Over the next 20-30 years 2 percent of all cancers could be the result of a single procedure, according to a new study published in the New England Journal of Medicine. The study suggests that sophisticated Computed Tomography (CT) scans used to identify ailments in the abdomen, chest, and head could be the cause of upwards of 3 million new cancer cases in decades to come.

While the study brings to light important issues, many physicians feel the information, if taken out of context, could be unduly distressing to patients who may mistakenly forgo a life-saving procedure due to statements from the study.

CT scans expose patients to more radiation than traditional x-rays. According to the new study, CT scans are often medically unnecessary and overuse of the procedure could pose a risk to public health.

“CT scanning carries an inherent risk, as do the majority of medical procedures. In most instances, the risks associated with higher radiation doses are greatly outweighed by the benefits of early disease detection,” said Dr. Shailendra Chopra, Lexington Clinic Radiologist. CT scanning generates a three-dimensional picture involving multiple X-ray images, offering an unrivaled view of the human body. CT scanning is an invaluable asset in many medical cases.

The American College of Radiology (ACR) has developed appropriateness criteria which if followed would go a long way in reducing the number of unnecessary CT examinations. Most physicians agree that the best way to prevent unnecessary testing is simply good communication. The reasons for which a CT scan is being ordered should be made clear to the patient by the referring physician.

A patient should raise any questions they may have about the necessity of the test or other alternatives available. There also needs to be clear communication between the referring physicians and radiologists. Many times, the radiologist is able to suggest an alternative low or no radiation test like an ultrasound or an MRI. Even when a CT scan is necessary, a low dose protocol used in performing the scan can reduce the radiation dose. Such protocols are more likely to be in use in an ACR accredited facility.

“When the patient and attending physicians are connected with good communication, they have the ability to consider all of the options and make informed decisions about a patient’s healthcare.” continued Chopra.

For more information regarding CT scanning, please contact the Radiology Department at Lexington Clinic at (859) 258-4181.

Lexington Clinic is a private, primary and specialty-care group practice with 200 providers in 32 specialties working in locations throughout Central Kentucky. Lexington Clinic was founded in 1920 and operates offices in Corbin, Georgetown, London, Nicholasville and Richmond, as well as Lexington.