St. James Mercy Hospital, Hornell NY
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  Radiology / Imaging
St. James Mercy Hospital

St. James Mercy Hospital provides general radiology services 24 hours/day for inpatient and Emergency Department needs. Outpatient services are also available. Download a complete list of OP services and hours of operation here.
  • Radiology (X-ray)
  • Mammography
  • Magnetic Resonance Imaging (MRI)
  • DEXA
  • CT (CAT Scan)
  • Nuclear Medicine
  • Ultrasound
  • Echocardiography (Heart Ultrasound)
  Diagnostic Medical Imaging

Radiology (X-ray)
X-ray images are typically captured to help diagnose disease and/or issues with the musculoskeletal system. They are often used to help guide the Radiologist during procedures such as biopsies, arthrograms, and angiograms. An image is made by radiation in the form of X-rays passing through the body. The image is recorded digitally by St. James Mercy Hospital staff and stored in PACS (Picture Archiving and Communication System). University of Rochester Medicine Radiologists then interpret the images and generate a report that is provided to your physician/provider. X-ray services are available 24 hours/day.

Mammography uses a dedicated X-ray machine to capture images of breast tissue. Regular mammograms are important to the early detection of breast cancer and other breast diseases. Biopsies, needle localizations, and cyst aspirations are done as requested by your physician/provider. Mammography is often used in collaboration with ultrasound.

  • Monday: 8am – 3:30pm
  • Tuesday: 7am – 3:30pm
  • Wednesday: 7am – 3:30pm
  • Thursday: 8am – 3:30pm
  • Friday: 8am – 3:30pm


DEXA is an enhanced form of X-ray used to measure bone loss (osteoporosis). Typically, images of the lower spine and hips are captured with a dedicated machine, and a specialized computer system generates a report on total bone loss.

CT (CAT Scan)
CT scans are X-ray beams that rotate through narrow sections of the body. Many scans are taken in a short period of time and produce multiple images. A computer reconstructs the scans to produce two-dimensional images. Typical CT scans are captured of the head, chest, abdomen, and pelvis. The test can involve drinking barium and/or getting an IV contrast, which helps capture a better image. CT services are available on-site 24 hours/day.

Magnetic Resonance Imaging (MRI)
MRI tests use a strong magnetic field, radio waves, and computers to create images. MRI does not use radiation. The MRI machine is cylindrical and creates a magnetic field around the patient. MRI is utilized in situations where organs or soft tissues are being studied. When examining the blood vessels, the MRI performs a specialized type of exam called an MRA (Magnetic Resonance Angiography). Our upgraded MRI service is provided via a mobile unit located adjacent to our Emergency Department entrance. The MRI unit is a GE Signa HDxt 1.5T and is available from 7 a.m. – 7 p.m. every Thursday and Friday. Reads will be done by the UR Medicine Imaging team of specialists and sub-specialists.

Nuclear Medicine
Nuclear medicine tests use small amounts of radioactive material to visualize the structure and function of organs, tissue, bones, and/or systems of the body. Typical nuclear medicine tests capture images from the lungs, gall bladder, thyroid, and heart.

Ultrasound / Echocardiography
Ultrasound uses high-frequency sound waves to produce images. Doppler ultrasound may be used during the test. Doppler ultrasound is a technique that evaluates blood flow through a blood vessel. Typical ultrasound exams capture images from the abdomen (including during pregnancy), gall bladder, breast, kidneys, and arteries and veins. The heart can also be examined using ultrasound technology. Often, a stress test is conducted in connection with ultrasound.


St. James Hospital
411 Canisteo Street
Hornell, NY 14843
(607) 324-8000

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