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【技术产业】便携式乳腺扫描仪可在眨眼间筛查乳腺癌症

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http://www.sciencedaily.com/releases/2010/10/101027090838.htm

Portable Breast Scanner Allows Cancer Detection in the Blink of an Eye

ScienceDaily (Oct. 27, 2010) — Women could have a fast test for breast cancer and instantly identify the presence of a tumor in the comfort of their own home thanks to groundbreaking new research from the University of Manchester.

Professor Zhipeng Wu has invented a portable scanner based on radio frequency technology, which is able to show in a second the presence of tumours -- malignant and benign -- in the breast on a computer.

Using radio frequency or microwave technology for breast cancer detection has been proven by researchers in the US, Canada and UK. However, up to now, it can take a few minutes for an image to be produced, and this had to be done in a hospital or specialist care centre.

Now Professor Wu, from the University's School of Electrical and Electronic Engineering, says concerned patients can receive real-time video images in using the radio frequency scanner which would clearly and simply show the presence of a tumour.

Not only is this a quicker and less-intrusive means of testing, it also means women can be tested at GP surgeries, which could help dramatically reduce waiting times and in some cases avoid unnecessary X-ray mammography. The scanner could also be used at home for continuous monitoring of breast health.

The patented real-time radio frequency scanner uses computer tomography and works by using the same technology as a mobile phone, but with only a tiny fraction of its power.

This makes it both safe and low-cost and the electronics can be housed in a case the size of a lunch box for compactness and portability. Other existing systems are much larger.

Breast cancer is the second biggest killer in women, accounting for 8.2% of all cancer deaths. October is National Breast Cancer Awareness month.

The usual way of detecting breast cancer up to now is mammography, which works well for women over the age of 50 and can give results of up to 95% accuracy.

But it is far less effective for younger women. The detection rate could be as low as 60% for women under the age of 50, which accounts for 20% of all breast cancer cases.

At that stage it is even more important get accurate diagnosis. Early diagnosis and treatment could save thousands of lives.

The main difference between the two methods is that mammography works on density, while radio frequency technique works on dielectric contrasts between normal and diseased breast tissues.

In Professor Wu's design, as soon as the breast enters the cup an image appears on screen.

The presence of a tumour or other abnormality will show up in red as the sensor detects the difference in tissue contrasts at radio frequencies. Malignant tissues have higher permittivity and conductivity and therefore appear differently than normal ones to a screen.

Up to 30 images are generated every second, meaning a breast scan could be over in a far shorter time than they are currently.

Professor Wu said: "The system we have is portable and as soon as you lie down you can get a scan -- it's real-time.

"The real-time imaging minimises the chance of missing a breast tumour during scanning.

"Other systems also need to use a liquid or gel as a matching substance, such as in an ultrasound, to work but with our system you don't need that -- it can be done simply in oil, milk, water or even with a bra on.

"Although there is still research to be done, the system has great potential to bring a new way for breast cancer diagnosis.

"This will benefit millions of women in both developed and developing countries bearing in mind that one in nine women may develop breast cancer in their lifetime."

Professor Wu submitted his innovation of the sensor system to the IET Innovation Awards. The technology has been shortlisted in both Electronics and Measurement in Action categories. The winners will be announced in November.

A new portable scanner based on radio frequency technology can show in a second the presence of tumors -- malignant and benign -- in the breast on a computer. The red dot indicates the presence of a tumor. (Credit: Image courtesy of University of Manchester)

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2010-10-30 16:43 浏览 : 793 回复 : 2

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Portable Breast Scanner Allows Cancer Detection in the Blink of an Eye

便携式乳腺扫描仪使眨眼之间癌症监测成为可能

ScienceDaily (Oct. 27, 2010) — Women could have a fast test for breast cancer and instantly identify the presence of a tumor in the comfort of their own home thanks to groundbreaking new research from the University of Manchester.

科学日报（2010年10月27日）---由于曼彻斯特大学新的突破性研究，女性能够在她们自己家中舒舒服服地进行快速的乳腺癌检测，并且马上确定肿瘤的存在。

Professor Zhipeng Wu has invented a portable scanner based on radio frequency technology, which is able to show in a second the presence of tumours -- malignant and benign -- in the breast on a computer.

Zhipeng Wu教授已经发明了一个以无线电频率技术为基础的便携式扫描仪，它能够立刻在电脑上显示乳腺内肿瘤（恶性和良性）的存在。

Using radio frequency or microwave technology for breast cancer detection has been proven by researchers in the US, Canada and UK. However, up to now, it can take a few minutes for an image to be produced, and this had to be done in a hospital or specialist care centre.

