| Hard-copy versus soft-copy image reading for detection of ureteral stones on abdominal radiography. | |
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MedLine Citation:
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PMID: 14632296 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The purpose of this study was to compare the usefulness of soft-copy images displayed on a cathode ray tube (CRT) with hard-copy images (film images) for detecting ureteral stones on abdominal radiography. MATERIALS AND METHODS: Five radiologists read images from 50 cases of ureteral stones and 50 normal cases diagnosed on the basis of intravenous urography and CT. For hard-copy reading, 10-bit images at 3,520x4,280 pixels obtained by computed radiography were printed on 14x17-inch films. For soft-copy reading, 8-bit images were displayed on a 17-inch monochrome monitor at 1,024x1,280 pixels. The study items were area under receiver operating characteristics (ROC) curve (Az), ureteral stone detection sensitivity and specificity, and reading time. RESULTS: For soft-copy and hard-copy images, the average Az values were 0.855 and 0.851, sensitivity was 62.8% and 62%, and specificity was 70.8% and 62.4%, respectively. There were no statistically significant differences between these values. Reading time was 106.6 min for soft-copy images, significantly longer than the 71.2 min for hard-copy images (p<0.05). CONCLUSION: Although soft-copy image reading time was longer than hard-copy image reading time, the ability to diagnose ureteral stones on abdominal radiography did not differ for soft- and hard-copy images. |
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Authors:
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Koji Ueda; Satoru Iwasaki; Masahumi Nagasawa; Satoru Sueyoshi; Junko Takahama; Koichi Ide; Kimihiko Kichikawa |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Radiation medicine Volume: 21 ISSN: 0288-2043 ISO Abbreviation: Radiat Med Publication Date: 2003 Sep-Oct |
Date Detail:
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Created Date: 2003-11-24 Completed Date: 2004-03-04 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8412264 Medline TA: Radiat Med Country: Japan |
Other Details:
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Languages: eng Pagination: 210-3 Citation Subset: IM |
Affiliation:
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Department of Radiology, Higashiosaka City General Hospital, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Aged, 80 and over Data Display Female Humans Male Middle Aged ROC Curve Radiography, Abdominal* Radiology Information Systems* Sensitivity and Specificity Tomography, X-Ray Computed Ureteral Calculi / radiography* Urography X-Ray Film |
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