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New breast cancer imaging technique could cut down on false positives

Date:
September 27, 2013
Source:
Brigham Young University
Summary:
A new breast cancer screening technique is being developed that has the potential to reduce false positives, and, possibly, minimize the need for invasive biopsies. Scientists have created an MRI device that could improve both the process and accuracy of breast cancer screening by scanning for sodium levels in the breast.

Electrical engineering professor Neal Bangerter and his colleagues are working to develop new MRI methods for breast cancer screening.
Credit: Brigham Young University

A joint BYU-Utah research team is developing a new breast cancer screening technique that has the potential to reduce false positives, and, possibly, minimize the need for invasive biopsies.

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Led by BYU electrical engineer Neal Bangerter and University of Utah collaborators Rock Hadley and Joshua Kaggie, the group has created an MRI device that could improve both the process and accuracy of breast cancer screening by scanning for sodium levels in the breast.

"The images we're obtaining show a substantial improvement over anything that we've seen using this particular MRI technique for breast cancer imaging," said Bangerter, senior author on a study detailing the method in academic journal Magnetic Resonance in Medicine.

Specifically, the device is producing as much as five-times more accurate images than previous efforts with an emerging methodology called sodium MRI.

Currently, there are two clinical imaging methods widely used for screening breast cancer: mammograms and proton MRI scans.

X-ray mammography is the most common screening tool, but the procedure involves x-ray exposure and is generally unpleasant. Mammograms are relatively inexpensive, but they still lead to biopsies when something suspicious is detected.

Because of their increased sensitivity, proton MRI scans are generally used to further examine suspicious areas found by mammograms. However, they can produce false positives leading to unnecessary interventions.

Sodium MRI has the potential to improve assessment of breast lesions because sodium concentrations are thought to increase in malignant tumors. Bangerter and his team believe that the addition of sodium MRI to a breast cancer screening exam could provide important additional diagnostic information that will cut down on false positives.

The team has developed a new device used for sodium imaging that is picking up a level of detail and structure not previously achieved.

"This development by Dr. Bangerter and his group represents a major advance in the field of multinuclear MRI of the breast," said Stanford Professor of Radiology Bruce Daniel. "He and his group have invented a way to dramatically boost the sodium signal from the breast, enabling much better, higher resolution sodium MR images to be obtained. This should open the door to new avenues of research into breast cancer."

So far, the novel technique returns high-quality images in only 20 minutes, improving the odds that sodium MRI breast scans could be implemented clinically.

The MRI team's goal is to produce a device capable of obtaining both excellent sodium and good proton images without requiring the patient being screened to be repositioned for multiple scans.

"This method is giving us new physiological information we can't see from other types of images," Bangerter said. "We believe this can aid in early breast cancer detection and characterization while also improving cancer treatment and monitoring."


Story Source:

The above story is based on materials provided by Brigham Young University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Joshua D. Kaggie, J. Rock Hadley, James Badal, John R. Campbell, Daniel J. Park, Dennis L. Parker, Glen Morrell, Rexford D. Newbould, Ali F. Wood and Neal K. Bangerter. A 3 T sodium and proton composite array breast coil. Magnetic Resonance in Medicine, September 2013 DOI: 10.1002/mrm.24860

Cite This Page:

Brigham Young University. "New breast cancer imaging technique could cut down on false positives." ScienceDaily. ScienceDaily, 27 September 2013. <www.sciencedaily.com/releases/2013/09/130927092728.htm>.
Brigham Young University. (2013, September 27). New breast cancer imaging technique could cut down on false positives. ScienceDaily. Retrieved January 29, 2015 from www.sciencedaily.com/releases/2013/09/130927092728.htm
Brigham Young University. "New breast cancer imaging technique could cut down on false positives." ScienceDaily. www.sciencedaily.com/releases/2013/09/130927092728.htm (accessed January 29, 2015).

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