Johnston-Willis Hospital and its network of facilities offers comprehensive outpatient imaging services for the well-being and convenience of our patients. We can provide same-day service for most physician-ordered imaging procedures. Our expert staff of board-certified radiologists and technologists work closely with physicians to get patients on their way to diagnosis, treatment and good health.

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Our testing and imaging services include:

Bone density scanning, also called dual-energy x-ray absorptiometry (DXA) or bone densitometry, is an enhanced form of x-ray technology that is used to measure bone loss. DXA is today's established standard for measuring bone mineral density (BMD).

DXA is most often used to diagnose osteoporosis, a condition that often affects women after menopause but may also be found in men and rarely in children. Osteoporosis involves a gradual loss of calcium, as well as structural changes, causing the bones to become thinner, more fragile and more likely to break.

Computed tomography (CT) scan, also called computerized axial tomography (CAT) scan, uses X-rays to generate detailed cross-sectional images, called slices, of the body. Used to detect broken bones, cancers, blood clots, signs of heart disease, and internal bleeding, CT scans are fast, painless and usually non-invasive. We offer several types of CT scanning, including positron emission tomography (PET), electron-beam CT (EBCT/Ultrafast CT), and single-proton emission CT (SPECT).

Diagnostic radiology encompasses a variety of diagnostic and image guided therapeutic techniques, including all aspects of radiological diagnosis (nuclear radiology, diagnostic ultrasound, magnetic resonance, computed tomography, interventional procedures, and the use of other forms of radiant energy). This is typically one of the first tools used by primary care providers to diagnose and treat conditions.

An electrocardiogram (ECG or EKG) measures the electrical activity of your heart using small electrical sensors, called electrodes, which are put on your skin. The electrical signals are turned into a graph for your doctor’s review. An EKG can help your doctor diagnose heart attacks, arrhythmias and other heart conditions, detect conditions that alter the body's balance of electrolytes or identify other problems like drug overdoses.

An electroencephalogram (EEG) uses sensors to evaluate electrical brain activity. An EEG is painless and usually takes about an hour. An EEG can help your doctor diagnose seizures and assess brain function affected by certain conditions and diseases, such as trauma, coma, infection, tumors, and dementia.

Interventional radiology uses X-rays, MRI and other imaging to advance a catheter in the body, usually in an artery, to treat at the source of the disease internally. Many conditions that once required surgery can be treated less invasively by interventional radiologists. Interventional radiology treatments offer less risk, less pain and less recovery time compared to open surgery.

Magnetic resonance imaging (MRI) uses magnetic fields, not radiation, to make pictures of the internal organs and structures inside the body. MRIs let your doctor look more closely at parts of the body than they can with other imaging methods. This is useful in diagnosing and treating a broad range of conditions as well as in maximizing surgical outcomes.

  • Open MRI: Open MRI allows MRIs to be completed with your head outside the opening of the MRI machine. This makes it easier to have an MRI if you are claustrophobic or weigh 350-550 pounds.
  • 3T MRI: With 3T MRI’s high-resolution images, scanning time is shorter and the need for retakes is reduced. It is especially valuable in early detection of breast cancer and management of neurologic and neurosurgical disease.
  • Cardiovascular MRI: Cardiovascular MRI is a non-invasive procedure used to diagnose diseases of the heart and blood vessels. It is used for cardiac stress testing when patients cannot perform a treadmill stress test. It has been shown to be the best noninvasive test for heart assessment after a heart attack and is used for diagnosis other diseases as well.

Mammography uses a low-dose x-ray system to produce images for an examination of your breasts. This exam is called a mammogram. It can be used as a screening tool to detect early breast cancer in women with no symptoms and to detect and diagnose breast disease in those that are experiencing symptoms such as lumps, pain or nipple discharge. It may also be used to identify changes in breast tissue before a lump can be felt and find a lump's location before a biopsy or surgery.

Nuclear imaging can allow your doctor to detect problems in the earliest stages or monitor your immediate response to therapies. The procedure uses small amounts of radioactive material to pinpoint molecular activity within the body. It may also be used to diagnose and treat some cancers, heart disease, gastrointestinal conditions, endocrine or bone abnormalities, stress fractures, neurological disorders and other diseases.

Ultrasound tests use high-frequency sound waves to create video images of soft tissue areas of the body, such as the cardiovascular, gastrointestinal, digestive, and reproductive organs. Ultrasound tests are non-invasive, painless, cost-effective and typically take between 15 and 30 minutes.