| Extended pitch thoracic helical CT 47. | |
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MedLine Citation:
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PMID: 9421649 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The objective of this study was to test whether extended 1.5 pitch helical computed tomography (CT) can be used for routine thoracic CT without a significant loss of clinical scan quality. Thirty consecutive patients presenting for contrast thoracic CT were computer randomized into one of three groups: conventional, 1.0 pitch helical, and 1.5 pitch helical. All other variables, including kV, mA, slice thickness and reconstruction interval, and contrast administration, were kept constant. The studies were randomized to five independent, blinded, experienced radiologists who rated visualization 25 normal structures, and up to five pathologic findings per patient. In addition, each reader evaluated the studies' contrast enhancement, low contrast sensitivity, linear resolution, motion artifact, noise, and overall quality. The visualization score for all normal and overall for pathological lesions did not vary between groups. The three groups were not equivalent for several individual pathologic categories. However, these differences were not consistently in favor of one technique over the other two. The overall score for scan quality was not significantly different between the three groups. Extended 1.5 pitch thoracic helical CT provides equivalent quality versus either 1.0 pitch helical or conventional CT. The use of 1.5 pitch helical thoracic CT allows faster scanning, greater patient coverage, and the use of reduced amounts of intravenous contrast. |
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Authors:
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P S Singer; K D Hopper; J A Jozefiak; S V Patrone; C J Kasales; R P Mahraj; T R Tenhave; D A Tully |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: Clinical imaging Volume: 22 ISSN: 0899-7071 ISO Abbreviation: Clin Imaging Publication Date: 1998 Jan-Feb |
Date Detail:
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Created Date: 1998-02-10 Completed Date: 1998-02-10 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8911831 Medline TA: Clin Imaging Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 11-4 Citation Subset: IM |
Affiliation:
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Department of Radiology, Penn State University, Hershey, PA 17033, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Contrast Media Humans Image Processing, Computer-Assisted / methods Lung / radiography Lung Diseases / radiography Radiographic Image Enhancement / methods Sensitivity and Specificity Tomography, X-Ray Computed* / methods |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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