Lung Cancer
Low-Dose Spiral CT
Frederic Grannis, MD, head, Section of Thoracic Surgery, and
Arnold Rotter, MD, CT section chief, Diagnostic Radiology, are
developing the City of Hope Early Lung Cancer Detection Project. The
project uses low-dose spiral computed tomography (CT)—an x-ray exam
that is more sensitive than a chest x-ray—to increase the likelihood
of early detection. Today, only about 20 percent of lung cancers are
found at an early stage. In contrast, a recent trial of low-dose
spiral CT of the lung detected more than 80 percent of cancers at an
early stage. The technique should improve the survival of lung
cancer patients, just as better screening processes have improved
survival rates for breast cancer, colon cancer, and prostate
cancer.
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