摘要
目的 初步探讨数字乳腺X线机与传统乳腺X线机的临床应用效果。方法 系统回顾 2 0 0 0年 6～ 12月连续 80 0例使用传统乳腺X线机和 2 0 0 1年 1～ 8月连续 812例使用数字乳腺X线机的临床及影像资料 ,分别统计各组的摄影体位、曝光次数及检查时间 ,并将术前诊断与病理对照。结果 传统乳腺机组平均摄影体位 4 87个 /人 ,平均曝光时间 5 16次 /人 ,平均检查时间15 2min/人。数字乳腺机组平均摄影体位 4 14个 /人 ,平均曝光次数 4 3 8次 /人 ,平均检查时间5 4min/人。差异均有显著意义 (t值分别为 2 147、2 149、16 2 5 ,P均 <0 0 5 )。病理结果显示传统乳腺机组恶性病变 74例 ,良性病变 83例 ,数字乳腺机组恶性病变 71例 ,良性病变 44例。传统乳腺机与数字乳腺机诊断乳腺癌的敏感度、特异度、准确度分别为 82 4%、87 3 % ;80 7%、84 1% ;81 5 %、86 1%。结论 虽然数字乳腺机对乳腺癌诊断的敏感度、特异度和准确度的提高尚不显著 ,但与传统乳腺机对比 ,数字乳腺机减少了摄影体位和曝光次数 。
Objective To investigate the clinical application of full-field digital mammography (FFDM) and conventional film-screen mammography (FSM)for cancer detection. Methods A review study of 800 patients examined using conventional FSM and 812 patients examined using FFDM was conducted. The number of views and exposes, and the time of examinations were evaluated. The diagnostic results were compared to histopathologic findings in 157 patients for FSM and 115 patients for FFDM. Results The average number of views was 4.87 vs 4.14 per patient on FSM vs FFDM. The average number of exposures was 5.16 vs 4.38 per patient on FSM vs FFDM. The average time of examination was 15.2 min vs 5.4 min per patient on FSM vs FFDM. Histopathology revealed 74 malignant tumors and 83 benign lesions in 157 patients on FSF. FFDM detected 71 malignant tumors and 44 benign lesions in 115 patients. Sensitivity, Specificity and accuracy for FFDM vs FSM were 87.3% vs 82.4%; 84.1% vs 80.7% and 86.1% vs 81.5%, respectively. The difference in cancer detection rate was not statistically significant. Conclusion Although there is no significant difference in the sensitivity, specificity and accuracy in the cancer detection between FSM and FFDM, the FFDM system reduces the number of views and exposes and the time of examination.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
2002年第11期981-984,共4页
Chinese Journal of Radiology
