Mammography and x-ray firm Instrumentarium Imaging has received U.S. Food and Drug Administration 510(k) clearance to market its Delta 32 and Delta 32 TACT diagnostic digital breast imaging systems. The products are intended for use in diagnostic digital spot and 3-D imaging, and can also be used for standalone viewing.
Digital 3-D mammography imaging is based on the company’s TACT (tuned-aperture computed tomography) algorithm. According to the Helsinki, Finland-based firm, the Delta systems can improve the detection of changes within breast tissue that might otherwise be missed, improve verification of targets for biopsies, and help reduce the number of biopsies needed.
The TACT reconstruction technique acquires a number of 2-D digital images from different angles. To obtain the images, the breast is compressed with a normal spot imaging compression paddle and then exposed from different directions using stereotactic movement of the mammography system’s tube head. The reconstruction technique then uses a reference point in each image that defines the image geometry.
The company believes that this method is an efficient way to study difficult and ambiguous cases, and can help reduce the number of missed breast cancers
By AuntMinnie.com staff writersOctober 3, 2002
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