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Breast cancer is one of the leading causes of cancer deaths globally.
乳腺癌是全球致死率最高的癌症之一。
About one in eight US women will develop invasive breast cancer over the course of their lifetime.
每八位美国女性中就有一位会在她们的一生中患上浸润性乳腺癌。
And globally, millions of women suffer from breast cancer every year.
全球每年有几百万女性受到乳腺癌的折磨。
But it is quite treatable if detected early.
但是，如果检测及时，乳腺癌还是可以治疗的。
Right now, actually, mammography is the gold standard for breast cancer diagnosis.
其实现在，乳房X线照相术是诊断乳腺癌的黄金标准。
But mammography has a 10 percent chance of missed detection.
但是乳房X线照相术有一成几率漏诊。
Thousands of lives could be lost each year because of this 10 percent.
每年，成百上千的人会因这一成几率丧命。
Today, I’m going to introduce a new technology: photoacoustic imaging.
今天，我要介绍一项新技术：光声成像。
As you can see, it provides a much clearer image, leading to a more accurate diagnosis.
你可以看到，它能产出更清晰的图像，带来更精确的诊断。
It will be affordable, just like an ultrasound scan.
它价格合理，类似一次超声波检查。
It's painless and fast, taking only 15 seconds to scan the entire breast in 3D.
无痛且迅速，三维扫描整个乳房只需要花 15 秒。
And immediate results will be delivered to the patients.
即时结果会发给患者。
Beyond breast imaging, this technology will broadly transform how we see inside our bodies -- and, maybe one day, even allow us to diagnose cancer via a wearable watch-like device that monitors circulating tumor cells.
不只是乳房成像，这项技术会广泛地应用于我们对身体内部的观察，也许有朝一日，甚至可以让我们通过可穿戴手表类装备诊断癌症，监测循环肿瘤细胞。
So what is photoacoustic imaging?
那么，光声成像是什么？
Based on a photoacoustic effect, it is a conversion of light energy into sound energy.
根据光声效应，光能会转化成声能。
We shot a gentle laser pulse onto the tissue.
我们将一束柔和激光束射向组织。
The light is absorbed, raising its temperature a bit.
光被吸收，温度略微升高。
The rise in temperature leads to a tiny fraction of volume expansion, which, in turn, generates acoustic waves.
温度的升高引起了少量体积膨胀，继而产生声波。
Sensors process those sound signals, resulting in a high-resolution image whose level of clarity and detail far surpasses what you've got with traditional CT scans or ultrasound.
传感器通过处理这些声信号，产生高分辨率图像，清晰度和包含的细节远远超过了传统CT或超声检查的效果。
Now, about me.
现在说说我自己。
I started out in industrial optics, but changed direction after my grandparents died of cancer and stroke.
我从工业光学开始，但是在我的祖父母因癌症和中风去世后转变了方向。
I realized that we needed better imaging technology to aid early diagnosis and to provide a better understanding of the diseases.
我意识到我们需要更好的图像技术，帮助早期诊断，让我们更好地掌握疾病。
So I decided to devote myself to biomedical optical imaging.
所以我决定致力于生物医学光成像。
I now research and develop next generation medical imaging with applications ranging from diagnosing cancer to mapping brain functions and navigating medical micro robots for drug delivery.
我现在在研发下一代的医学成像，应用于诊断癌症、记录脑功能、引导医用微型机器人用于药物输送。
Here are some examples showing what we can do.
以下是几个我们能做到的例子。
Take this mouse.
比如这只老鼠。
The mouse has been virtually sliced into 600 pieces from head to toe.
这只老鼠从头到脚被虚拟地切成了 600 片。
It took only 12 seconds to complete the whole body scan.
全身扫描只需要 12 秒。
It looks a little like a mouse carpaccio.
看起来有点像“生鼠片”。
But don't worry, no mice were hurt during the imaging.
但是别担心，成像中老鼠没有受到伤害。
