• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Anwendungen und Trends in der Optischen Analysenmesstechnik >New Approach to the Background Reduction in Optical Mammography
【24h】

New Approach to the Background Reduction in Optical Mammography

机译：光学乳房X线乳腺检查背景减少的新方法

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The most widely used technique for breast cancer diagnostic is X-ray mammography. However, it has intrinsic drawbacks - it is insensitive to one fourth of cancer cases, is itself carcinogenic and can be hardly applied for patients under 40 years old. Therefore, a lot of effort has been already expended in developing non-invasive optical methods for early diagnosis of breast cancer. The idea of a diagnostic application of optical methods is based on the well known fact that for most types of cancer the absolute and relative concentrations of oxy- to deoxy-hemoglobin (Hb) of malignant tissue differ from that of normal tissue [1]. Since the absorption curves of oxy- and deoxy-Hb are intrinsic different, the optical methods can be used for the detection of pathologic tissue. However, strong scattering of the probing radiation prevents the localization and characterization of pathological inclusions in tissue. Another problem is a considerable natural deviations of the optical parameters in normal tissues of different patients which exceeds the changes in the parameters due to pathological modification of a tissue of an individual [2]. This dictates the necessity of optical imaging to compare the parameters of the normal and pathologically modified tissues of individual patients.
机译：最广泛使用的乳腺癌诊断技术是X射线乳腺X线摄影。然而，它具有内在的缺点 - 它对癌症病例中的四分之一不敏感，本身是致癌性的，并且可能几乎不会申请40岁以下的患者。因此，在开发非侵入性光学方法中已经消耗了许多努力，用于早期诊断乳腺癌。光学方法诊断应用的概念基于众所周知的事实：对于大多数类型的癌症，恶性组织的绝对和相对浓度的恶性组织的氧化 - 脱氧 - 血红蛋白（HB）与正常组织的绝对和相对浓度不同[1]。由于氧和脱氧-Hb的吸收曲线是内在的不同，所以光学方法可用于检测病理组织。然而，探测辐射的强烈散射阻止了组织中病理夹杂物的定位和表征。另一个问题是不同患者的正常组织中光学参数的相当大的偏差，其由于个体组织的病理修饰导致参数的变化[2]。这决定了光学成像的必要性，比较个体患者的正常和病理修饰组织的参数。

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