Dr. Guo is a diagnostic radiologist with board certifications in Radiology and Nuclear Medicine. He is subspecialty fellowship trained in chest (thoracic) imaging and nuclear medicine, including PET-CT. As a dedicated chest radiologist, Dr. Guo's emphasis is on diseases of the lungs, including: interstitial lung diseases, lung cancer, and diseases of the airways. Dr. Guo also specializes in cancer imaging as part of his work in nuclear medicine and PET, and helps to care for patients in the Thoracic Cancer Program, Lung Cancer Screening, lung graft-versus-host disease Clinic, Infectious Diseases, Interstitial Lung Diseases Clinic, Sarcoidosis, and in the Nuclear Medicine Clinic.