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Imaging Procedures

We are continuously assessing our ability to provide scheduled diagnostic services procedures. At this time, we encourage all patients to continue to attend their appointment unless otherwise directed. Please know that we are taking all recommended measures to protect your safety. Here’s someimportant informationto help you prepare for your exam.

Shared Health supports patient care with a variety of Diagnostic Imaging Services. You can learn more about each kind of imaging procedure below.

Bone Density

A bone density scan checks your bone mineral density to see how strong your bones are. To perform the bone density scan, an enhanced form of x-ray technology called dual-energy x-ray absorptiometry (DEXA) is used. A small x-ray beam is used to take a picture of the hip and lower back. The x-rays used are low-dose, so the amount of radiation used is extremely small.

Bone density scans measure the density of bones in the spine and hip, and possibly the forearm or total body. This information will help your practitioner determine your risk of broken or fractured bones due weakness in your bones.

How to prepare:

  • Preparation instructions will be mailed to you with your appointment letter.
  • You should not take any calcium supplements for 2 days prior to the test, but you may continue with all other medications.
  • Do not wear any clothing with zippers or other metal (including underwire bras).
  • Do not have any diagnostic imaging tests involving contrast media performed for at least two weeks prior to your test (e.g. CT scan, Nuclear Medicine, stomach x-ray, bowel x-ray or MRI). If you are unsure, speak to your medical practitioner.
  • Please bring your completed questionnaire (mailed along with your appointment letter) to your appointment. The questionnaire asks questions about your past x-rays, fractures, hip or spine surgeries, family history of hip fractures and age of menopause. If you did not receive the questionnaire, please arrive 15 minutes early to allow extra time to fill one out. Note: you will need your medication list for this questionnaire.

What to expect:

  • A Nuclear Medicine Technologist will perform the bone density scan. You will be asked to remove your shoes so that you can be weighed and your height measured.
  • During the procedure, you will lie flat on a bed and an x-ray camera will be positioned over one of your hips and lower back. A large foam block will be placed under your knees for the spine scan. The scanner moves back and forth over top of you but does not touch you.
  • The weight limit for our bed is 204 kilograms (450 pounds).
  • A bone density scan is a simple, non-invasive procedure. Like a regular x-ray scan, the bone density test is painless, though you may be asked to hold an uncomfortable position for a short time. The appointment will last approximately 15 minutes, and results will be sent to your practitioner.
  • 有骨质疏松症的小册子中可用waiting room and a video available for your viewing.


  • 你的技术员不能为您提供diagnosis or test results. The practitioner who ordered the test will contact you to discuss results and next steps with you.

Computed Tomography (CT)

A Computed Tomography is an examination that uses specialized x-ray equipment to make detailed pictures of structures inside the body. It can be used to study many parts of your body, including organs, blood vessels, bones and spinal cord. Sometimes, a contrast material is injected into the blood to assess organs and structures that would otherwise not be seen, or to assess the function of certain organs.

Diagnostic Ultrasound

Diagnostic Ultrasound uses sound waves to obtain pictures of the internal structures and organs in your body. Most people know about ultrasound because it is used to capture pictures during pregnancy. But ultrasound is also used to look at many other organs such as the kidneys, liver, uterus, heart, and blood vessels.

How to prepare:

  • The instructions for how to prepare for an ultrasound examinations will be provided to you when the appointment is made. Depending on why you are having an ultrasound, you may have no preparation at all. For some tests, you may be required to stop eating and drinking for up to six hours before the test. In other tests, such as pelvic ultrasounds, you will be asked to drink water and not urinate before the exam; a full bladder creates better images of the uterus, ovaries and/or prostate.

What to expect:

  • At your ultrasound, the technologist – called a sonographer – will ask you to lie down on an examination table. Gel will be applied to your skin where the test is being done. The sonographer will move a small hand-held device above the area needing examination. As the device is moved over your body, the sonographer will apply pressure, which is necessary to capture the required images, so you may experience some discomfort.
  • Every ultrasound exam is different. While most exams will take 30 minutes to complete, some exams will take as little as 10 minutes and others may take up to an hour. Please be patient; it is important for the sonographer to take all the images needed by the radiologist to provide your doctor with a complete report to your doctor.


  • Your sonographer cannot provide results during the ultrasound. When your exam is complete, a specialized doctor called a radiologist will look at the images and send a report to your doctor. Most often, results are provided to your doctor within a few days. However, if your ultrasound exam is for an urgent medical condition, your doctor will receive the results sooner.

Electrocardiography (EKG)

An EKG – or electrocardiogram test – is used to examine how your heart is functioning. It tracks patterns in your heartbeat and rhythm so that your doctor can diagnose various heart conditions.

How to prepare:

  • No special preparations are required for an EKG. You will be required to remove your top and wear a gown.

What to expect:

  • The technologist doing your EKG will ask you to lie down on an examining table. As many as 12 to 15 electrodes will be attached to your arms, chest and even legs using sticky patches and gel. The electrodes help to detect and conduct the electrical currents of your heart.
  • You can breathe normally during the test, but you will be required to remain quite still for the test, which generally takes only a few minutes. There is absolutely no pain when you have an EKG done.


  • Results from an EKG are available soon after the test. In an emergency situation, the doctor will speak to you right away. Otherwise, you should check within your doctor a few days after the test.


透视是一个类型的x-ray examination that helps a radiologist to see images of your body in motion such as how a contrast medium travels from your mouth to stomach.

Holter Monitoring

When a doctor needs to understand how your heart is functioning over a longer period of time, he or she will request a special type of EKG test that can monitor a patient’s heart for 24 hours. Patients are asked to wear a special device called a Holter Monitor while carrying out their ordinary daily activities. Holter Monitoring is used to help determine whether someone has an undetected heart disease, such as an abnormal heart rhythm or inadequate blood flow through the heart.

For more information, please speak with your doctor.

Interventional Radiology

Interventional radiology(IR) is a group of techniques where medical images, such as x-ray fluoroscopy, computed tomography, or ultrasound, are used to precisely guide medical therapies to the internal structures of the body through very small incisions or body orifices. IR is broadly classified into two main types of procedures: diagnostic and therapeutic.

Diagnostic techniques use medical imaging to either precisely guide biopsy of an abnormality, such as a cancerous tumor, or inject a radiopaque agent to visualize a hollow structure, such as a blood vessel or a duct. Examples of diagnostic procedures include angiograms and lung biopsy.

Therapeutic techniques precisely guide therapies, such as stents or clotting agents, to an abnormality. Examples of therapeutic procedures include fistuloplasty, femoral angioplasty, or embolization.

The main benefit of interventional radiology techniques is that they can reach the deep structures of the body through a body orifice or tiny incision using small needles and wires which decreases risks, pain,