Cause of satisfaction of search effects in contrast studies of the abdomen

被引:39
作者
Berbaum, KS
Franken, EA
Dorfman, DD
Miller, EM
Krupinski, EA
Kreinbring, K
Caldwell, RT
Lu, CH
机构
[1] UNIV IOWA,DEPT RADIOL,IOWA CITY,IA
[2] UNIV ARIZONA,HLTH SCI CTR,DEPT RADIOL,TUCSON,AZ
[3] SO ILLINOIS UNIV,SCH MED,SPRINGFIELD,IL
[4] MEM MED CTR,SPRINGFIELD,IL 62781
[5] ST JOHNS HOSP,SPRINGFIELD,IL
关键词
diagnostic radiology; radiologists; observer performance; visual perception; radiology education;
D O I
10.1016/S1076-6332(96)80271-6
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 [临床医学]; 100207 [影像医学与核医学]; 1009 [特种医学];
摘要
Rationale and Objectives. Extraintestinal abnormalities visible without contrast material on abdominal radiographs are reported less frequently when contrast examinations are performed. Gaze dwell time was used to determine whether this difference is due to failure by observers to scan plain-film regions of contrast studies or discounting of plain-film abnormalities that were actually scanned. Methods. Patients were included whose contrast studies had elicited the largest reductions in positive responses compared with their plain-film studies in a previous detection experiment. Gaze of 10 radiologists was studied. Results. Significantly less time was spent gazing at non-contrast regions of contrast examinations than at the corresponding regions of radiographs. Errors with radiographs were based primarily on failures of recognition and decision making, whereas errors with contrast studies were based primarily on faulty scanning. Conclusion. Satisfaction of search errors on contrast examinations are caused by reduction in scanning of noncontrast regions.
引用
收藏
页码:815 / 826
页数:12
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