CTs Provide Fast, Comfortable, Accurate Imaging

CT scanning—sometimes called CAT scanning—is a noninvasive, painless medical test that helps physicians diagnose and treat medical conditions.  CT scans of internal organs, bone, soft tissue and blood vessels provide greater clarity than conventional x-ray exams.

CT imaging uses special x-ray equipment to produce multiple images or pictures of the inside of the body and a computer to join them together in cross-sectional views of the area being studied. The images can then be examined on a computer monitor or printed.

Spiral CT allows for continuous scanning of the body without interruption, allowing for faster and higher quality imaging. The multi-slice CT is the newest form of spiral CT that acquires multiple channels of data from the multiple rows of detectors for each revolution of the x-ray source. Computer generated images in any special plane are easily produced, insuring maximum diagnostic information.

A computed tomography (CT) scan is a relatively simple, safe, and completely painless examination. The scan produces a series of images to show abnormalities that do not normally show up on conventional X-rays. The results will help make an accurate diagnosis of your condition and also help to determine your best course of treatment.

During the scan, a beam of X-rays is focused on a specific part of your body, such as the spleen, kidneys, or spine. The X-ray tube moves rapidly around this site enabling multiple images to be made from different angles to create a cross-sectional image. An electronic detector records information from the X-ray beam and feeds it to a computer where the image is processed and displayed on a screen. During some CT scans, a contrast medium (commonly called a "dye") is used to outline blood vessels or add contrast to organs so they can be seen more clearly by the scanner.

How does the CT scan technology work?
A CT Scan is short for Computerized Tomography Scan. The scanner is shaped like a donut with the body placed in the central hole. The x-ray source rotates in a circle around the patient, sending x-rays through the patient which are recorded by detectors opposite the x-ray source. The detectors send the information into a computer. The computer processes this information into finely detailed images. Many images or “slices” make up the complete exam.

What is the CT scanning procedure?
When you enter the examination room, you will be asked to lie on the CT table. The technologist will assist you, positioning you correctly. The table will then be moved so that the body part being examined lies in the middle of the scanner ring. You will be able to see out both ends of the scanner. The technologist will be able to see you at all times and will communicate with you via a two-way microphone.

The exam table will gently move into the opening of the scanner. You will feel nothing unusual during your exam. You will hear a whirring sound as the scanner operates. The exam table will move slightly after each scan. It is important that you remain relaxed and still during the exam so the images do not blur. The technologist will speak to you through a two-way intercom system. You will be able to talk to the technologist if you need assistance at any time during the exam.

What is contrast material and will I require it?
Depending on the area of your body that is being examined, a contrast material may be used to provide sharper images. The contrast material may be given either orally and/or by injection. During the injection, you may have a warm, flushed feeling, and have a metallic taste in your mouth. This is a normal bodily response and passes quickly. In very rare instances, the intravenous contrast material may cause allergic symptoms. Please notify your physician immediately if an allergic reaction occurs.

What is CT Angiography or Cardiac CTA?
CT Angiography is a form of rapid vascular imaging to render high definition images of blood vessels throughout the body. We are able to non-invasively assess the coronary arteries in five seconds, obtaining more information than a cardiac catheterization. A 4D display of the beating heart on the computer screen allows detailed assessment of many aspects of the heart. This is done using an arm vein injection. Any artery in the body can be imaged down to 2 mm in size in less than 30 seconds.

What should I do to prepare?
You should arrive at the center approximately 30 minutes before your appointment time for the usual screening procedures and paperwork. You may be asked to change into a patient gown as metal zippers or snaps can interfere with the scan. Before your exam, the CT technologist will obtain a brief medical history. Let the technologist or radiologist know if you have any questions or any of the following conditions:

• If you are pregnant or breast feeding.
• If you have had a Barium Enema or UGI within the last two weeks.
• If you have had brain, heart, ear, eye or other surgeries especially prior to 1980).

Although CT exams are scheduled to minimize waiting time, unexpected delays may occur. Each examination is structured to the individual needs of the patient.

We will advise you about any preparation that may be necessary before the exam. Depending on the type of CT exam, you may be asked to refrain from eating solid food for a number of hours before the exam.

Tell your doctor if your are pregnant or think you might be pregnant.

Also, to do the best possible exam for you, we need to know if you:

• Are Diabetic
• have a history of renal disease
• have allergies to any foods
• have allergies to medications
• have allergies to contrast medium.

Wear loose, comfortable clothing without metal. You may be asked to remove hearing aids, glasses, or dentures for the exam. Please leave valuables, such as jewelry at home. Unless instructed not to do so, take your normally prescribed medication the day of the scan.

When you arrive for your appointment you will be asked to undress, put on a hospital gown, and remove jewelry, dentures, or any other objects that might interfere with the X-ray procedure.

If a contrast agent is needed, a preliminary set of scans may be done before the agent is introduced. Depending on the part of your body being examined, the agent may be given by mouth or injection into a vein. In some cases, additional scans will be obtained after the contrast agent is introduced.

Plan to arrive at least 30 minutes before your scheduled time. This will allow time for any paper work and for changing into your examination gown.

How long will the procedure take?
The exam will take anywhere from 10 to 30 minutes. This allows for preparation as well as time for the computer to generate the images. It is important to remain as motionless as possible during the scan. You may be asked to hold your breath for a few seconds. You will intermittently hear the mechanical sounds of the scanner.

When will I have the results?
Upon completion of the exam, the radiologist will evaluate all of your images and generate a report to your physician. Your physician will then be able to discuss the results in detail with you.

Our staff is highly trained and extremely knowledgeable.  Please contact us with any questions or concerns:  818-933-2580