Computerized Tomography (CT scan)
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Computerized tomography (CT) is another kind of x-ray exam, more sophisticated and powerful than regular x-rays. By using tomography, the shadows that other parts of the body might cast on the examination area during regular x-rays can be removed by computer enhancement and a better picture results. A CT scanner is used to produce a series of cross-sectional images of the part of the brain or spine that is being examined.
When your doctor orders a CT scan, see our receptionist to schedule an appointment with the x-ray department (sometimes called the radiology department) at the hospital. Be aware that your appointment may be delayed if an emergency scan must be performed on another patient or, rarely, because of mechanical difficulties.
It is very important if you are pregnant, or suspect you may be, to tell the doctor this before he orders a CT scan.
It may be necessary to use a contrast medium (an IODINE solution) to highlight certain parts of the body’s internal structures so that they show up even more vividly on the image. Tell the doctor if you know or suspect that you are allergic to x-ray contrast medium. The contrast medium will be injected into a vein, probably in an arm. The contrast medium may be injected from a syringe, or it may flow gradually from an intravenous bottle.
During the injection, you may feel warm and flushed and have a metallic taste in your mouth. This is a normal reaction to the contrast medium and will last only a minute or so, and it is not cause for concern. Let the technologist know if you begin to itch, feel short of breath, or are otherwise uncomfortable. Listen attentively to the technologist’s instructions, and keep the technologist informed of any discomfort
When the CT scan will be performed with a contrast medium and will focus on your head or on your back, do not eat or drink anything at least three hours before your exam. You may take your regular medications at the normal time. The head CT scan takes 30 to 45 minutes. The back CT scan takes 45 to 90 minutes.
When the CT scan is performed without a contrast medium, there are no restrictions on diet.
If you are a diabetic and are having a CT scan with contrast medium, ask for an early morning appointment time.
You will need to visit with the doctor after the CT scan is completed. Through our office, make an appointment with the doctor following the CT scan. Bring a copy or the original film of the scan with you for your next appointment. The doctor may have indicated to you that he will call you after the exam. In this case an appointment is not necessary.
A CT scan is an expensive exam, costing approximately $500. Please check with your insurance company to make sure this service will be covered. You will receive a bill from the hospital
A. X-ray
B. Computerized tomography scan (CT scan)
C. Magnetic resonance imaging (MRI)
D. Electromyography (EMG)/Nerve conduction velocity (NCV)
E. Myelogram
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