An MRI (Magnetic Resonance Imaging) is a procedure that will provide internal images of joints, soft tissue, structure, organs and much more. An MRI uses radio frequency waves and a magnet to create the images.
Because of the different sequences, you will hear various noises throughout the exam. ADI has the quietest scanners available and our experienced technologists pamper their patients with options such as music, warm blankets and cushions to make the experience as stress free as possible. At ADI, patients are in direct communication with the technologist through an intercom and a call alert button in case the patient needs assistance during the exam.
Let your doctor know if you are claustrophobic. Your physician can order sedation prior to your appointment at ADI.
An MRI can take up to one hour or longer. Sometimes an intravenous contrast is given to determine normal from abnormal tissue.
ADI’s MRI scanners provide the highest quality images available.
For more information, contact ADI today.
CT Scan (CAT Scan)
A CT scan is a low dose, faster kind of X-Ray imaging in which a thin x-ray beam rotates around the patient allowing doctors to see highly detailed images. ADI’s computer combines the images to form highly detailed three-dimensional pictures of the body. This type of imaging significantly helps the physician in determining a diagnosis.
The most common CT scans ordered will be of head, chest, abdomen, or pelvis. Sometimes multiple CT scans are done at the same time, (i.e. the chest and abdomen). Most times, an intravenous dye is given to help the doctors determine normal from abnormal findings. The contrast is ionic, so if you are allergic to iodine let your physician know. You will feel warm while the contrast is injected, but it only lasts for a minute.
If your doctor wants to scan your abdomen, you will have to drink a glass of oral contrast 1 hour prior and another glass 30 minutes prior to the scan. For CT scans with contrast, it is recommended that you do not eat or drink 4 to 6 hours before the scan (except for the contrast for the scan). A CT scan usually only takes 10 to 15 minutes once you are prepped for it.
About The Test
How The Test Is Performed
You will be asked to lie on a table that slides into the center of the scanner.
How The Test Will Feel
The process is fairly painless. If contrast dye is to be administered, an IV will need to be placed in a small vein of a hand or arm or foot.
Why The Test Is Performed
CT provides rapid, detailed images of the patient that can then be reconstructed into three-dimensional images. Intravenous contrast improves evaluation of vessels and improves detection of tumors.
What The Risks Are
CT scans and other x-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. The risk associated with any individual scan is small. If IV contrast is injected, a risk of an allergic reaction in minimal. Statistics will be explained at time of testing.
Nuclear Medicine is a Radiology imaging procedure that is able to image the body on a functional level. Nuclear Medicine utilizes an injected tracer that gives off a small amount of radiation that allows the scanner to image the body. Different tracers are injected that allow the capture of different functions of the body. Typically, there are no side effects to the materials injected for a Nuclear Medicine procedure. The times and patient preparation for each test vary.
Cardiolite® Exam (stress test imaging)
A Cardiolite® exam is a test that is used to check for blockages in the coronary arteries. A Cardiolite® exam consists of two parts, an active phase (stress test) and a resting phase. Typically these are performed on separate days. Both the resting phase and the stress phase consist of an injection of the Cardiolite® radiopharmaceutical into the vein of an arm. It needs to circulate through the body for approximately one hour before the images are acquired. The imaging takes about 15 minutes.
The stress test can consist of walking on a treadmill or a chemical stress test. If the patient is able to walk on a treadmill, they will start walking at a normal pace, with the speed and incline increasing every 3 minutes. We need to get the heart rate up to a target based upon the patient’s age. Once the target heart rate is achieved and the tracer injected, the treadmill is stopped and 30 minutes passes before another set of images are acquired. The images take 15 minutes.
Patients may not have anything to eat or drink 6 hours prior to a stress test. Also, patients need to avoid any foods and drinks that contain caffeine for 24 hours prior to the stress test. Certain blood pressure medications may interfere with a treadmill stress test. Please check with your referring physician to make sure your medicines are okay. A physician will be present during all stress tests to monitor the electrocardiogram.
A bone scan is a test that checks for a variety of bone diseases, including cancer, stress fractures, fractures, and bone infection. A bone scan consists of an injection of a small amount of a radioactive substance similar to calcium that attaches to the bone. The tracer needs to circulate through the body for approximately 3 hours before the images are obtained. You are free to leave the imaging center during the 3 hours. The images will take about 45 minutes upon returning. There is no special preparation for a bone scan and we encourage ample hydration for the scan.
