Advanced Imaging


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Updated: July 8th, 2008 05:26 PM CDT

Siemens Collaborates with Duke University to Advance Breast Imaging

Business Wire
via NewsEdge Corporation

RSNA 2005 Booth #4337 MALVERN, Pa.--(BUSINESS WIRE)--Nov. 21, 2005--Demonstrating its commitment to comprehensive breast care solutions, Siemens Medical Solutions will present its prototype digital breast tomosynthesis (tomo) system* at the 91st Scientific Assembly and Annual Meeting of the Radiological Society of North America (RSNA) from Nov. 27 to Dec. 2 (booth #4337) in Chicago. The system, developed in close collaboration with Duke University Medical Center, is based on Siemens' Mammomat(R) NovationDR full-field digital mammography system. It is being investigated in preliminary clinical trials for the detection of subtle mass lesions often undetectable by conventional mammography.

"Siemens actively invests in research and technologies to advance detection and diagnosis of disease," said Holger Schmidt, president, Special Systems Division, Siemens Medical Solutions. "Through a dedicated team of researchers at both Duke and Siemens, we have developed a breast tomosynthesis system. We hope it will be a major step in diagnosis that will provide a women's health solution and revolutionize the way breast cancer is treated."

The new prototype employs a Mammomat NovationDR system modified with a motorized X-ray tube to acquire image projections of the breast from many different angles, as well as a digital detector for increased speed and quality image acquisition. Preliminary results conducted at Duke with several mastectomy and patient cases suggest that the new tomo system is able to detect subtle mass lesions otherwise difficult to pick up with standard mammography. When fully developed, this new solution is expected to further enhance diagnostic ability by improving sensitivity of breast cancer detection, and more importantly, increase workflow by reducing false positives/misdiagnosis and unnecessary biopsies.

"Breast tomosynthesis may be one of the first techniques that can actually replace conventional 2D mammography," said Joseph Lo, Ph.D., assistant research professor of Radiology, Duke Advanced Imaging Laboratories, Duke University Medical Center. "While mammography is sensitive at finding cancer, it sometimes results in false positives -- leading to workflow issues for the clinician and unnecessary strain on the patient. The goal of our studies is to reduce these false positives by providing 3D information at the same high resolution and reasonable dose as mammography, while also improving patient comfort."

Featuring a large field-of-view enabled by a large area detector, the prototype system is designed to be suitable for nearly all breast sizes. It has the potential to provide high sensitivity and specificity, which could allow radiologists to detect and characterize suspicious lesions more precisely. With low-dose 3D mammography, it may eliminate normal tissue overlap, which might otherwise obscure lesions. Additionally, enhanced visibility to view masses may be made possible with high contrast resolution.

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