We encounter radiation in medical procedures such as X-rays and CT scans.

比如我们会遇到医学检查的辐射 ，像 X 光和 CT 扫描。

There, they have portable CT scanners.

在那里，他们有便携式 CT 扫描仪。

But the CT scans uncovered something else.

不过CT扫描还揭示了其它情况。

This can be confirmed with the chest CT.

可进一步通过胸部CT确认。

There are also other environmental risk factors like ionizing radiation, like from chest X-rays and CT scans.

还有一些环境因素如胸部X线或CT扫描等电离辐射，也是高危因素。

And MRI or a CT imaging may be used to detect structural damage or abnormalities in the brain.

MRI或CT成像可用于检测脑部的结构性损伤或异常。

CT scanning is a medical technology that allows us to look inside an object.

CT 扫描是一项医学技术，用于观察物体的内部。

CT scanning has opened a new door into dinosaur behavior.

CT扫描打开了一扇了解恐龙行为的大门。

Next, CT scanning is used to create virtual slices through the skeleton.

接下来，CT 扫描骨架，以用来创建虚拟骨骼部分。

CT scans in this country take half an hour to an hour and they're, you know, extremely expensive things.

在美国，拍 CT 需要半小时到一小时，你知道，就是那个贵死人的东西。

But with modern technology like CT scans, we can watch the science happen.

但是有了现代科技，比如 CT 扫描，我们可以看到科学的发展。

Finally, a CT or MRI should be done to look for the cause.

最后，应行CT或MRI检查以发现病因。

Instead of the CT scan Ms Williams wanted, a doctor did a fruitless ultrasound.

威廉姆斯想要做CT扫描检查，医生没有给她做，而是做了一个没用的超声波检查。

And the article also says the accuracy of CT testing is just over 75%.

文章还说，CT检测的准确性刚刚超过75%。

The process also imposes an extra workload on the CT room.

这个过程也给 CT 室带来了额外的工作量。

Now compared to chest X-rays, chest CT gives a much more detailed view.

与胸片相比，胸部CT可以给出更多具体的细节和信息。

A CT scanner works by sending a fan or cone of X-rays through a patient to an array of detectors.

CT扫描的工作原理是通过向探测器发射扇形或锥形的X光。

There are also some CT, MRI, and EEG changes that can help to make the diagnosis.

CT、MRI和脑电图也会有一些改变，有助于诊断。

Chest CT can be used to evaluate if the cancer has spread to nearby lymph nodes.

胸部CT可以用来评价食管癌周围淋巴结的转移状况。

But if you don't have either one of those, then you're given a CT scan.

但如果你两者都不是，你会被安排拍 CT。