Featured Research

from universities, journals, and other organizations

New findings on aging pediatric bruises

Date:
January 26, 2012
Source:
University of Notre Dame
Summary:
A multi-university research group has recently published a paper detailing new work on the analysis and dating of human bruises. The research will have particular application to pediatric medicine, as bruise age is often key evidence in child abuse cases.

A multi-university research group, which includes several University of Notre Dame faculty and graduate students, has recently published a paper detailing new work on the analysis and dating of human bruises. The research, which is funded by the Gerber Foundation, will have particular application to pediatric medicine, as bruise age is often key evidence in child abuse cases.

Using a combination of modeling and spectroscopy measurements, the researchers have advanced our understanding of the changing composition of aging bruises and developed new tools for detailed biomedical studies of human skin tissue.

Spectroscopic measurement determines the chemical composition of tissue by measuring the extent to which it absorbs and reflects light of different wave lengths. In this case, the researchers examined accidental bruises to determine their concentrations of bilirubin, blood volume fraction, and blood oxygenation, which peak at various periods after contusion occurs.

The data were combined with modeling via Monte Carlo methods, which are often used to simulate highly complex systems -- like the propagation of electromagnetic waves in healthy and contused skin -- involving many interacting degrees of freedom. The result was a multilayered model in which each layer is characterized by a number of parameters, including thickness of layer, absorption and scattering properties, refractive index, and scattering anisotropy factors. Previous research had produced models simulating only one to three layers of skin; this one simulates seven, allowing for a much clearer spectroscopic picture of a bruise's composition and age.

The paper, titled "Reflectance spectrometry of normal and bruised human skins: experiments and modeling" is published in the current issue of Physiological Measurement. The authors are Oleg Kim (Notre Dame), John McMurdy (Brown University), Collin Lines (Notre Dame), Susan Duffy (Hasbro Children's Hospital), Gregory Crawford (Notre Dame) and Mark Alber (Notre Dame).


Story Source:

The above story is based on materials provided by University of Notre Dame. The original article was written by Rachel Fellman and Marissa Gebhard. Note: Materials may be edited for content and length.


Journal Reference:

  1. Oleg Kim, John McMurdy, Collin Lines, Susan Duffy, Gregory Crawford, Mark Alber. Reflectance spectrometry of normal and bruised human skins: experiments and modeling. Physiological Measurement, 2012; 33 (2): 159 DOI: 10.1088/0967-3334/33/2/159

Cite This Page:

University of Notre Dame. "New findings on aging pediatric bruises." ScienceDaily. ScienceDaily, 26 January 2012. <www.sciencedaily.com/releases/2012/01/120126161131.htm>.
University of Notre Dame. (2012, January 26). New findings on aging pediatric bruises. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2012/01/120126161131.htm
University of Notre Dame. "New findings on aging pediatric bruises." ScienceDaily. www.sciencedaily.com/releases/2012/01/120126161131.htm (accessed April 16, 2014).

Share This



More Health & Medicine News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. Video provided by Newsy
Powered by NewsLook.com
Cognitive Function: Is It All Downhill From Age 24?

Cognitive Function: Is It All Downhill From Age 24?

Newsy (Apr. 15, 2014) A new study out of Canada says cognitive motor performance begins deteriorating around age 24. Video provided by Newsy
Powered by NewsLook.com
How Mt. Everest Helped Scientists Research Diabetes

How Mt. Everest Helped Scientists Research Diabetes

Newsy (Apr. 15, 2014) British researchers were able to use Mount Everest's low altitudes to study insulin resistance. They hope to find ways to treat diabetes. Video provided by Newsy
Powered by NewsLook.com
Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Newsy (Apr. 14, 2014) Richard van As lost all fingers on his right hand in a woodworking accident. Now, he's used the incident to create a prosthetic to help hundreds. 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