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I2R-IEEE-PREMIA Co-organized Seminar |
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Sunday, 11 January 2009 |
We are pleased to invite you to the following seminar: Current Concepts and Future Directions in Virtual Colonoscopy
Computer-Aided Detection, by Dr. Ron Summers (M.D., Ph.D.
Senior Investigator and Staff Radiologist
Chief, Clinical Image Processing Service
Chief, Virtual Endoscopy and Computer-Aided Diagnosis Laboratory
Radiology and Imaging Sciences
National Institutes of Health Clinical Center) on 13 Jan 2009
(Tuesday). The seminar is jointly organized by Institute for Infocomm Research, A*STAR (I2R), IEEE Engineering in Medicine and Biology Society, Singapore
Chapter (IEEE EMB)
, and Pattern Recognition and Machine Intelligence Association
(PREMIA).
Title: Current Concepts and Future Directions in Virtual Colonoscopy
Computer-Aided Detection
Speaker: Ron Summers, M.D, Ph.D
Date and Time: 2:30 - 3:30 pm, Jan 13, 2008
Venue: Franklin @ 08S , Fusionopolis level 08, South Tower
Abstract:
Colorectal cancer is the second leading cause of cancer
death in the Western world. Virtual colonoscopy is a CT-based method
that has proven capable of relatively noninvasive colorectal cancer
screening. In virtual colonoscopy, three-dimensional reconstructions of
the colon are prepared from CT scans of a patient's abdomen and pelvis.
My research group has focused for the last several years on
computer-aided detection (CAD) of polyps for virtual colonoscopy. We
have developed shape-based features using differential geometry to
identify abnormal growths in the colon. In association with
collaborators at other institutions, we have developed a database of
over 1200 proven virtual colonoscopy cases with optical colonoscopy
correlation. Using this database, we continue to make advancements in
improving sensitivity and reducing the false positive rate of CAD.
Current work includes image processing to register supine and prone
virtual colonoscopy examinations on the same
patient, CAD of normal colonic features that mimic pathology, and
software systems to train classifiers, validate results, and ensure
software reliability and integrity. Because of the large size of our
case database and the time-consuming processing required to train the
CAD system, we have made extensive use of the NIH supercomputing
cluster. This lecture will provide an overview of the clinical
background, mathematical underpinnings, and preliminary clinical trials
conducted at the National Institutes of Health.
Biography:
Ronald Summers, M.D., Ph.D. is a radiologist and
tenured image processing researcher at the National Institutes of Health
where he has worked for the past 14 years. He received his B.A. degree
in physics in 1981 and his M.D. and Ph.D. degrees in 1988, all from the
University of Pennsylvania. Following a medical internship, he completed
a radiology residency at the University of Michigan in Ann Arbor in
1993. In 1994, he completed an MRI fellowship at Duke University. In
2000, he was awarded the Presidential Early Career Award for Scientists
and Engineers by President William Clinton. His research focuses on
virtual endoscopy and computer aided detection from radiologic images.
He has authored or co-authored over 150 publications and has several
patents.
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