官方APP下载:英语全能特训(微信小程序版,支持苹果手机、安卓手机)
创办于2003年
UNSV记不住?那就记中文谐音“忧安思危”吧!
  Slow and Steady Wins the Race!
UNSV英语学习频道 - Slow and steady wins the race!
公众微信服务号
英语全能特训(微信公众服务号)
UNSV英语学习频道淘宝网店
客服短信:18913948480
客服邮箱:web@unsv.com
初级VIP会员
全站英语学习资料下载。
¥98元/12个月

HEALTH REPORT - 3-D Technology Saves Lives

阅读次数:


VIP会员专享下载:(非VIP会员无权下载!如果想下载,但还不是VIP会员,请点此订购
下载方式:使用鼠标右键(注意是鼠标右键!)点击下面的MP3音频/MP4视频链接,然后选择“另存为…”。
MP3节目录音 MP3节目录音  PDF节目文稿 PDF节目文稿  MP3同步字幕 MP3同步字幕 
文章正文
同步字幕
A woman undergoes a mammography exam, a special type of X-ray of the breasts used to detect tumors.
A woman undergoes a mammography exam, a special type of X-ray of the breasts used to detect tumors.

From VOA Learning English, this is the Health Report.

Three-dimensional technology -- known as three-D -- gives depth to objects that would otherwise appear two-dimensional, or flat. Three-D makes movies and video games look more realistic. And now it could help save lives.

For years, mammograms have played an important role in finding breast cancer. But these X-ray pictures of the human breast often miss dangerous lumps or tumors.

And they also produce false positives. A false positive wrongly appears to show suspicious tissue. And that causes painful, unnecessary biopsies to examine that tissue.

A new study shows that three-D technology could change the way doctors look for breast cancer.

When Zulima Palacio discovered she had breast cancer, it already had reached stage three. That means that the cancer was very dangerous.

It is difficult to see tumors in dense breast tissue using standard 2-D mammography.
It is difficult to see tumors in dense breast tissue using standard 2-D mammography.

"Even a month before it was detected, I went for a sonogram and they told me, 'You're fine, go home.'"

Ms. Palacio is now cancer free. But the standard two-dimensional mammogram missed all three of her tumors.

Many doctors - including cancer surgeon Negar Golesorkhi - say standard mammography does not find enough cancerous tumors. She says looking for cancer in dense, thick breast tissue is like looking for a polar bear in a snow storm. In other words, it is very difficult.

"When we look for cancer on a mammogram in dense breast tissue, we're looking for a polar bear in a snow storm, so it would be very difficult to find."

A few years ago, the U.S. Food and Drug Administration approved the use of three-D mammography. And three-D technology found Jennifer Hoeft's tumor.

"It was a very small tumor. It was only an 8 millimeter tumor that couldn't be felt."

Sarah Friedewald is a doctor at Lutheran General Hospital in the U.S. state of Illinois. She led a study to compare the results of three-D and two-D mammography from nearly a half million patients.

Dr. Friedewald says they found more cancers using three-D mammograms versus, or compared to, two-D mammograms. And they found more cancers that kill.

"We found invasive cancers or the cancers that we worry about, the ones that could potentially kill people more frequently in women who had the 3-D mammogram versus the women who just had the 2-D mammogram. At the same time, fewer people had to come back for unnecessary testing which creates unnecessary anxiety."

The White House in Washington is bathed in pink light to celebrate Breast Cancer Awareness Month.
The White House in Washington is bathed in pink light to celebrate Breast Cancer Awareness Month.

Dr. Friedewald says tumors that are difficult to see on a standard mammogram are easy to find in 3 dimensions.

Jennifer Hoeft is grateful that she had three-D mammography.

"I truly, truly believe that the 3-D mammography is what caught my cancer early and is allowing me to pretty much live my life the way I want to."

Dr. Friedewald told VOA that she expects three-D to replace the usual two-D mammograms in time. Her study was published in the Journal of the American Medical Association.

And from VOA Learning English, that's the Health Report.

I'm Anna Matteo.

网友的学习评论(0条):
版权所有©2003-2019 南京通享科技有限公司,保留所有权利。未经书面许可,严禁转载本站内容,违者追究法律责任。 互联网经营ICP证:苏B2-20120186
网站备案:苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台