View in EDS PDF Full Text

CT colonography interpretation times: effect of reader experience, fatigue, and scan findings in a multi-centre setting.

Saved in:
Bibliographic Details
Title: CT colonography interpretation times: effect of reader experience, fatigue, and scan findings in a multi-centre setting.
Authors: Burling, David1, Halligan, Steve2 s.halligan@ucl.ac.uk, Altman, Douglas3, Atkin, Wendy4, Bartram, Clive1, Fenlon, Helen5, Laghi, Andrea, Stoker, Jaap6, Taylor, Stuart2, Frost, Roger7, Dessey, Guido8, De Villiers, Melinda1, Florie, Jasper6, Foley, Shane5, Honeyfield, Lesley1, Iannaccone, Riccardo, Gallo, Teresa9, Kay, Clive10, Lefere, Philippe8, Lowe, Andrew10
Source: European Radiology. Aug2006, Vol. 16 Issue 8, p1745-1749. 5p. 3 Charts, 2 Graphs.
Subjects: Tomography, Diagnosis of colon diseases, Radiography, Radiologists, Medical imaging systems, Clinical competence, Comparative studies, Fatigue (Physiology), Research methodology, Medical cooperation, Regression analysis, Research, Time, Evaluation research, Virtual colonoscopy, Research bias
Geographic Terms: Europe
Abstract: Our purpose was to assess the effect of reader experience, fatigue, and scan findings on interpretation time for CT colonography. Nine radiologists (experienced in CT colonography); nine radiologists and ten technicians (both groups trained using 50 validated examinations) read 40 cases (50% abnormal) under controlled conditions. Individual interpretation times for each case were recorded, and differences between groups determined. Multi-level linear regression was used to investigate effect of scan category (normal or abnormal) and observer fatigue on interpretation times. Experienced radiologists (mean time 10.9 min, SD 5.2) reported significantly faster than less experienced radiologists and technicians; odds ratios of reporting times 1.4 (CI 1.1, 1.8) and 1.6 (1.3, 2.0), respectively (P
Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:Our purpose was to assess the effect of reader experience, fatigue, and scan findings on interpretation time for CT colonography. Nine radiologists (experienced in CT colonography); nine radiologists and ten technicians (both groups trained using 50 validated examinations) read 40 cases (50% abnormal) under controlled conditions. Individual interpretation times for each case were recorded, and differences between groups determined. Multi-level linear regression was used to investigate effect of scan category (normal or abnormal) and observer fatigue on interpretation times. Experienced radiologists (mean time 10.9 min, SD 5.2) reported significantly faster than less experienced radiologists and technicians; odds ratios of reporting times 1.4 (CI 1.1, 1.8) and 1.6 (1.3, 2.0), respectively (P<or=0.001). Experienced and less-experienced radiologists took longer to report abnormal cases; ratio 1.2 (CI 1.1,1.4, P<0.001) and 1.2 (1.0, 1.3, P=0.03), respectively. All groups took 70% as long to report the final five cases as they did with an initial five; ratio 0.7 (CI 0.6 to 0.8), P<0.001. For technicians only, accuracy increased with longer reporting times (P=0.04). Experienced radiologists report faster than do less-experienced observers and proportionally spend less time interpreting normal cases. Technicians who report more slowly are more accurate. All groups reported faster as the study period progressed. [ABSTRACT FROM AUTHOR]
ISSN:09387994
DOI:10.1007/s00330-006-0190-9