Hepatobiliary Scan (Hida Scan)
A Hida scan is an exam which allows for the determination of the functioning of the gallbladder. Typically an ultrasound can be done prior to a Hida scan. A Hida scan consists of an injection through an I.V. of a small amount of a radioactive tracer which allows the camera to see the process of the liver producing bile (which is what the gallbladder stores). It takes about 1 hour for this process to occur. Images will be performed during this time. Once the gallbladder is filled with bile, a second injection will be given of an enzyme which the body naturally produces. This is infused slowly over 15 minutes. Images are acquired for up to 45 minutes during the second part of this exam to image the gallbladder working. A computer program is then run to calculate how well the gallbladder is functioning. From start to finish, this exam will take about 2 hours. A DVD can be brought and watched during this exam. No food or drink for 6 hours prior to the exam.
Images how the kidneys are functioning. Can take up to 1 hour. No special preparation for this exam is needed.
This exam evaluates “hot” or “cold” thyroid nodules. Can take up to 1 hour. No special preparation for this exam is needed.
Gastric Emptying Scan
Determines how quickly the stomach empties food. Can take up to 2.5 hours. Nothing to eat or drink 6 hours prior to this exam.
Checks to see if there is a parathyroid adenoma. Can take up to 3.5 hours. No special preparation for this exam is needed.
WHAT IS PET/CT?
PET/CT combines two scanning techniques, PET and CT. The PET (positron emission tomography) shows different body functions while the CT (computed tomography) scan provides a detailed view of structural anatomy. The combined technology enables physicians to obtain highly-defined 3D images of the body.
WHY DO I NEED A PET/CT EXAM?
One of the best ways to fight disease is through early detection. PET/CT exams enable physicians to diagnose potential health issues and identify the best plan of treatment. A PET/CT scan may help reduce the need for additional biopsies or surgical procedures.
Prior to your exam, you will receive an injection of FDG (fluorodeoxyglucose), which is a harmless low-dose radiolabeled sugar. This is used to see how quickly the substance gets processed in your body. Diseased cells process the material more rapidly than the healthy tissue.
The PET scan captures the reaction and helps your physician identify the problem areas. When the functional images from PET are combined with the structural map from the coordinating CT scan, your physician can make an accurate diagnosis.
WHAT SHOULD I EXPECT DURING A PET/CT EXAM?
Our technologist or your physician will explain the details regarding your upcoming exam. In general, here is what can be expected:
- Prior to the exam, you will receive a small injection of FDG in your arm. Following the injection, you will be asked to relax for about 90 minutes so the sugar can circulate.
- You will be asked to lie still during the exam. Any movement can interfere with the results.
- In order to acquire the best possible images, the table will move during the procedure. You may hear some noise coming from the scanner, but you should not be alarmed.
- The CT portion of the exam is first, followed by the PET scan.
- The technologist will process the pictures. Once the images are analyzed by ADI’s board certified, fellowship trained radiologists, the results will be sent to your referring physician.
WHAT SHOULD I EXPECT AFTER THE EXAM?
- Following the PET/CT exam, it is important that you drink plenty of liquid. This will help clear your body of the radiolabeled sugar.
- Unless otherwise specified, you can resume all normal activities after leaving ADI.
HOW DO I PREPARE FOR THE EXAM?
Preparation and length of a PET/CT exam will depend on the type of scan your physician ordered. In general, please follow the guidelines below:
- Prior to the exam, please inform the technologist if you are:
- Pregnant or breast-feeding
- If you have ever encountered an allergic reaction to an enhancing agent or iodine.
- No exercise is recommended 24 hours prior to the exam.
- Do not eat or drink anything except water after midnight prior to your exam.
- If you are taking medications, use only water to help you swallow.
- Eat a low-carb meal the night before the exam.
- Wear warm comfortable clothing, preferably without zippers.
- Your visit typically will be no more than three hours.
- Family members are welcome, but will not be allowed in the room once the exam starts.
- If you are unable to make it to your exam, please call ADI before 5 p.m. on the day prior to your scheduled appointment.
- It is important that you arrive to your appointment on time.
- Please contact us at 319.236.2700, if you have any questions regarding your procedure.