AccessMyLibrary provides FREE access to over 30 million articles from top publications available through your library.
Create a link to this page
Copy and paste this link tag into your Web page or blog:
WASHINGTON -- Waiting until after 18 weeks' gestation to perform abdominal ultrasound on an obese gravida greatly improves fetal craniospinal visualization, Dr. Israel Hendler reported at the annual meeting of the Society for Gynecologic Investigation.
A thick layer of abdominal fat occludes ultrasound waves, and before 18 weeks the fetus is too small for those diminished waves to reach it adequately, Dr. Hendler said in an interview.
"The fat layer never really thins out, because these mothers tend to put on even more weight during pregnancy," said Dr. Hendler of Wayne State University, Detroit. But by 18 weeks, the fetus is big enough to counteract the occluding effects of the tissue.
After poor scan results forced him to repeatedly reschedule overweight mothers for ultrasounds, Dr. Hendler undertook a database study of the ultrasound records of 11,019 singleton pregnancies from 14 to 24 weeks' gestation.
About 36% of the mothers were clinically obese, ...
Source: HighBeam Research, Delay abdominal ultrasounds on obese gravidas. (Improves...