Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

MR spectroscopy identifies breast cancer, reduces biopsies

26.09.2007
Proton magnetic resonance spectroscopy (¹H MRS) used in conjunction with magnetic resonance imaging (MRI) can aid radiologists in diagnosing breast cancer while reducing the number of false-positive results and invasive biopsies, according to a study focusing on non-mass enhancing breast lesions.

The study, conducted at Memorial Sloan-Kettering Cancer Center in New York City, appears in the October issue of the journal Radiology.

“All of the cancers present in this study were identified with MR spectroscopy,” said the study’s lead author, Lia Bartella, M.D., director of breast imaging at Eastside Diagnostic Imaging in New York City.

The American Cancer Society estimates that 212,920 women will be diagnosed with breast cancer in the United States this year. MRI is playing an increasingly important role in the screening of women at high risk for breast cancer. However, while MRI depicts more abnormal findings than other breast screening procedures, it is not 100 percent accurate in distinguishing benign from malignant lesions, resulting in a large number of breast biopsy procedures recommended on the basis of imaging findings. Currently, approximately 80 percent of breast lesions biopsied are found to be benign.

Non-mass enhancing lesions are characterized by enhancement of an area that is not a mass or lump and may extend over large or small regions. Non-mass lesions occur with benign hormonal changes, but can also signify malignancy. Biopsy is often required to distinguish benign non-mass lesions from cancer.

With MR spectroscopy, which adds only 10 minutes to a standard MRI exam, the radiologist is able to see the chemical make-up of a tumor. In most cases, the results indicate whether or not the lesion is cancerous without the need for biopsy.

“Non-mass enhancing lesions frequently pose a dilemma to the radiologist when evaluating the breast for the presence of cancer, especially in premenopausal women,” Dr. Bartella said. “Potentially, the use of proton MR spectroscopy may help decrease the number of benign biopsies for non-mass enhancing lesions.”

For the study, Dr. Bartella and colleagues performed ¹H MRS on 32 non-mass enhancing breast lesions in 32 women, age 20 to 63. Twenty-five of the patients had lesions that had been labeled suspicious at MRI.

¹H MRS can provide radiologists with chemical information about a lesion by measuring the levels of choline compounds, which are markers of an active tumor. In the study, positive choline findings were present in 15 of 32 lesions, including all 12 cancers, giving ¹H MRS a specificity of 85 percent and a sensitivity of 100 percent. If only the lesions with positive choline findings had been biopsied, 17 (68 percent) of 25 lesions may have been spared invasive biopsies and none of the cancers would have been missed.

“By performing MR spectroscopy of the suspicious lesion after an MRI scan, we can noninvasively see which tumors show elevated choline levels and are likely malignant,” Dr. Bartella said. “This chemical information added to the information provided by MRI can eliminate the need for biopsy to find out what the lesion is made of.”

Dr. Bartella hopes that in the future, MR spectroscopy will be incorporated into routine diagnostic breast MRI procedures, significantly decreasing the need for needle biopsies.

Linda Brooks | EurekAlert!
Further information:
http://www.rsna.org

More articles from Health and Medicine:

nachricht Team discovers how bacteria exploit a chink in the body's armor
20.01.2017 | University of Illinois at Urbana-Champaign

nachricht Rabies viruses reveal wiring in transparent brains
19.01.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>