A new high-resolution nuclear medicine imaging scanner specifically designed for breast exams has the potential to increase physicians ability to determine if a woman has breast cancer, and may be particularly useful for women with dense breasts. The results of this early study were reported in the July 2002 issue of the Journal of Nuclear Medicine, published by the Society of Nuclear Medicine.
When compared with scintimammographic images taken on a standard gamma camera, the new camera, called a high-resolution breast-specific gamma camera (HRBGC), was able to detect more (78%) malignancies than a standard gamma camera (68%). The sensitivity of breast cancer detected in lesions <1cm increased from 46.7% to 66.7% using the new camera. It also detected 3 lesions that were not visible with mammography; one of which did not appear on the standard camera. All three were in areas of dense breast tissue.
Scintimammography is a technique in which women are injected with the radiotracer 99mTc-sestamibi that is absorbed more by malignant tissue than normal tissue, resulting in an image that can be used to locate cancerous areas. Scintimammography has been shown in studies to detect breast cancer better than traditional mammography. Standard gamma cameras have some significant drawbacks, including registration and resolution issues, and the fact that they cannot acquire multiple views, making it difficult detect lesions <1cm. This preliminary study utilized a prototype breast-specific gamma camera that was designed to address these problems.
Karen Lubieniecki | EurekAlert!
Sugar entering the brain during septic shock causes memory loss
23.04.2019 | Rensselaer Polytechnic Institute
Deep stimulation improves cognitive control by augmenting brain rhythms
04.04.2019 | Picower Institute at MIT
Researchers led by Francesca Ferlaino from the University of Innsbruck and the Austrian Academy of Sciences report in Physical Review X on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these properties are unprecedentedly long-lived. This sets the stage for future investigations into the nature of this exotic phase of matter.
Supersolidity is a paradoxical state where the matter is both crystallized and superfluid. Predicted 50 years ago, such a counter-intuitive phase, featuring...
A stellar flare 10 times more powerful than anything seen on our sun has burst from an ultracool star almost the same size as Jupiter
A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers which are otherwise challenging for conventional computers. This brings such digital quantum simulation within reach on quantum devices available today.
Quantum computers promise to solve certain computational problems exponentially faster than any classical machine. “A particularly promising application is the...
The technology could revolutionize how information travels through data centers and artificial intelligence networks
Engineers at the University of California, Berkeley have built a new photonic switch that can control the direction of light passing through optical fibers...
Physicists observe how electron-hole pairs drift apart at ultrafast speed, but still remain strongly bound.
Modern electronics relies on ultrafast charge motion on ever shorter length scales. Physicists from Regensburg and Gothenburg have now succeeded in resolving a...
17.04.2019 | Event News
15.04.2019 | Event News
09.04.2019 | Event News
23.04.2019 | Information Technology
23.04.2019 | Earth Sciences
23.04.2019 | Life Sciences