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

KATHY RYAN

Kathleen Ryan, MD

Dr. Ryan is a board-certified radiologist, specializing in Breast Imaging.

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Services

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Varicocele Embolization

men contemplating

What is a varicocele? A varicocele is a varicose vein of the testicle and scrotum that may cause pain and shrinking of the testicles. In healthy veins of the scrotum, a one-way valve allows blood to flow from the testicles and scrotum back to the heart. In a varicocele, the one-way valve has failed resulting in pooled blood and enlarged veins around the testicle. What is Varicocele Embolization? The enlarged veins found in a varicocele can be treated using embolization. In embolization a small tube called a catheter is inserted in the groin area...

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Coronary Computed Tomography Angiography (CCTA)

Heart and Ribs

What is CCTA? Coronary computed tomography angiography (CCTA) is a heart imaging test that helps determine if plaque buildup has narrowed a patient’s coronary arteries, the blood vessels that supply the heart. Plaque is made of various substances circulating in the blood, such as fat, cholesterol and calcium that deposit along the inner lining of the arteries. Plaque, which builds up over time, can reduce or in some cases completely block blood flow. Patients undergoing a CCTA scan receive an iodine-containing contrast material (dye) as an intravenous...

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Tumor Microwave Ablation

liver diagram

What is tumor microwave ablation? Tumor microwave ablation is a procedure that uses microwave energy to destroy cancer cells. Microwave ablation is used to treat tumors of the liver and some other tumors including bone tumors. How is tumor microwave ablation done? A needle-like microwave antenna will be placed inside with the tumor, more than one applicator may be used depending on the tumor size and location. Dr. Christenson will use ultrasound and other x-ray imaging to guide the antenna(s) to the treatment site. Once the antenna is in the correct...

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