When Ard den Heeten, professor of Radiology teamed up with his AMC colleague Kees Grimbergen, professor of Medical Technology, a new
approach to mammography was born. It has been developed upon Grimbergen’s observation of a serious flaw in the current mammogram procedure: the establishment of a standard force of the so-called “paddle” compressing the breasts. “Applying the same force throughout means that the experience greatly varies among differently proportioned women”, says Grimbergen. “The smaller their breasts, the larger the exerted pressure. Not force, but pressure should be the relevant parameter here.” Den Heeten explains that the varying pressure among patients also implies that mammograms currently are not obtained under comparable, standard conditions. “This impedes comparative scientific research.”
The new Sensitive Sigma Paddle, developed by the two professors and co-workers, changes all that. It features capacitive sensors measuring the breast’s contact surface, so that a 75 mmHg compression pressure can be maintained for breasts of all sizes. Its “retrofit” design fits with all major mammography apparatus and to ensure brand independent, maximum availability, AMC spin-off company Sigmascreening was founded. Clinical studies in ten hospitals are now underway, the first device has been sold, and – if all goes well – within a few years the new minimal force
mammography will be widely available.
About three years ago orthopaedic surgeon Olivier Temmerman approached the Physics and Medical Technology (FMT) department of VUmc. He had an idea to improve the surgical chisel for removing old cementing layers during hip prosthesis revisions. It was ‘a real pearl’ according to Micha Paalman, head of the development group at FMT. “Olivier had worked […]
Apply existing eye-tracking technology for the development of a state-of-the art digital instrument for orthoptic strabismus measurements. This clever idea by physicist Bob van Dijk is now nearly a reality with Laméris Ootech, a Dutch supplier of orthoptic practice equipment. In his office at VUmc Van Dijk proudly demonstrates his almost perfectly functioning prototype. “A […]
These are exciting times for Dave Koolbergen, congenital cardiac surgeon at AMC. With his company Haermonics he hopes to bring a new technology to market for postoperative pericardial flushing. It was developed upon his observation that after heart surgery often the removal of accumulated blood and clots can be achieved by flushing the pericardial space […]