Medical Imaging Center

Diagnostic imaging at The Angeles Clinic and Research Institute incorporates some of the most sophisticated medical technology in the world. We routinely perform studies using the latest technologies in positron emission tomography (PET) and computed tomography (CT) fusion scanners. All diagnostic imaging tests are interpreted by our board-certified, fellowship-trained radiologists.

Meet our Radiologists • Medical Imaging Services

Meet our Radiologists

Pareen Mehta, MD

Pareen Mehta, MD is a fellowship-trained radiologist in the Department of Imaging at The Angeles Clinic and Research Institute. Dr. Mehta earned his undergraduate degree and Doctor of Medicine at the University of Missouri - Kansas City School of Medicine. He completed his residency in diagnostic radiology and nuclear medicine at the University of Southern California. He subsequently completed his fellowship training in neuroradiology, also at the University of Southern California. During his training, he received the Editorial Fellowship through the American College of Nuclear Medicine. Dr. Mehta has a keen interest in emerging radiologically-targeted therapies and is experienced and licensed in administration of therapeutic radionuclides. He serves on the editorial board of peer-reviewed journals, including Clinical Nuclear Medicine. Dr. Mehta has presented his research at multiple national meetings and his work is published in peer-reviewed journals.

Navid Moradshahi, MD

Dr. Moradshahi recently completed a vascular and interventional radiology fellowship at University of Southern California bringing additional expertise to support the expansion of the department of Diagnostic Imaging and Interventional Radiology.  He completed medical school and residency at Keck School of Medicine/USC and served as Chief Resident for the Residency Program there from 2016-2017.  Dr Moradshahi has presented and published on a broad array of topics and brings tremendous additional skills to our institution furthering our mission of excellence in comprehensive cancer care and research.

Walter Osias, MD

Walter Osias, MD is a board certified radiologist specialized in MRI and musculoskeletal imaging. Dr. Osias obtained his medical degree at the Chicago Medical School and completed both his residency and fellowship training at the University of Southern California. He has a special interest in advanced oncological imaging such as breast MRI and prostate MRI, as well as image guided musculoskeletal interventions. He is a member of the American College of Radiology, American Roentgen Ray Society, and Society of Skeletal Radiology.

Medical Imaging Services

The Angeles Clinic and Research Institute’s Medical Imaging Services include:

Positron Emission Tomography/Computed Tomography (PET/CT)

Positron Emission Tomography/Computed Tomography (PET/CT) is a powerful medical imaging tool that combines the best of PET and CT to create exceptionally detailed images.  PET/CT is especially useful for diagnosing and treatment planning for brain disorders conditions and cancer.  PET/CT is a short and painless procedure.

PET/CT is used in the treatment of cancer for:

• Locating of a mass (occult tumors)
• Accurate staging and restaging of cancer
• Predicting reliably if masses are cancerous or not for masses that are difficult to evaluate with conventional imaging after therapy

In the future, researchers hope to expand the use of PET towards usage that is both functional and anatomical, including:

• Predicting early stage response to cancer treatment
• Comparing the usefulness of drugs
• Determining the optimal dosage and treatment schedule of cancer medications

Visit The Angeles Clinic and Research Institute’s Patient Education Library to learn more about PET/CT.

Radiofrequency Ablation (RFA)

Percutaneous ablation techniques are important treatment alternatives for managing pain due to bony metastatic disease. Radiofrequency ablation techniques use heat to destroy cancer cells. The RFA procedure is guided by medical imaging. Radiofrequency ablation techniques are successfully utilized as a potential therapeutic tool for removing or reducing cancer in a variety of organs in the body. In most cases, RFA is an outpatient procedure and can be performed at The Angeles Clinic and Research Institute in West Los Angeles, California.

Image guided radiofrequency ablation techniques have achieved some success in the cancer field, including:

• The potential cure of liver metastases in several types of cancer, most notably metastatic colorectal cancer
• Lung cancer, renal cancer, and adrenal cancer therapy
• A viable alternative to more invasive surgical procedures
• Most frequently used when surgical procedures are contraindicated
• Treatment of painful bone metastases is an exciting new use
• Significant pain reduction is possible in patients who have failed to achieve benefit from conventional therapies that include chemotherapy and external beam radiation. Importantly, the pain reduction that is achieved can be lasting

Call (310) 582-7900 or use our secure online appointment request form to schedule an appointment at The Angeles Clinic and Research Institute's Imaging Center in West Los Angeles, California.