CT Scans and Radiation: Understanding the Risk
At Midland Memorial Hospital, we understand hearing the word
radiation can make patients nervous – and that is a valid concern. A CT scan (computer tomography scan) exposes the body to ionizing radiation, and research suggests radiation exposure, even at low doses, carries an increased risk of cancer over a lifetime.
CT imaging is one of the most powerful tools in modern medicine. It helps diagnose conditions quickly, potentially guide in life-saving treatment, and provide clarity when time matters the most. To keep doses low for our patients, we follow the ALARA principle, which stands for As Low As Reasonably Achievable. Every scan is tailored to the patient’s body size and specific imaging needs. We are accredited by the American College of Radiology (ACR), and we follow their guidelines. Their guidelines help us consistently deliver safe, effective imaging across all patient populations. Our radiologists review our scan protocols annually and our physicist checks our equipment annually.
So yes – CT scans involve radiation, and yes – that exposure is linked to a small increase in lifetime cancer risk. But avoiding a medically necessary scan can carry a far greater risk: missed diagnoses, delayed treatment, or not catching something serious when it matters the most.
We want our patients to feel informed, safe, and supported. If you are concerned about having a CT because of the radiation, have a conversation with your healthcare provider. Alternative radiologic imaging may be possible. We are here to answer your questions and help you make the best decision for your health – with honesty, transparency and care.