利用无线电频率或微波技术进行乳腺癌检测已经被美国、加拿大和英国的研究人员们所证实。然而，直到现在，它能够花几分钟来产生影像，并且这必须在医院或专科护理中心进行。

Now Professor Wu, from the University's School of Electrical and Electronic Engineering, says concerned patients can receive real-time video images in using the radio frequency scanner which would clearly and simply show the presence of a tumour.

现在来自曼彻斯特大学电子电气工程学院Wu教授说，忧虑的患者通过使用将清楚和单纯的显示肿瘤存在的无线电频率扫描仪能够得到实时的视频图像。

Not only is this a quicker and less-intrusive means of testing, it also means women can be tested at GP surgeries, which could help dramatically reduce waiting times and in some cases avoid unnecessary X-ray mammography. The scanner could also be used at home for continuous monitoring of breast health.

这不仅是较快和更少侵入的检测方法，而且它意味着女性能够在全科外科诊所被检测，这能够显著地帮助降低等待时间，并且在一些病例中避免不必要的乳房X线照相术。这种扫描仪也能够在家中用来进行乳腺健康的持续性监测。

The patented real-time radio frequency scanner uses computer tomography and works by using the same technology as a mobile phone, but with only a tiny fraction of its power.

这项专利实时无线电频率扫描仪使用计算机X射线断层术，并靠使用与手机一样的技术工作，但是只有它能量的一小部分。

This makes it both safe and low-cost and the electronics can be housed in a case the size of a lunch box for compactness and portability. Other existing systems are much larger.

这使它是安全和低花费的，并且为了小巧和轻便，电子器件可被封装入一个如午餐盒大小的容器中。其它现有系统是大的多的。

Breast cancer is the second biggest killer in women, accounting for 8.2% of all cancer deaths. October is National Breast Cancer Awareness month.

乳腺癌是女性中第二大杀手，占所有癌症死亡的8.2%。10月是国家乳腺癌推广月。

The usual way of detecting breast cancer up to now is mammography, which works well for women over the age of 50 and can give results of up to 95% accuracy.

直到现在，常用的检测乳腺癌的方法是乳房X线照相术，它对50岁以上的女性效果良好，并且提供准确性高达95%的结果。

But it is far less effective for younger women. The detection rate could be as low as 60% for women under the age of 50, which accounts for 20% of all breast cancer cases.

但是它对较年轻女性有效性低得多。对低于50岁的女性，检出率可能低到60%，它占全部乳腺癌病例的20%。

At that stage it is even more important get accurate diagnosis. Early diagnosis and treatment could save thousands of lives.

在那个阶段，获得准确的诊断是十分重要的。早期诊断和治疗能够拯救成千上万人的生命。

The main difference between the two methods is that mammography works on density, while radio frequency technique works on dielectric contrasts between normal and diseased breast tissues.

两种方法主要的不同是乳房X线照相术致力于密度，而无线电频率技术致力于正常和患病乳腺组织之间电介质比较。

In Professor Wu's design, as soon as the breast enters the cup an image appears on screen.

在Wu教授的设计中，乳腺一进入杯子，影像就出现在屏幕上。

The presence of a tumour or other abnormality will show up in red as the sensor detects the difference in tissue contrasts at radio frequencies. Malignant tissues have higher permittivity and conductivity and therefore appear differently than normal ones to a screen.

当传感器通过无线电频率发现组织比较的差异时，肿瘤或其它畸形的存在将呈现红色。恶性组织有较高的透电率和传导率，因此在屏幕与正常组织比表现不同。

Up to 30 images are generated every second, meaning a breast scan could be over in a far shorter time than they are currently.

每秒钟有多达30个影像产生，意味着乳腺扫描能够在比现在更短的时间内完成。

Professor Wu said: "The system we have is portable and as soon as you lie down you can get a scan -- it's real-time.

Wu教授说：“我们有的这个系统是便携的，你一躺下来，你就能够做一次透视，它是实时的。”

The real-time imaging minimises the chance of missing a breast tumour during scanning.

这种实时影像将扫描期间漏掉乳腺肿瘤的机会最小化。

"Other systems also need to use a liquid or gel as a matching substance, such as in an ultrasound, to work but with our system you don't need that -- it can be done simply in oil, milk, water or even with a bra on."

