Internal Medicine
333 Cedar Street
Room LMP-1072
P.O. Box 208056
New Haven, CT 06520-8056
Professor of Medicine
Director of Residency Program
Section of Digestive Diseases
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I have focused on two areas related to clinical aspects of colorectal cancer. The first are epidemiological studies that test the role of screening programs for the prevention of colon cancer or evaluate the role of surveillance after surgery. A prospective study of colonoscopy as a primary screening modality and a retrolective cohort study of the use of colonoscopy in patients operated on for colon or rectal cancer are underway.
The second area of study uses the technique of laser-induced fluorescence spectroscopy during colonoscopy to enable the discrimination of normal mucosa from premalignant lesions in the colon. This discrimination is achieved in real time by an on-line computer analysis of replicate laser-induced fluorescence spectra derived from the target tissue. Tissue type is determined based on algorithms derived from fluorescence spectra previously obtained from normal and pathological tissue.
General gastroenterology with emphasis on gastrointestinal malignancies, ulcer disease, and malabsorptive states.