镂孔式与窗口式压迫板在乳腺X线立体定位中的对比研究

Comparative study of the mesh and window oppressive plate in stereo-localization of mammography

目的:对比镂孔式与窗口式压迫板在乳腺X线立体定位中的准确程度,从而提高定位的准确性。方法:对50例患者均做两种方式的乳腺立体定位,摄片对比并测量两种方式的定位针尖中轴距病灶中心的距离。结果:镂孔式压迫板针尖中轴于病灶中心的距离为1.3770±0.6947 mm,窗口式的距离为2.1780±0.9519 mm,两种方式在乳腺X线立体定位中准确程度有明显差异(t=4.893,P<0.01)。结论:镂孔式压迫板优于窗口式,可作为提高乳腺X线立体定位准确性的有效方法。

Objective： Compare the accuracy of mesh and window oppressive plate in stereo-localization of mammography and improve its accuracy. Methods： Fifty cases were taken two types of location. We compared and measured the distance of the middle tip to the center of the lesion. Results： The distance of the middle tip to the center of the lesion of mesh oppressive plate was 1. 3770±0. 6947 mm and the window plate was 2. 1780±0.9519 ram. The accuracy in two types of location was apparent（t = 4.893,P〈 0.01, ）. Conclusion：Mesh oppressive plate was better than window plate. So it was the useful method in improving the accuracy of stereo-localization of mammography.