• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Physiology, Function, and Structure from Medical Images pt.2; Progress in Biomedical Optics and Imaging; vol.7,no.29 >The Effect of Edge-Preserving Image Smoothing on Automatic Colonic Polyp Detection for CT Colonography
【24h】

The Effect of Edge-Preserving Image Smoothing on Automatic Colonic Polyp Detection for CT Colonography

机译：保留边缘的图像平滑对自动结肠结肠息肉的CT结肠造影检测的影响

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

Low radiation dose requirements create relatively noisy images that eontrihute to high numbers of false positive detections in CAD for CT colonography. Presumably image denoising techniques such as non-linear, edge-preserving smoothing filters can improve automatic colonic polyp detection in CT colonography by reducing overall per patient false positive rates. Here, we have evaluated multiple edge-preserving smoothing filters to determine whether this is so. Prone and supine scans from 81 asymptomatic, average-risk adults with adenomatous polyps were studied with and without smoothing. FROC curves were generated to analyze CAD results. A single, clinically relevant operating point was compared between the best smoothing filter results and the unsmoothed data. Improvement in performance was observed, but the differences were not found to be statistically significant for average dose CT colonography.
机译：低辐射剂量要求可创建相对嘈杂的图像，从而使CT结肠造影的CAD中出现大量假阳性检测。据推测，诸如非线性，边缘保留平滑滤波器之类的图像去噪技术可以通过降低每位患者的总体假阳性率来改善CT结肠造影中的结肠自动息肉检测。在这里，我们评估了多个保留边缘的平滑滤波器，以确定是否是这样。研究了81名无症状，平均风险的患有腺瘤性息肉的成年人的俯卧和仰卧扫描，无论是否平滑。生成FROC曲线以分析CAD结果。比较了最佳平滑过滤器结果和未平滑数据之间的单个临床相关工作点。观察到性能有所改善，但是对于平均剂量CT结肠造影，差异没有统计学意义。

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