| Multidetector-row helical CT: analysis of time management and workflow. | |
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MedLine Citation:
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PMID: 11870487 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to evaluate time management and workflow for multidetector-row helical CT (MDCT). Time for patient and data handling of at total of 580 patients were evaluated at two different time periods (December 1999, August 2000), each for the following baseline measurements: (a) change of clothes/instruction; (b) patient placement on the CT table/i.v. catheter; (c) CT planning and programming; (d) CT data acquisition; (e) CT data reconstruction; (f) CT data storage/printing. All imaging was performed on a Somatom Volume Zoom (Siemens, Erlangen, Germany). Time measurements summarized for different CT protocols revealed the following: (a) 5:01 min (+/- 2.06 min); (b) 4:36 min (+/- 2.43 min); (c) 4:11 min (+/- 2.55 min); (d) 0:43 min (+/- 0.15 min); (e) 6:59 min (+/- 2.39 min); (f) 09:51 min (+/- 3.51 min). Planning and programming was most time-consuming for CT angiography, whereas chest and abdominal CT needed only 3:26 and 3:30 min, respectively. Reconstruction time was highest for HRCT (9:22 min) and CTA (9:03 min). Data storage/printing was most time-consuming for HRCT (13:02 min), followed by combined neck-chest-abdomen examinations (12:19 min). Comparing the two time periods, during which a software update was performed, a mean time reduction of 4:31 min per patient (15%, p<0.001) was achieved. Whereas CT data acquisition time is no longer a problem with MDCT, patient management, data reconstruction, and data storage are the most time-consuming parts. Well-trained technicians, state-of-the-art workstations, and fast networking are the most important factors to improve workflow. |
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Authors:
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Justus E Roos; Lotus M Desbiolles; Jürgen K Willmann; Dominik Weishaupt; Borut Marincek; Paul R Hilfiker |
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Publication Detail:
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Type: Evaluation Studies; Journal Article Date: 2001-10-16 |
Journal Detail:
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Title: European radiology Volume: 12 ISSN: 0938-7994 ISO Abbreviation: Eur Radiol Publication Date: 2002 Mar |
Date Detail:
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Created Date: 2002-02-28 Completed Date: 2002-04-12 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 9114774 Medline TA: Eur Radiol Country: Germany |
Other Details:
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Languages: eng Pagination: 680-5 Citation Subset: IM |
Affiliation:
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Institute of Diagnostic Radiology, University Hospital Zurich, Rämistrasse 100, 8091 Zurich, Switzerland. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Efficiency, Organizational* Humans Radiology Department, Hospital / organization & administration* Time Management* Tomography, X-Ray Computed* / instrumentation, methods |
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