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【medical-news】实验超声波方法可减少乳房组织活
Experimental ultrasound method could mean fewer breast biopsies
Last Updated: Friday, December 1, 2006 | 5:14 PM ET
The Associated Press
An experimental ultrasound technique could accurately tell the difference between harmless and malignant lumps in women's breasts, a small study found.
If the technique, called elastrography, holds up in larger studies, it could change the way doctors use biopsies to determine whether women have breast cancer.
The findings were reported at the Radiological Society of North America's annual meeting in Chicago this week.
In a biopsy, doctors use a needle or scalpel to remove breast cells that are examined under a microscope. The technique can be costly and uncomfortable and it may take days or weeks to get the results.
In about eight out of 10 instances, biopsies find lumps that are harmless.
"There's a lot of anxiety, a lot of stress, a lot of fear involved" with biopsies, said Susan Brown, manager of health education for the Susan G. Komen Breast Cancer Foundation in Dallas.
"And there's the cost of leaving work to make a second appointment. If this can be done instead of a biopsy, there would be a real cost reduction."
In the study, the ultrasound technique correctly identified 17 out of 17 cancerous tumours and 105 out of 106 benign ones.
Jonathan Ophir of the University of Texas Medical School in Houston, who pioneered the technique, described it as an extension of one of the oldest tools in medicine: palpation. In palpation, a doctor feels the shape and firmness of tissue.
While traditional ultrasound uses high-frequency sound waves to create a picture of what is going on it the body, elastrography goes a step further by gauging movement.
The device collects data before and after the compression or movement of breast tissue. Stiff tissues show up as darker areas on the resulting images.
"It's like finding a marble in Jell-O," said Dr. Richard Barr, a professor of radiology at Northeastern Ohio Universities College of Medicine, who reported the findings at the meeting. 本人已认领该文编译，48小时后若未提交译文，请其他战友自由认领。 Experimental ultrasound method could mean fewer breast biopsies
实验超声波方法可减少乳房组织活检
Last Updated: Friday, December 1, 2006 | 5:14 PM ET
最后更新：2006年12月1日，星期五：17：14 美国东部时间
The Associated Press
美联社
An experimental ultrasound technique could accurately tell the difference between harmless and malignant lumps in women's breasts, a small study found.
一项小规模研究发现，一种实验超声波技术可能精确分辨女性乳房良性肿块与恶性肿块。
If the technique, called elastrography, holds up in larger studies, it could change the way doctors use biopsies to determine whether women have breast cancer.
如果此称为弹性成像 编译：
实验超声波方法可减少乳房组织活检
12/1/06——美联社报道，一项小规模研究发现，一种实验超声波技术可能精确分辨女性乳房良性肿块与恶性肿块。如果此称为弹性成像的技术能在更大规模研究中有效，它可能改变医生用组织活检确定女性是否患乳腺癌。此发现于本周在芝加哥召开的北美放射学会年会上报告。
在组织活检中，医生使用解剖针或刀取得一部分乳腺细胞，并在显微镜下检查。此技术既不方便又昂贵，并且需要花费数日或数周等待结果。在10例组织活检中，约有8例发现肿块为良性。
达拉斯的苏珊考曼乳腺癌基金会卫生教育主任Susan Brown说道，对于组织活检，“包含有太多的忧虑、压力以及恐惧。如果此技术能够替代组织活检，将大大降低实际费用。”
研究中，此超声波技术正确地将17名癌性肿块患者完全鉴定，将106名良性患者中鉴定出105名。
位于休斯顿的德克萨斯大学医学院的Jonathan Ophir开创了此技术，并将其描述为医学界最古老工具的延伸：触诊。在触诊中，医生能够感受到组织的外形及硬度。传统的超声应用高频率声波创建持续于人体中的图像，而弹性超声通过精确测量移动更进一步。此装置在压迫及移动乳房组织后采集数据，坚硬的组织在结果图像上显示为更暗的区域。东北方俄亥俄州大学医学院放射科教授Dr. Richard Barr 说“这就如同在凝胶中寻找一块大理石。” [标签:content1][标签:content2]
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作者:admin@医学,生命科学 2011-02-20 05:11
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