Rochester, Minnesota


Koo.ChiWan@mayo.edu Clinical Profile


Chiwan Koo, M.D., is interested in research on the chest, blood vessels and heart. Her current research interest focuses on subsolid nodule (SSN), a specific type of pulmonary nodule of uncertain malignant potential.

In particular, she seeks to evaluate a noninvasive, radiation-sparing method of determining the malignant potential of SSNs. She hypothesizes that different histopathologic properties of SSNs will correspond to different magnetic resonance imaging (MRI) characteristics, allowing discrimination of malignant from benign lesions.

Focus areas

  • SSN-MRI. Utilizing 3T MRI, images of SSNs will be acquired and the results will be correlated with SSN histology, positron emission tomography (PET) and computed tomography (CT) density measurements.

Significance to patient care

Upon successful completion of the study, the optimal SSN MRI technique will be determined. This achievement may greatly revolutionize management of SSN, as serial surveillance will be possible with reduced cumulative radiation exposure and diminished need for invasive procedures.

Professional highlights

  • Research and Education Foundation Seed Grant, American Association for Women Radiologists, 2010-2011
  • Research and Education Foundation Seed Grant, Society of Thoracic Radiology, 2010-2011


See my publications


Primary Appointment

  1. Radiology

Academic Rank

  1. Assistant Professor of Radiology


  1. Fellow - Cardiothoracic Imaging Fellowship Hospital of the University of Pennsylvania, University of Pennsylvania
  2. Resident - Diagnostic Radiology St. Luke's Roosevelt Hospital Center, Columbia University Medical Center
  3. Chief Resident St. Luke's Roosevelt Hospital Center, Columbia University Medical Center
  4. Internship - Internal Medicine Winthrop University Hospital
  5. MD New York University School of Medicine
  6. BA - Biochemistry with Honors, magna cum laude College of Arts and Sciences, New York University

Mayo Clinic Footer