07:32am Monday 18 December 2017

Virtual Colonoscopies Help Identify Additional Cancers Outside of the Colon, Study Suggests

CTC is an emerging noninvasive rapid imaging technique developed for colorectal cancer (CRC) screening. It is less invasive than optical colonoscopy and may improve patient adherence and CRC screening.

In addition to intracolonic (within the colon) findings, CTC examines the entire abdomen and pelvis similarly to a CT scan. “The ability of CTC to identify significant extracolonic lesions at an early treatable stage may increase the yield of CRC screening, thus enhancing CTC as a major screening technique,” said Ganesh R. Veerappan, MD, lead author of the study.

The study, performed at Walter Reed Army Medical Center in Washington, DC, included 2,277 patients who underwent CTC. Of those patients, extracolonic findings were identified in 1,037 patients, with 787 insignificant and 240 significant findings.

“When considering extracolonic findings, CTC increased the odds of identifying high-risk lesions by 78 percent. CTC should be considered as an alternative to optimal colonoscopy for colorectal cancer screening or as a onetime procedure to identify significant treatable intracolonic and extracolonic lesions,” said Veerappan.

This study appears in the September issue of the American Journal of Roentgenology. For a copy of the full study or to request an interview with a study author, please contact Heather Curry via email at hcurry@acr-arrs.org or at 703-390-9822.

About ARRS

The American Roentgen Ray Society (ARRS) was founded in 1900 and is the oldest radiology society in the United States. Its monthly journal, the American Journal of Roentgenology, began publication in 1906. Radiologists from all over the world attend the ARRS annual meeting to participate in instructional courses, scientific paper presentations and scientific and commercial exhibits related to the field of radiology. The Society is named after the first Nobel Laureate in Physics, Wilhelm Röentgen, who discovered the x-ray in 1895.

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