xray ctr45%?
what does ctr 45% mean
Answers:
I'm assuming we are conversation about a chest X-ray
The CTR should not be bigger than 50% because this indicates dilation of the heart (medical possession: cardiomegaly). Cardiomegaly is bad because the heart muscle is not pumping as ably as it can (just like the muscles of your arm work best when they are contained by mid position and are weakest in full stretch, your heart muscle is more ineffecient if your heart is dilated. However a CTR 45% is okay.