Computerized tomography scan, commonly known as CT scan is a medical imaging method used to see a section of the human body in minute details. CT scan is more effective in diagnosing the ailment than an X-ray as its imaging is so powerful that it can reveal the soft-tissue and making the required area 100 times more clear than conventional X-ray.
Ailments Diagnosed by CT Scan
It can be used for determining various conditions, ranging from head injury, tumor, and fractures, other traumatic injuries like skull fracture or blood clots and even infections. In arthritis also CT scan is used, but primarily in osteoporosis, the non-inflammatory degenerating arthritis. The bone density of the joints that are hurting can be measured accurately with this technique.
Why CT Scan
When an ailment or an injury is hard to detect even in an X-ray, doctors order for CT scan. But apart from providing accurate and detailed image of the ailment or injury CT scan is painless. It also helps the radiologist in finding the exact positions from where to draw a fluid from the joints to run various tests in case of arthritis, biopsies for cancer and eventually decreasing the chances of elaborate surgeries where minimal invasive procedures can be done.
Risks of CT Scan
Computerized Tomography Scan (CT scan) does not pose much risk to the patient; however, there is an allergic reaction that a patient can suffer. In CT scan an intravenous contrast liquid is injected, which is iodine based. This liquid helps in making organs like kidney, liver, and other body structures and blood vessels more visible to the scan. Some patients might get rashes, hives or itching and at times a feeling of warmth running through the body. In most cases they are self-limiting, but in rare occasions anaphylactic allergy may occur. The patient will suffer from severe hives and might have difficulty in breathing, if not treated immediately it can be life threatening. People with kidney problems can suffer from toxicity of kidney and result in kidney failure. But such cases are rare and new intravenous drugs are being developed that eliminates such complications.