Dr. Henschke explains how the the chest x-ray and low dose CT (computed tomography) scan differ in the ways they screen for lung cancer.
Okay, a chest x-ray is one view of your entire chest. A CT scan today gives you 800 views. So clearly you have 800 images compared to one. Clearly you can see much more in a CT scan, but also a chest x-ray, you have all of the soft tissues and the bones and the lungs are all superimposed and so you can’t find very small abnormalities. You can find a nodule that maybe is an inch of a size of a quarter or bigger, but with CT scans, you can find things that are small as a grain of rice. So, and that capability of CT scanners is continuing to improve dramatically every couple of years.
About Dr. Henschke, M.D., Ph.D.:
Dr. Claudia Ingrid Henschke, M.D., Ph.D., M.S., is an Attending Radiologist at New York-Presbyterian Hospital and Professor of Radiology in Cardiothoracic Surgery at Weill Cornell Medical School. She is a clinical expert in percutaneous fine needle lung biopsies and thoracic radiology and board certified in Diagnostic Radiology. Dr. Henschke received her master’s degree from Southern Methodist University, her Ph.D. from the University of Georgia, and medical degree from Howard University College of Medicine.