| Routine helical CT of the abdomen: image quality considerations. | |
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MedLine Citation:
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PMID: 8210365 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: Both helical and nonhelical abdominal computed tomographic (CT) scans were obtained to compare image quality, study the effect of patient size and collimation, and compare the frequency of visualization of normal abdominal structures. MATERIALS AND METHODS: The study group consisted of 60 consecutive patients with clinically suspected metastatic malignancy. RESULTS: Both helical and nonhelical image quality was excellent, with equal mean image quality scores of 4.1 on a 5-point scale. In patients weighing more than 175 lb (79 kg), both helical and nonhelical image quality degraded equally when 5-mm collimation was used; 10-mm collimation resulted in excellent image quality, regardless of patient size. Small in-plane structures (eg, renal arteries, renal veins, pancreatic duct) were seen best on helical scans. With the addition of retrospectively reconstructed overlapping images, improvement in visualization of these structures was statistically significant. CONCLUSION: Helical CT scanning should be the preferred means of acquiring routine abdominal CT images. |
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Authors:
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R K Zeman; A S Zeiberg; W J Davros; S M Ascher; C J Cooper; D I Weltman; R Patt; B S Garra; D L Griego; P M Silverman |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Radiology Volume: 189 ISSN: 0033-8419 ISO Abbreviation: Radiology Publication Date: 1993 Nov |
Date Detail:
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Created Date: 1993-11-18 Completed Date: 1993-11-18 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401260 Medline TA: Radiology Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 395-400 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, Georgetown University Medical Center, Washington, DC 20007. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Abdominal Neoplasms
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radiography,
secondary Adult Aged Aged, 80 and over Algorithms Artifacts Breast Neoplasms / pathology Female Humans Image Processing, Computer-Assisted Iohexol / diagnostic use Lymphoma / pathology Male Middle Aged Pancreatic Ducts / radiography Prospective Studies Radiographic Image Enhancement / methods* Radiography, Abdominal* Renal Artery / radiography Renal Veins / radiography Retrospective Studies Tomography, X-Ray Computed / methods* |
| Chemical | |
Reg. No./Substance:
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66108-95-0/Iohexol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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