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

DILLARD JOE

Joseph Dillard, MD

Joseph Dillard is a board-certified radiologist and he is fellowship/sub-specialty trained in neuroradiology and interventional and vascular radiology.

Read More

Services

View all

Tumor Cryoablation

What is tumor cyroablation? 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

Positron Emission Tomography (PET)

PET scan

Positron Emission Tomography (PET) technology, often used in combination with CT imaging, uses a scanner and a small amount of radioactive glucose (sugar) which is injected into a patient’s vein to make detailed, computerized pictures of areas inside the body where the glucose is used. A PET-CT scan consists of 2 parts: first, a CT scan to pinpoint the location for the PET, and then the PET scan itself. During a PET scan, a ring of detectors picks up radiation signals from the patient’s body coming from previously injected radiopharmaceuticals....

Read More

DEXASCAN

DEXA scan

Dexascan  Bone density scanning, also called dual-energy x-ray absorptiometry (DXA) or bone densitometry, is an enhanced form of x-ray technology that is used to measure bone loss. DXA is today’s established standard for measuring bone mineral density (BMD). Learn more at http://www.radiologyinfo.org/en/info.cfm?pg=dexa