Computer-aided detection (CAD) in mammography: Does it help the junior or the senior radiologist?
Computer-aided detection (CAD) in mammography: Does it help the junior or the senior radiologist?
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DOI：
10.1016/j.ejrad.2004.11.021
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发表时间：
2005-04-01
影响因子：
3.3
通讯作者：
Helenon, O
中科院分区：
文献类型：
--
作者：
Balleyguier, C;Kinkel, K;Helenon, O
目的：为了评估计算机辅助检测（CAD）系统的能力，初级和高级放射科医生检测乳腺癌的乳房X线照片，并确定CAD作为教学工具在mammography.Methods的潜力的影响：百活检证实的癌症和100个正常的乳房X线照片，随机分析了CAD系统。计算CAD系统的灵敏度（Se）和特异性（Sp）。在第二阶段，为了模拟日常实践，110个乳房X线照片（97个正常或良性病变，13个癌症）由一名初级和一名高级放射科医生独立检查，有或没有CAD。根据BI-RADS分类标准化解释。结果：对于资深放射科医师，经CAD分析（NS）后，Se从76.9%略微提高到84.6%（1例被资深放射科医师忽略的簇状微钙化病例被CAD检测到）。Sp、PPV和PNV无明显变化。对于初级放射科医生，Se从61.9%提高到84.6%（显著变化）。三个被初级放射科医生忽略的癌症被CAD检测到。结论：CAD乳腺X线摄影被证明是更有用的初级比高级放射科医生，提高灵敏度。CAD系统可能是一个有用的教育工具，乳房X线摄影。(c)2005爱思唯尔爱尔兰有限公司保留所有权利。
Objectives: To evaluate the impact of a computer-aided detection (CAD) system on the ability of a junior and senior radiologist to detect breast cancers on mammograms, and to determine the potential of CAD as a teaching tool in mammography.Methods: Hundred biopsy-proven cancers and 100 normal mammograms, were randomly analyzed by a CAD system. The sensitivity (Se) and specificity (Sp) of the CAD system were calculated. In the second phase, to simulate daily practice, 110 mammograms (97 normal or with benign lesions, and 13 cancers) were examined independently by a junior and a senior radiologist, with and without CAD. Interpretations were standardized according to BI-RADS classification. Sensitivity, Specificity, positive and negative predictive values (PPV, NPV) were calculated for each session.Results: For the senior radiologist, Se slightly improved from 76.9 to 84.6% after CAD analysis (NS) (one case of clustered microcalcifications case overlooked by the senior radiologist was detected by CAD). Sp, PPV and PNV did not change significantly. For the junior radiologist, Se improved from 61.9 to 84.6% (significant change). Three cancers overlooked by the junior radiologist were detected by CAD. Sp was unchanged.Conclusion: CAD mammography proved more useful for the junior than for the senior radiologist, improving sensitivity. The CAD system may represent a useful educational tool for mammography. (c) 2005 Elsevier Ireland Ltd. All rights reserved.