Featured Research

from universities, journals, and other organizations

Alternative, Supplemental Breast Imaging Methods Tested

Date:
May 3, 2004
Source:
Dartmouth College
Summary:
Dartmouth physicians and engineers are collaborating to test three new imaging techniques to find breast abnormalities, including cancer.

HANOVER, N.H. – Dartmouth physicians and engineers are collaborating to test three new imaging techniques to find breast abnormalities, including cancer. Results from the first stage of their research, information about the electro-magnetic characteristics of healthy breast tissue, appears in the May 2004 issue of Radiology, the journal of the Radiological Society of North America.

The interdisciplinary team, which includes researchers from Dartmouth's Thayer School of Engineering and Dartmouth Medical School working with experts at the Norris Cotton Cancer Center and the Department of Radiology at Dartmouth-Hitchcock Medical Center (DHMC), is developing and testing imaging techniques to learn about breast tissue structure and behavior. The techniques are electrical impedance spectral imaging (EIS), microwave imaging spectroscopy (MIS), and near infrared (NIR) spectral imaging.

"This study offers the foundation for future research and clinical trials," says Steven Poplack, associate professor of radiology and OB/GYN at Dartmouth Medical School, doctor of diagnostic radiology and Co-Director for Breast Imaging/Mammography at DHMC, and the lead author of the paper. "We're establishing normal ranges for healthy breast tissue characteristics in order to more easily recognize the abnormalities."

The study of 23 healthy women offers baseline data from the three techniques. The methods are not invasive or particularly uncomfortable for participants, and they all provide detailed information about different properties of breast tissue.

* EIS: This painless test uses a very low voltage electrode system to examine how the breast tissue conducts and stores electricity. Living cell membranes carry an electric potential that affect the way a current flows, and different cancer cells have different electrical characteristics.

* MIS: This exam involves the propagation of very low levels (1000 times less than a cell phone) of microwave energy through breast tissue to measure electrical properties. This technique is particularly sensitive to water. Generally, tumors have been found to have more water and blood than regular tissue.

* NIR: Infrared light is sensitive to blood, so by sending infrared light through breast tissue with a fiber optic array, the researchers are able to locate and quantify regions of oxygenated and deoxygenated hemoglobin. This might help detect early tumor growth and characterize the stage of a tumor by learning about its vascular makeup.

Keith D. Paulsen, Professor of Engineering and a co-author of the study, is the principal investigator of this research program, which is funded by the National Cancer Institute. Other authors on the paper include Alexander Hartov, Paul M. Meaney, Brian W. Pogue, Tor D. Tosteson, Margaret R. Grove, Sandra K. Soho, and Wendy A. Wells, all associated with Dartmouth's Thayer School of Engineering or Dartmouth Medical School.


Story Source:

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


Cite This Page:

Dartmouth College. "Alternative, Supplemental Breast Imaging Methods Tested." ScienceDaily. ScienceDaily, 3 May 2004. <www.sciencedaily.com/releases/2004/05/040503054054.htm>.
Dartmouth College. (2004, May 3). Alternative, Supplemental Breast Imaging Methods Tested. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2004/05/040503054054.htm
Dartmouth College. "Alternative, Supplemental Breast Imaging Methods Tested." ScienceDaily. www.sciencedaily.com/releases/2004/05/040503054054.htm (accessed September 22, 2014).

Share This



More Health & Medicine News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Sierra Leone's Nationwide Ebola Curfew Underway

Sierra Leone's Nationwide Ebola Curfew Underway

Newsy (Sep. 20, 2014) Sierra Leone is locked down as aid workers and volunteers look for new cases of Ebola. Video provided by Newsy
Powered by NewsLook.com
Changes Found In Brain After One Dose Of Antidepressants

Changes Found In Brain After One Dose Of Antidepressants

Newsy (Sep. 19, 2014) A study suggest antidepressants can kick in much sooner than previously thought. Video provided by Newsy
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins