About ERA

Eastern Radiological Associates (ERA) is a professional partnership of board certified radiologists (doctors trained in medical imaging and image interpretation) who have been providing radiology professional services since 1970. Our mission is simple. Eastern Radiological Associates serves the patient and physician community of the region (Montana, Wyoming, and surrounding) by providing the highest quality diagnostic imaging and interventional services in a caring and compassionate atmosphere. Did you know? We are involved in the Yellowstone community… learn...

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Meet the Radiologists

John Bisges

John D. Bisges, MD

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Services

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Uterine Fibroid Embolization

uterine

What is uterine fibroid embolization? Uterine fibroid embolization is a way to treat fibroids of the uterus without surgery. Fibroids are masses of fibrous muscle tissue in the uterine wall. These fibroids are often painful and cause heavy menstrual bleeding. How is uterine fibroid embolization done? In uterine fibroid embolization a small tube called a catheter is inserted in the groin area and guided to the blood vessels that deliver blood to the uterus. Once the catheter is in place, Dr. Christenson will infuse small particles into the vessel,...

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MRI Services

MRI

Magnetic resonance imaging (MRI) is a technology that uses radio waves and a powerful magnet linked to a computer to create detailed pictures of internal organs, blood vessels, muscles, joints, tumors, areas of infection, and more. These very high quality pictures can show the difference between normal and diseased soft tissues of the body, making it especially useful for a wide range of different types of imaging, including neurological and musculoskeletal. If necessary, a contrast agent may be used to help your doctor to see the MRI image more...

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Transarterial Chemo-embolization (TACE)

TACE

What is transarterial chemoembolization (TACE)? Chemoembolization is a procedure that allows a dose of chemotherapy drugs to be administered directly to your tumor. This procedure allows for the chemo drugs to be given to the tumor and lessens the side effects associated with chemotherapy. TACE is most often used to treat liver tumors. How is TACE done? An anesthetic (numbing medicine) will be applied to your skin. Dr. Christenson will make a small incision in your groin then thread a catheter (small plastic tube) from your groin into the artery...

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