 3D reconstructed patient-specific bone models. | |
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MedLine Citation:
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PMID: 21941031 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The study of joint congruency at the glenohumeral joint of the shoulder using computed tomography (CT) and three-dimensional (3D) reconstructions of joint surfaces is an area of significant clinical interest. However, ionizing radiation delivered to patients during CT examinations is much higher than other types of radiological imaging. The shoulder represents a significant challenge for this modality as it is adjacent to the thyroid gland and breast tissue. The objective of this study was to determine the optimal CT scanning techniques that would minimize radiation dose while accurately quantifying joint congruency of the shoulder. The results suggest that only one-tenth of the standard applied total current (mA) and a pitch ratio of 1.375:1 was necessary to produce joint congruency values consistent with that of the higher dose scans. Using the CT scanning techniques examined in this study, the effective dose applied to the shoulder to quantify joint congruency was reduced by 88.9% compared to standard clinical CT imaging techniques. |
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Authors:
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Emily A Lalone; Anne-Marie V Fox; Angela E Kedgley; Thomas R Jenkyn; Graham J W King; George S Athwal; James A Johnson; Terry M Peters |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-23 |
Journal Detail:
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Title: Physics in medicine and biology Volume: 56 ISSN: 1361-6560 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401220 Medline TA: Phys Med Biol Country: - |
Other Details:
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Languages: ENG Pagination: 6615-6624 Citation Subset: - |
Affiliation:
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Biomedical Engineering, The University of Western Ontario, London, Canada. Robarts Research Institute, The University of Western Ontario, London, Canada. Hand and Upper Limb Centre, St. Joseph's Hospital, London, Canada (CT Scanning Location). |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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