...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Radiology >Accuracy of MRI volume measurements of breast lesions: comparison between automated, semiautomated and manual assessment
【24h】

Accuracy of MRI volume measurements of breast lesions: comparison between automated, semiautomated and manual assessment

机译：乳腺病变的MRI容积测量的准确性：自动，半自动和手动评估之间的比较

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of this study was to investigate the efficacy of a dedicated software tool for automated and semiautomated volume measurement in contrast-enhanced (CE) magnetic resonance mammography (MRM). Ninety-six breast lesions with histopathological workup (27 benign, 69 malignant) were re-evaluated by different volume measurement techniques. Volumes of all lesions were extracted automatically (AVM) and semiautomatically (SAVM) from CE 3D MRM and compared with manual 3D contour segmentation (manual volume measurement, MVM, reference measurement technique) and volume estimates based on maximum diameter measurement (MDM). Compared with MVM as reference method MDM, AVM and SAVM underestimated lesion volumes by 63.8%, 30.9% and 21.5%, respectively, with significantly different accuracy for benign (102.4%, 18.4% and 11.4%) and malignant (54.9%, 33.0% and 23.1%) lesions (p < 0.05). Inter- and intraobserver reproducibility was best for AVM (mean difference ± 2SD, 1.0 ± 9.7% and 1.8 ± 12.1%) followed by SAVM (4.3 ± 25.7% and 4.3 ± 7.9%), MVM (2.3 ± 38.2% and 8.6 ± 31.8%) and MDM (33.9 ± 128.4% and 9.3 ± 55.9%). SAVM is more accurate for volume assessment of breast lesions than MDM and AVM. Volume measurement is less accurate for malignant than benign lesions.
机译：这项研究的目的是研究专用软件工具在对比增强（CE）磁共振乳腺摄影（MRM）中进行自动和半自动体积测量的功效。通过不同的体积测量技术重新评估了96例经过组织病理检查的乳腺病变（良性27例，恶性69例）。从CE 3D MRM中自动提取所有病变的体积（AVM）和半自动（SAVM），并与手动3D轮廓分割（手动体积测量，MVM，参考测量技术）和基于最大直径测量（MDM）的体积估计值进行比较。与MVM作为参考方法相比，MDM，AVM和SAVM分别低估了病变体积63.8％，30.9％和21.5％，其中良性（102.4％，18.4％和11.4％）和恶性（54.9％，33.0％）的准确性差异显着和23.1％）病变（p <0.05）。观察者之间和观察者之间的再现性对于AVM最好（平均差异±2SD，1.0±9.7％和1.8±12.1％），其次是SAVM（4.3±25.7％和4.3±7.9％），MVM（2.3±38.2％和8.6±31.8） ％）和MDM（33.9±128.4％和9.3±55.9％）。 SAVM比MDM和AVM更准确地评估乳腺病变。对于良性病变，体积测量对恶性肿瘤的准确性较差。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号