More breast cancer patients with large palpable tumors are now undergoing chemotherapy before surgery in an effort to reduce the size of their tumor, and MRI is the best way to predict if the chemotherapy is working, preliminary results of a study show. If the chemotherapy is successful, then the woman may be able to undergo breast-conservation surgery rather than a mastectomy.
Currently, it is standard practice for the physician to do a breast examination to non-invasively assess whether the chemotherapy was effective, said Eren Yeh, MD, an instructor of radiology at Massachusetts General Hospital in Boston, and the lead author of the study. “Before we began the study, we weren’t sure if breast tumors would enhance with the MR contrast agent gadolinium and therefore be visible after chemotherapy. Our study found that MRI is not perfect, but it’s better than what’s been used as the gold standard in the past,” she said.
For the study, 31 patients prospectively underwent clinical examination, mammography, sonography and an MRI examination before, then following, chemotherapy. The results of these tests were then compared to the pathology results following surgery. MRI was right (when compared to pathology results) 71% of the time. It overestimated the amount of residual tumor in 6% and underestimated the amount of residual tumor in 23% of patients.
Jason Ocker | EurekAlert!
Researchers release the brakes on the immune system
18.10.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn
Norovirus evades immune system by hiding out in rare gut cells
12.10.2017 | University of Pennsylvania School of Medicine
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
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10.10.2017 | Event News
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