Interventional radiology uses minimally invasive, image-guided procedures that have less risk, less pain, and shorter recovery times than traditional surgery.
At St. Luke's, our providers are experts in performing biopsies, ablations, Y90 radioembolizations, chemoembolizations, and more. Many conditions can be treated with interventional radiology, including vascular disease, benign prostatic hyperplasia and uterine fibroids.
Pre- and post-IR procedure visits, and consultations on Y90 embolization, chemo embolization, ablation, and other radiology treatments and therapies.
Brian Granvall, PA-C has spent years in service, first as a Navy hospital corpsman and paramedic and later as a firefighter and paramedic. After earning his degree and certification as a physician assistant from the University of Washington School of Medicine, he obtained a master’s degree in health administration.
Brian holds positions as adjunct faculty at the Medical College of Georgia Center for Operational Medicine, Pacific University’s School of Physician Assistant Studies, and the University of Washington School of Medicine MEDEX Physician Assistant program.
In his free time, Brian enjoys playing ice hockey, hunting and fishing, brewing beer, and spending time with his family.
Tyler Harris, MD, RPVI enjoys practicing all aspects of interventional radiology, including minimally invasive cancer treatments such as thermal ablation, radioembolization (Y90), and transarterial chemoembolization. He also enjoys treating peripheral and pulmonary vascular malformations, and hepatobiliary and renal disease.
Dr. Harris served briefly at Asan Medical Center in South Korea, gaining experience in liver-directed therapies. He has a passion for treating deep veins, and has worked to coordinate care of St. Luke's patients with acute venous thromboembolic events, including pulmonary ebolus and deep vein thrombosis.
Dr. Harris enjoys hiking, traveling, biking, and spending time with his family.
Bill Jones, PA-C earned his bachelor's degree in advanced radiologic sciences from Weber State University in their radiology practitioner assistant program. He earned his master's degree with honors in the physician assistant program at Nova Southeastern University. He is certified as a registered radiologist assistant through the American Registry of Radiologic Technologists.
In his free time, Bill likes to spend time with his family and enjoying the outdoors.
Cory Martin, PA-C received his bachelor's degree at Indiana University, and completed pre-med/pre-PA coursework at IUPUI, the University of New England, and Ivy Tech State College. He earned his master's degree in physician assistant studies at the University of St. Francis.
Cory has a broad range of knowledge and procedural skills in a wide variety of medical settings, including general and orthopedic surgery, emergency/urgent care medicine, and internal medicine. He is dedicated to integrity and ongoing education.
Brent Nelson, MD performs a variety of interventional radiology procedures, including biopsies, vascular access, drainages, dialysis care, and treating vascular disease. He also has special interests and experience in treating cirrhosis and portal hypertension, pelvic venous congestion syndrome, varicocele repair, uterine fibroid disease, and pulmonary vascular malformations.
In his free time, Dr. Nelson enjoys astronomy and outdoor activities.
Andrew Peterson, MD has a clinical interest in interventional oncology and the treatment of both malignant and malign masses through minimally invasive treatment. He practices all aspects of interventional radiology, including image-guided biopsy, vascular access, dialysis access, and hepatobiliary interventions.
In his free time, he enjoys the outdoors and spending time with his family.
Kevin Shearing, PA-C has experience providing care to patients of all ages, with significant experience in adult critical care, pediatric, and emergency room settings.
Kevin earned a bachelor's degree from Boise State University and a master's degree in clinical health services from the University of Washington. In his free time he enjoys spending time with his family, fishing, camping, and hiking.
David Sonntag, MD has clinical interest in radial artery access for the treatment of malignant and benign masses including chemoembolization, Y90, prostate artery embolization for benign prostatic hyperplasia (BPH) and uterine artery embolization for fibroids. He also treats patients with cirrhosis and portal hypertension, and performs TIPS and BRTO/PARTO procedures.
Dr. Sonntag completed his fellowship in interventional radiology at the University of Wisconsin where he gained extensive experience in liver-directed tumor therapy. At St. Luke’s, he started a microwave ablation program for the treatment of liver, lung, and kidney tumors. He is the primary investigator of the St. Luke’s TheraSphere® Y90 program for the treatment of patients with unresectable hepatocellular carcinoma.
In his free time, he enjoys spending time outdoors with his wife and five children.