CT scan is the best only incase of any abnormalities in your body and your doctor advice too. But there are many advertisement you often seen who encourage the people for the whole body scan. I would not recommend you for the whole body scan without any problem or prone to the disease. This whole body CT scan advertisement is just a scam for the innocent people to check the disease.
But you know the harmful radiation during the CT scan can cause a problem in a healthy person. These radiations can cause a bubble or bulge into the blood vessel or some time can burst the capillaries which can lead a person to cancer. No doubt if a person suffering from a heart disease ct angiography can be effective for the treatment or the Colonoscopy is the best during colon cancer. But if a healthy person CT scan it can cause different abnormalities in various parts of the body.
Many radiologist offer CAT scan , MRI and CT scan at very low cost. Normally they cost about $1000 but they offer only $200 or $500 for the three body parts for the diagnosis of disease. You know CT scan can find out the very tiny lumps in your body parts which can be so small as the one fourth part of an inch. But all the lumps or bulge find in a person can not be harmful. Only few can be harmful for the body. When radiologist tells you about these bulges you can be worried even though you are healthy person.
You must CT scan only when it is highly recommended because of any abnormality in any body part. Otherwise you will spend the thousands dollars just to know that you are healthy person.