• 主题
高级搜索  >
历史搜索 清空历史
首页> 外国专利> METHOD OF PREOPERATIVELY DETERMINING THE DEGREE OF MALIGNANCY AND THE HISTOLOGICAL SUBTYPE OF MENINGIOMAS

METHOD OF PREOPERATIVELY DETERMINING THE DEGREE OF MALIGNANCY AND THE HISTOLOGICAL SUBTYPE OF MENINGIOMAS

机译：术前确定脑膜瘤的恶性程度和组织学亚型的方法

页面导航
  • 摘要
  • 著录项
  • 相似文献

摘要

The invention relates to medicine, and more particularly to neurosurgery and neuroradiology. The technical result is an increase in the accuracy with which the histological type of neoplasms is identified on the basis of MRI scans in the preoperative period. This technical result is achieved by means of a method of preoperatively determining the degree of malignancy and the histological type of meningiomas which involves the analysis of contrast-enhanced T1-weighted MRI scans, including the steps in which: the intensity of each pixel in the tumour region on contrast-enhanced T1-weighted MRI scans is determined; the intensity of each pixel on intact white matter tissue of the patient is normalized taking into account the coefficient of deviation of a histogram from the average background colour in a database of MRI scans of meningioma patients; a histogram of the normalized intensity of the pixels on the MRI scans is generated; the position of the peak of the histogram is determined and, on the basis of a comparison of the value thereof with the threshold values of different histological types of meningiomas contained in the database, the histological type of the tumour and the corresponding degree of malignancy thereof are determined.
机译：本发明涉及医学，更具体地涉及神经外科和神经放射学。技术结果是在术前根据MRI扫描识别肿瘤的组织学类型的准确性提高。该技术结果是通过术前确定恶性程度和脑膜瘤的组织学类型的方法来实现的，该方法包括分析对比增强的T1加权MRI扫描，包括以下步骤：确定在对比增强的T1加权MRI扫描中的肿瘤区域;考虑到脑膜瘤患者的MRI扫描数据库中直方图与平均背景色的偏差系数，将患者完整白质组织上每个像素的强度归一化;产生在MRI扫描上的像素的归一化强度的直方图;确定直方图峰的位置，并根据其值与数据库中包含的不同组织学类型脑膜瘤的阈值，肿瘤的组织学类型及其相应的恶性程度的比较确定。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

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