Markus J B, Somers S, O'Malley B P, Stevenson G W
Department of Radiology, McMaster University Medical Centre, Hamilton, Ont., Canada.
Radiology. 1990 Apr;175(1):155-6. doi: 10.1148/radiology.175.1.2315474.
The images from 60 double-contrast barium enema (DCBE) examinations of patients who had also undergone colonoscopy were reviewed independently by three radiologists. The average radiologist detected 70.2% of the 46 radiologically visible lesions. The reports of the individual observers were combined to generate double and triple reading reports. The corresponding average double and triple reading combinations resulted in detection of 83.3% and 89.0%, respectively, of the visible lesions. These increases in sensitivity over those of the readings of the single observers were clinically and statistically significant. They were, however, accompanied by some decreases in specificity. The results confirm the concept that false-negative perception error is a major problem in the interpretation of DCBE examinations and indicate that multiple reading is an effective way to reduce this error.
对60例同时接受过结肠镜检查的患者的双重对比钡灌肠（DCBE）检查图像，由三位放射科医生独立进行回顾分析。平均每位放射科医生检测出了46个放射学可见病变中的70.2%。将个体观察者的报告合并，生成双重阅读报告和三重阅读报告。相应的平均双重阅读和三重阅读组合分别检测出了83.3%和89.0%的可见病变。与单一观察者阅读相比，这些敏感性的提高在临床和统计学上均具有显著意义。然而，特异性也有所下降。结果证实了假阴性感知误差是DCBE检查解读中的一个主要问题这一概念，并表明多次阅读是减少这一误差的有效方法。
