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Radiology​


The Radiology Quality Improvement and Research Network (RQIRN) is a group of radiology physician investigators who evaluate imaging-related clinical and translational questions in the context of Kaiser Permanente. Set in one of the world's largest integrated healthcare ecosystems, we use rigorous methods to develop data that improves imaging appropriateness and fosters radiology innovation. RQIRN focuses on priority knowledge gaps in both diagnostic imaging (X-Ray, Ultrasound, CT, MRI, Nuclear Imaging, Mammography) and interventional radiology that impact patient care and providers. We also provide imaging expertise for multidisciplinary collaborations, disseminate results, and develop new KP radiology investigators.


Physicians Involved in Research

Eman Alqahtani, MD
Vacaville Medical Center
Vignesh Arasu, MD
Vallejo Medical Center
Eric Bain, MD
Walnut Creek Medical Center
Samuel Baronofsky, MD
Oakland Medical Center
Abigail Berniker, MD
Vallejo Medical Center
Krammie Chan, MD
Oakland Medical Center
James Chen, MD
Oakland Medical Center
Eric Chen, MD
Vacaville Medical Center
Lindsay Cheng, MD
Walnut Creek Medical Center
Victoria Clague, MD
San Rafael Medical Center
Jeffrey Cochiolo, MD
Fresno Medical Center
Jay Desai, MD
San Jose Medical Center
Michael Fox, MD
Vacaville Medical Center
Harpreet Gill, MD
Fresno Medical Center
Benjamin Godwin, MD
Oakland Medical Center
Sheryl Hancock, MD
South Sacramento Medical Center
Anil Hari, MD
San Francisco Medical Center
Kenneth Hoffman, MD
San Jose Medical Center
Gabriel Howles-Banerji, MD
Oakland Medical Center
C. Darryl Jones, MD
Sacramento Medical Center
Rita Joshi, MD
Santa Clara Homestead
Nayela Keen, MD
Walnut Creek Medical Center
Virginia Kim, MD
San Leandro Medical Center
Arden Kwan, MD
Walnut Creek Medical Center
Chia-Li Lai, MD
South San Francisco Medical Center
Marc Lee, MD
San Francisco Medical Center
Hongtai Li, MD
San Francisco Medical Center
Daniel Lim, MD
Fremont Medical Center
Grace Lin, MD
San Leandro Medical Center
Yueyi Liu, MD
San Jose Medical Center
Nadia Malik, MD
Vallejo Medical Center
Mark Mamlouk, MD
Santa Clara Homestead
Kavita Mamtora, MD
Santa Rosa Medical Center
Kareem Mawad, MD
South San Francisco Medical Center
Sundeep Nayak, MD
San Leandro Medical Center
Michael Nguyen, MD
Vallejo Medical Center
Anoop Nundkumar, MD
Sacramento Medical Center
Robert Ochi, MD
Sacramento Medical Center
Eleanor Ormsby, MD
Sacramento Medical Center
Sapna Palrecha, MD
Fremont Medical Center
Archana Rao, MD
Santa Rosa Medical Center
Jaskiran Sharkey, MD
Fremont Medical Center
Caroline Sherbourne, MD
Walnut Creek Medical Center
Vishal Sidhar, MD
South San Francisco Medical Center
Tammy Sung, MD
Walnut Creek Medical Center
John Wu, MD
Santa Clara Homestead

​Ongoing and Completed Radiology Projects, All Funding Mechanisms

Implementation of Artificial Intelligence Algorithm in Breast Imaging for Screening Backlog Management
Vignesh Arasu, Laurel Habel | DSGP | Ongoing

Improved selection of BRCA-negative high-risk women for breast MRI screening through validation of IBIS risk model variants
Vignesh Arasu, Laurel Habel | PRP | Ongoing

Assessing eligibility, participation, and initial outcomes in lung cancer screening
Sundeep Nayak, Lori Sakoda | TAP | Completed

Evaluating effectiveness of mammogram and ultrasound vs. mammogram alone for detecting breast cancer, among women with breast lumps in mammographically fatty breast density
Nwamuo, Dawn MD | CH | Completed

Impact of Changes to Mammographic Screening Guidelines on KPNC Breast Cancer Outcomes
Vignesh Arasu | CH | Completed