| Multislice helical CT of focal and diffuse lung disease: comprehensive diagnosis with reconstruction of contiguous and high-resolution CT sections from a single thin-collimation scan. | |
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MedLine Citation:
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PMID: 11418423 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: We tested breath-held 1-mm multislice helical CT for obtaining both contiguous and high-resolution CT sections of the chest from a single set of raw data. SUBJECTS AND METHODS: Seventy patients with suspected focal and diffuse lung disease were allocated into two groups for comparison. The first group (n = 35) underwent multislice helical CT of the chest with 1-mm collimation and a pitch of 6. From the raw data, 5-mm contiguous and 1.25-mm high-resolution CT sections were reconstructed. The second group (n = 35) underwent conventional single-slice helical CT and high-resolution CT. High-resolution CT sections and 5-mm scans were rated for overall image quality, spatial resolution, subjective signal-to-noise ratio, diagnostic value, depiction of bronchi and parenchyma, and motion and streak artifacts. The 5-mm scans were also rated for contrast resolution and depiction of the heart and vessels. Radiation dose was calculated. RESULTS: We rated 5-mm multislice helical CT superior to 5-mm single-slice helical CT, having a significantly higher total score (p = 0.0001). No significant difference (p = 0.986) was found between multislice and single-slice high-resolution CT sections. Radiation dose was 5.55 mSv for multislice helical CT and 5.50 mSv for single-slice helical CT. CONCLUSION: Contiguous chest scans of superior quality and high-resolution CT sections of equal image quality compared with single-slice helical CT can be obtained using multislice helical CT. Therefore, a comprehensive diagnosis is feasible in patients with suspected focal and diffuse lung disease by obtaining a single scan. |
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Authors:
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U J Schoepf; R D Bruening; C Hong; R Eibel; S Aydemir; A Crispin; C Becker; M F Reiser |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: AJR. American journal of roentgenology Volume: 177 ISSN: 0361-803X ISO Abbreviation: AJR Am J Roentgenol Publication Date: 2001 Jul |
Date Detail:
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Created Date: 2001-06-21 Completed Date: 2001-08-30 Revised Date: 2008-02-15 |
Medline Journal Info:
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Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: United States |
Other Details:
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Languages: eng Pagination: 179-84 Citation Subset: AIM; IM |
Affiliation:
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Department of Clinical Radiology, University of Munich, Klinikum Grosshadern, Marchioninistr. 15, 81377 Munich, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Female Humans Lung Diseases / radiography* Middle Aged Tomography, X-Ray Computed / methods* |
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