“其它系统还需要使用一种液体或凝胶作为一种匹配的物质（例如在超声中）以起作用，但是用我们的系统，你不需要这个，它能够在油、牛奶、水中或者甚至带着胸罩简单地完成。

Although there is still research to be done, the system has great potential to bring a new way for breast cancer diagnosis.

尽管这仍有研究需要完成，但是这个系统有巨大的潜力带来乳腺癌诊断新的方法。

"This will benefit millions of women in both developed and developing countries bearing in mind that one in nine women may develop breast cancer in their lifetime."

“考虑到1/9的女性在其一生中可能患乳腺癌，这将有益于发达和发展中国家中无数的女性。”

Professor Wu submitted his innovation of the sensor system to the IET Innovation Awards. The technology has been shortlisted in both Electronics and Measurement in Action categories. The winners will be announced in November.

Wu教授向IET发明奖项提交他的传感器系统发明。这项技术已经入围行动类别的电子器件和测量。将于11月宣布获奖者。

2010-11-05 23:26

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便携式乳腺扫描仪使眨眼之间癌症监测成为可能

科学日报（2010年10月27日）---由于曼彻斯特大学新的突破性研究，女性能够在她们自己家中舒舒服服地进行快速的乳腺癌检测，并且马上确定肿瘤的存在。

Zhipeng Wu教授已经发明了一个以无线电频率技术为基础的便携式扫描仪，它能够立刻在电脑上显示乳腺内肿瘤（恶性和良性）的存在。

利用无线电频率或微波技术进行乳腺癌检测已经被美国、加拿大和英国的研究人员们所证实。然而，直到现在，它能够花几分钟来产生影像，并且这必须在医院或专科护理中心进行。

现在来自曼彻斯特大学电子电气工程学院Wu教授说，忧虑的患者通过使用将清楚和单纯的显示肿瘤存在的无线电频率扫描仪能够得到实时的视频图像。

这不仅是较快和更少侵入的检测方法，而且它意味着女性能够在全科外科诊所被检测，这能够显著地帮助降低等待时间，并且在一些病例中避免不必要的乳房X线照相术。这种扫描仪也能够在家中用来进行乳腺健康的持续性监测。

这项专利实时无线电频率扫描仪使用计算机X射线断层术，并靠使用与手机一样的技术工作，但是只有它能量的一小部分。

这使它是安全和低花费的，并且为了小巧和轻便，电子器件可被封装入一个如午餐盒大小的容器中。其它现有系统是大的多的。

乳腺癌是女性中第二大杀手，占所有癌症死亡的8.2%。10月是国家乳腺癌推广月。

直到现在，常用的检测乳腺癌的方法是乳房X线照相术，它对50岁以上的女性效果良好，并且提供准确性高达95%的结果。

但是它对较年轻女性有效性低得多。对低于50岁的女性，检出率可能低到60%，它占全部乳腺癌病例的20%。

在那个阶段，获得准确的诊断是十分重要的。早期诊断和治疗能够拯救成千上万人的生命。

两种方法主要的不同是乳房X线照相术致力于密度，而无线电频率技术致力于正常和患病乳腺组织之间电介质比较。

在Wu教授的设计中，乳腺一进入杯子，影像就出现在屏幕上。

当传感器通过无线电频率发现组织比较的差异时，肿瘤或其它畸形的存在将呈现红色。恶性组织有较高的透电率和传导率，因此在屏幕与正常组织比表现不同。

每秒钟有多达30个影像产生，意味着乳腺扫描能够在比现在更短的时间内完成。

Wu教授说：“我们有的这个系统是便携的，你一躺下来，你就能够做一次透视，它是实时的。”

这种实时影像将扫描期间漏掉乳腺肿瘤的机会最小化。

“其它系统还需要使用一种液体或凝胶作为一种匹配的物质（例如在超声中）以起作用，但是用我们的系统，你不需要这个，它能够在油、牛奶、水中或者甚至带着胸罩简单地完成。

尽管这仍有研究需要完成，但是这个系统有巨大的潜力带来乳腺癌诊断新的方法。

“考虑到1/9的女性在其一生中可能患乳腺癌，这将有益于发达和发展中国家中无数的女性。”

Wu教授向IET发明奖项提交他的传感器系统发明。这项技术已经入围行动类别的电子器件和测量。将于11月宣布获奖者。
（丁香）

2010-11-05 23:27

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