Nav: Home

Ultrasound techniques give warning signs of preterm births

December 03, 2019

SAN DIEGO, December 3, 2019 -- Ultrasound can be used to examine cervix tissue and improve diagnostics, which is essential for predicting preterm births. Ultrasound data is used to compare two techniques for evaluating changes in cervical tissue throughout pregnancy.

Researchers at the University of Illinois at Chicago and the University of Illinois at Urbana-Champaign will discuss ultrasound techniques used during pregnancy at the 178th Meeting of the Acoustical Society of America, held at the Hotel Del Coronado in San Diego. "Comparison of two spectral-based techniques for estimating the attenuation coefficient from human cervix" is part of a session on biomedical acoustics and the application of quantitative ultrasound in humans.

Ziyang Xu, Aiguo Han, Douglas G. Simpson, W.D. O'Brien, Jr. and Barbara L. McFarlin are looking at ultrasonic attenuation coefficients that can help scientists characterize cervical changes throughout pregnancy and in preparation for birth before other symptoms, such as contractions or dilation, occur. Researchers compared two methods of finding the ultrasonic attenuation coefficient: the spectral difference and the spectral log difference techniques.

"Our research is based upon the biology of cervical changes in preparation for labor and childbirth, namely collagen remodeling. Ultrasonic attenuation is sensitive to these changes, as during pregnancy the collagen fibers are tightly packed and have a high attenuation," said McFarlin. "In preparation for labor and birth, there is increased collagen disorganization, increased water content and inflammation of the cervix, with low ultrasonic attenuation."

After gathering data on the two ultrasound techniques, the authors identified which performed better when it came to detecting cervical changes.

"This ASA presentation primarily evaluates the agreement in attenuation coefficient estimates between the two spectral-based techniques without referring to clinical outcomes. Future research is needed to evaluate the two techniques in terms of the ability to improve clinical diagnostics," said Han.

Han's presentation 2pBAb9, "Comparison of two spectral-based techniques for estimating the attenuation coefficient from human cervix," will be at 3:50 p.m. PT, Tuesday, Dec. 3, in the Garden room of the Hotel del Coronado in San Diego.
-end-
USEFUL LINKS

Main meeting website: http://acousticalsociety.org/asa-meetings/

Technical program: https://asa2019fall.abstractcentral.com/planner.jsp

Press Room: http://acoustics.org/world-wide-press-room/

WORLDWIDE PRESS ROOM

In the coming weeks, ASA's Worldwide Press Room will be updated with additional tips on dozens of newsworthy stories and with lay language papers, which are 300-500 word summaries of presentations written by scientists for a general audience and accompanied by photos, audio and video. You can visit the site during the meeting at http://acoustics.org/world-wide-press-room/.

PRESS REGISTRATION

We will grant free registration to credentialed journalists and professional freelance journalists. If you are a reporter and would like to attend, contact the AIP Media Line at 301-209-3090. For urgent requests, staff at media@aip.org can also help with setting up interviews and obtaining images, sound clips or background information.

LIVE MEDIA WEBCAST

Press briefings will be webcast live from the conference Tuesday, Dec. 3, in Hospitality Suite 3103 of the Hotel del Coronado in San Diego. Register at https://webcast.aipwebcasting.com/go/asa-dec3-19 to watch the live webcast. The schedule will be posted at the same site as soon as it is available.

ABOUT THE ACOUSTICAL SOCIETY OF AMERICA

The Acoustical Society of America (ASA) is the premier international scientific society in acoustics devoted to the science and technology of sound. Its 7,000 members worldwide represent a broad spectrum of the study of acoustics. ASA publications include The Journal of the Acoustical Society of America (the world's leading journal on acoustics), Acoustics Today magazine, books, and standards on acoustics. The society also holds two major scientific meetings each year. For more information about ASA, visit our website at http://www.acousticalsociety.org.

Acoustical Society of America

Related Pregnancy Articles:

Are women using e-cigarettes during preconception and/or pregnancy?
A new study of 1,365 racially/ethnically diverse, low-income pregnant women found that 4% reported e-cigarette use.
A better pregnancy test for whales
To determine whale pregnancy, researchers have relied on visual cues or hormone tests of blubber collected via darts, but the results were often inconclusive.
Cannabis use during pregnancy
The large health care system Kaiser Permanente Northern California provides universal screening for prenatal cannabis use in women during pregnancy by self-report and urine toxicology testing.
Questions and answers about cannabis use during pregnancy
A new study shows that women have many medical questions about the use of cannabis both before and during pregnancy, and during the postpartum period while breastfeeding.
The effect of taking antidepressants during pregnancy
Exposure to antidepressants during pregnancy and the first weeks of life can alter sensory processing well into adulthood, according to research in mice recently published in eNeuro.
Is ivermectin safe during pregnancy?
Is it safe to give ivermectin to pregnant women? To answer this question, researchers from the Barcelona Institute for Global Health (ISGlobal), an institution supported by 'la Caixa,' conducted a systematic review and meta-analysis of studies that reported cases of accidental exposure to the drug among pregnant women.
Going to sleep on your back in late pregnancy
This study looked at whether going to sleep on your back in the third trimester of pregnancy was associated with average lower birth weights.
Opioid use disorder in pregnancy: 5 things to know
Opioid use is increasing in pregnancy as well as the general population.
Medical imaging rates during pregnancy
Researchers looked at rates of medical imaging (CT, MRI, conventional x-rays, angiography, fluoroscopy and nuclear medicine) during pregnancy in this observational study that included nearly 3.5 million pregnant women in the United States and Canada from 1996 to 2016.
New research on diet and supplements during pregnancy and beyond
The foods and nutrients a woman consumes while pregnant have important health implications for her and her baby.
More Pregnancy News and Pregnancy Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Listen Again: The Biology Of Sex
Original broadcast date: May 8, 2020. Many of us were taught biological sex is a question of female or male, XX or XY ... but it's far more complicated. This hour, TED speakers explore what determines our sex. Guests on the show include artist Emily Quinn, journalist Molly Webster, neuroscientist Lisa Mosconi, and structural biologist Karissa Sanbonmatsu.
Now Playing: Science for the People

#569 Facing Fear
What do you fear? I mean really fear? Well, ok, maybe right now that's tough. We're living in a new age and definition of fear. But what do we do about it? Eva Holland has faced her fears, including trauma and phobia. She lived to tell the tale and write a book: "Nerve: Adventures in the Science of Fear".
Now Playing: Radiolab

The Wubi Effect
When we think of China today, we think of a technological superpower. From Huweai and 5G to TikTok and viral social media, China is stride for stride with the United States in the world of computing. However, China's technological renaissance almost didn't happen. And for one very basic reason: The Chinese language, with its 70,000 plus characters, couldn't fit on a keyboard.  Today, we tell the story of Professor Wang Yongmin, a hard headed computer programmer who solved this puzzle and laid the foundation for the China we know today. This episode was reported and produced by Simon Adler with reporting assistance from Yang Yang. Special thanks to Martin Howard. You can view his renowned collection of typewriters at: antiquetypewriters.com Support Radiolab today at Radiolab.org/donate.