Digital breast tomoysnthesis (DBT), or 3-D mammography, has often been referred to as being the key to advancement in breast imaging. With more and more states passing laws requiring that women be notified if they are classified as having dense breast tissue, DBT is proving to be beneficial in accurate detection—a JAMA study showed that using 3-D mammography resulted in a 15% reduction in recall rates and a 41% increase in the detection of potentially lethal cancers.
Dense breast tissue and the accompanying notifications to women who possess it has become a frequent conversation topic over the past couple years. As of now, 20 states have enacted laws that require medical professionals to notify women if their mammograms reveal them to have dense tissue. Organizations such as Are You Dense Advocacy are fighting the good fight trying to get more states on board with these notifications because of the major risk dense breast tissue presents— making it more difficult to detect cancer in a mammogram than normal tissue.
At the International Congress of Radiology (ICR) in September 2014, Dr. Marwa Adel from Misr University for Science and Technology and Cairo Scan in Egypt presented two cases:
- The first case, Dr. Adel and company compared breast cancer visibility in digital mammography with that of DBT. Cancer visibility was ranked higher for DBT than for digital mammography in 52% of cases and was equivalent in 49 cases (33.6%). When observing the group with higher breast tissue density, the cancers were rated more visible in 64.6% of the cases.
- In the second study, DBT also proved better than digital mammography in image quality of masses. DBT was rated as equivalent or superior to digital mammography in 96% of the total findings.
Dr. Adel and the other authors of the studies concluded that DBT is superior to digital mammography in diagnostic performance. Particularly when it comes to dense breast tissue, it is clear that the use of DBT is vital to providing improved diagnosis to patients.
There are important questions regarding financial, technical, product, and workflow issues related to DBT that should be answered before a facility installs a system. As women’s healthcare continues to evolve, more and more facilities are able to implement DBT machines and be in a position to provide the highest quality of care to their patients.
At RSNA 2014, Carestream will showcase enhancements to its DBT module including a DBT image map that indicates the location and orientation of the currently displayed slice in the breast, a slabbing tool that allows adjust of the slab thickness , improved workflow settings and the display of DICOM-compliant 2D synthetic views, which are calculated from the 3D dataset. For more information, you can visit us in South Hall at booth #4735.
UPDATE, NOVEMBER 10, 2014: According to an article published last week by Health Imaging, “the Centers for Medicare & Medicaid Services (CMS) established two new add-on codes that will go into effect Jan. 1, 2015, and extend additional payment when DBT is performed along with 2D digital mammography.” You can click the link to get more details about the designated codes and payment amounts for DBT. CMS said it will also “revisit payment for DBT and 2D mammography for 2016 as part of a review under its misvalued codes initiative.”