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...

Read More

Meet the Radiologists

John (Jack) Brandon, MD

Jack Brandon is a board-certified radiologist and he is fellowship/subspecialty trained in neuroradiology.

Read More

Services

View all

Tumor Cryoablation

What is tumor cryoablation? Tumor cryoablation is a procedure that uses extreme cold to freeze and destroy cancer cells. Cryoablation is used to treat tumors of the kidney. How is tumor cyroablation done? A needle-like applicator will be placed in contact 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 applicator(s) to the treatment site. Once the applicator is in the correct location, Dr. Christenson will administer argon gas...

Read More

Breast Imaging

Breast Imaging

Radiologists of Eastern Radiological Associates provide radiological services exclusively to Yellowstone Breast Center. The Yellowstone Breast Center, which is part of Saint Vincent Healthcare, is accredited by the National Accreditation Program for Breast Centers and certified by the FDA. The Yellowstone Breast Center has been accredited by the American College of Radiology as a Breast Imaging Center of Excellence for demonstrating excellence in breast imaging by successfully achieving accreditation in: Digital Mammography Digital Mobile Mammography Breast...

Read More

Neurologic Imaging

Neuroradiology is a subspecialty of radiology, focusing on the diagnosis and characterization of abnormalities of the central and peripheral nervous system, spine, and head and neck. Neurologic imaging methods include computed tomography (CT) and magnetic resonance imaging (MRI). Ultrasound is used in limited circumstances, in particular in the pediatric population. Angiography is traditionally used for diagnosis of vascular abnormalities or diagnosis and characterization of masses or other lesions but is being replaced in many instances by CT...

Read More