To: Mr. K who wrote (1846 ) 1/15/1999 11:56:00 PM From: chirodoc Respond to of 6039
here is the whole article--most important part is the last sentence <<<<But the project is still at an early stage and it will be years before it will replace mammography, Fenster said ......2 years from now coii should have been approved for 1 1/2 years. quite a head start!!!! Thursday January 14 2:59 AM ET New Cancer Scanner May Avoid Need For Biopsies LONDON (Reuters) - A revolutionary imaging device developed by a U.S. scientist could offer a less traumatic means of cancer screening, avoiding the need for painful biopsies. The three-dimensional imaging technique -- called Hall Effect Imaging (HEI) -- uses electronic emissions to spot differences between healthy and diseased tissue, New Scientist magazine said Wednesday. ''What I'm hoping to have is something as sensitive and specific as MRI (magnetic resonance imaging) but with the speed of ultrasound,'' the inventor, Han Wen, based at the National Institutes of Health in Maryland, told the magazine. Breast cancer tumors give off a different electrical signal to healthy tissue. The new imaging technique uses ultrasonic emissions to highlight those differences. ''Some published results suggest that breast tumors trigger large changes in tissue electrical parameters,'' Wen said. The technique should work with other cancers since this change occurs in all other tumors, he added. Aaron Fenster, director of imaging at the Robarts Research Institute at the University of Western Ontario in Canada, told New Scientist that HEI had an advantage over existing techniques because it could rule out false positive tests. Up to now, the only way to make totally sure was a biopsy. But the project is still at an early stage and it will be years before it will replace mammography, Fenster said