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. ERA provides a full range of professional radiology...

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Meet the Radiologists

Brian Christenson

Brian Christenson, MD

Brian Christenson is a board-certified radiologist. He is fellowship/ subspecialty trained in interventional radiology.

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Services

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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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Musculoskeletal Imaging

knee

Musculoskeletal radiology (MSK) is a subspecialty of radiology. MSK radiology uses state-of-the-art imaging technology to diagnose disorders of bones, joints, and soft tissues using a wide variety of modalities including conventional radiography (x-ray), computed tomography (CT), ultrasonography, and magnetic resonance imaging (MRI). MSK radiologists help diagnose a variety of musculoskeletal disorders including trauma, sports injury, arthritis, bone and soft tissue tumors, and many other etiologies causing acute and chronic pain. Our state-of-the-art...

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Pediatric imaging

Pediatric Imaging

Pediatric radiology is devoted to the care of children, using advanced imaging equipment to assist pediatricians in determining the best way to assess a specific problem while minimizing radiation dose. Pediatric radiologists are specially trained to understand the unique needs of children, parents, and pediatricians in the diagnostic process, with detailed knowledge of illnesses and medical conditions of infants and children. Dr. Delavan is subspecialty trained in pediatric radiology at Children’s Hospital Colorado, giving ERA unique expertise...

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