I was always curious what radiology is about, are you familiar with it?
A little my wife is in Medical school so I get a lot of second hand info. I know Radiology is the science that uses medical imaging to diagnose disease. 
So it includes using x-ray machines and MRI as well?
Yes among others. It includes X-ray radiography, ultrasound, computed tomography (CT), nuclear medicine including positron emission tomography (PET), and magnetic resonance imaging.
Wow, that's a lot of different techniques and treatments involved with radiology. 
It is a medical procedures with the guidance of imaging technologies. A lot more goes into it then what most think.
It sounds like an important step for doctors to use in diagnosing what could be ailing a patient.
The Radiologist is actually a doctor him or her self. They have to go to school for 10 years beyond high school.
Then radiologists should know the proper level of exposure to radiation because high doses sound potentially dangerous.
Yes they can cause cancer, Up to 10% of invasive cancers are related to radiation exposure