3-D mammography detects 34% more breast cancers

In the traditional mammogram examination, all of the breast tissue is captured in one image. On the other hand, breast transplantation is three-dimensional and works according to the same principle as what is known as tomography.

This means that many low dose x-rays are taken from the chest from different angles, which are reconstructed into a computer to show thin layers of the breast. With more and improved image information and less overlapping tissue structures, the chance of detecting tumor tumors increases. Furthermore, the radiation dose may be reduced under certain conditions.

“With breast augmentation, 34% more tumors were detected compared to current mammogram testing, while at the same time we managed to reduce breast compression during the examination, which may encourage more women to participate in the test,” said Sophia Zackrisson, associate professor at Lund University and radiologist at Skåne University Hospital (SUS), Sweden.

But she added: “However, we have to call back some women for more tests than traditional mammography. Confirm that these women did not have cancer, as this method finds more chest structures in general. There is a need to improve the detection of cancer and for many women breast reconstruction is clearly the most appropriate method. The synthesis is something that will be introduced as the prevailing method, the question is simply when and to what extent. ”

Tummosis is already being used at the Skåne University Hospital, among others, to investigate breast cancer. Prior to a possible large-scale introduction to the general screening program, the research team is now conducting a cost-benefit study.

All types of detection involve the risk of overdiagnosis, which in turn can lead to unnecessary therapies. As a result, researchers, in collaboration with their colleagues from Europe, will carry out a meta-analysis by bringing together and examining the overall results so far.

One problem for the introduction of 3D mammography is the lack of radiologists who can diagnose the increased image material produced by the method. However, the method used at the Skåne University Hospital may be more effective than those examined in previous international studies in which 3-D was combined with traditional mammogram testing. This led to more image material and a higher dose of radiation.

“We have shown that we can achieve the same result with a simpler and perhaps even better method,” said Zackrisson.

In the future, part of the diagnosis of breast augmentation images can be automated by computer, but it will take time for that. Currently there is a lack of suitable and tried-and-tested software, but studies are under way.