Navigation Links
Ultrasound upgrade produces images that work like 3-D movies

Parents-to-be might soon don 3-D glasses in the ultrasound lab to see their developing fetuses in the womb "in living 3-D, just like at the IMAX movies," according to researchers at Duke University's Pratt School of Engineering.

The same Duke team that first developed real-time, three-dimensional ultrasound imaging says it has now modified the commercial version of the scanner to produce an even more realistic perception of depth. Paired images seem to pop out of the screen when viewed with the special glasses.

The researchers created an updated version of the image-viewing software found on clinical ultrasound scanners, making it possible to achieve a stereo display with no additional hardware.

"To our knowledge, this is the first time it's been made possible to display real-time stereo image pairs on a clinical scanner," said Stephen Smith, a professor of biomedical engineering at Duke. "We believe all 3-D scanners could be modified in this way with only minor software changes."

The new imaging capability can improve the early diagnosis of certain kinds of birth defects of the face and skull and improve surgeons' depth perception during ultrasound-guided medical procedures, including tumor biopsies and robot-assisted surgeries done through tiny "keyhole" incisions.

The Duke team, which also includes Joanna Noble, an undergraduate student, and Matthew Fronheiser, a graduate student in Smith's laboratory, reported the findings in an issue of the journal Ultrasonic Imaging dated July 2006, but published in April 2007. The research was supported by the National Institutes of Health.

Human depth perception is largely the result of stereo vision -- the slightly different perspectives of the same scene that are observed by the left and right eyes, Smith said. The brain processes the information to produce a sense of depth, a phenomenon that can't be achieved when viewing a single, flat image.

Stereoscopic images solve that problem by taking two "snapshots" of the same object from slightly different angles, mimicking the normal difference between left and right eye views.

Special glasses or goggles can then be used to fuse the two images into one, gaining a 3-D effect. This principle lies behind 3-D movies and the familiar Fisher Price View-Master toy. With practice, some people can "defocus" their eyes and fuse the paired images without the aid of any special viewing device. (Find out how at

To demonstrate the new capability, the researchers first generated stereo ultrasound images of a small metal cage. They then advanced to ultrasound images in living animals of a heart valve and blood vessels and needle biopsies of the animals' brains and esophagi.

The researchers have since recorded ultrasound images of a model human fetus that is traditionally used in the testing of fetal ultrasound imaging devices. (Watch the video, including paired images of both the cage and model fetus, at See if you can fuse them without goggles.)

"Thousands of 3-D ultrasound systems in clinics could be upgraded with such new software, and stereoscopic goggles could be issued to them as well," Smith said. "Keepsake DVDs of the fetal exam could also be viewed at home in 3-D stereo."

The goggles would soon become obsolete, he added. New monitors capable of fusing stereo 3-D images without them are now in development.

Source:Duke University

Related biology news :

1. Ultrasounds show mothers drinking shrinks fetal brain
2. Ultrasound may help regrow teeth
3. Lateral thinking produces first map of gene transmission
4. Ebola DNA vaccine produces immune responses in all fully vaccinated volunteers in Phase 1 trial
5. New MRI technique quickly builds 3-D images of knees
6. Everything in its place: Researchers identify brain cells used to categorize images
7. With record resolution and sensitivity, tool images how life organizes in a cell membrane
8. Novel computed imaging technique uses blurry images to enhance view
9. Novel system developed to turn data into real-time, interactive 3-D images

Post Your Comments:

(Date:10/29/2015)... MINNETONKA, Minn. , Oct. 29, 2015   ... that supports the entire spectrum of clinical research, is ... the Minnesota High Tech Association (MHTA) as one of ... in the "Software – Small and Growing" category. The ... and individuals who have shown superior technology innovation and ...
(Date:10/29/2015)... Connecticut , October 29, 2015 ... a biometric authentication company focused on the growing ... smart wallet announces that StackCommerce, a leading marketplace ... be featuring the Wocket® smart wallet on StackSocial ... NXTD ) ("NXT-ID" or the "Company"), a biometric ...
(Date:10/26/2015)... October 26, 2015 ... adds Biometrics Market Shares, ... as well as Emerging Biometrics Technologies: ... to its collection of IT and ... . --> ...
Breaking Biology News(10 mins):
(Date:11/27/2015)... , November 27, 2015 ... Growing popularity of companion diagnostics is ... cancer biomarkers market with pharmaceutical companies and ... companion diagnostic tests. . ... Complete report on global cancer biomarkers ...
(Date:11/25/2015)... , November 26, 2015 ... Biobanking Market 2016 - 2020 report analyzes that ... integrity and quality in long-term samples, minimizing manual ... cost-effectiveness. Automation minimizes manual errors such as mislabeling ... efficiency. Further, it plays a vital role in ...
(Date:11/25/2015)... -- Studies reveal the differences in species ... the way for more effective treatment for one of the ... --> --> Gum disease ... cats, yet relatively little was understood about the bacteria associated ... conducted by researchers from the WALTHAM Centre for Pet Nutrition ...
(Date:11/25/2015)... CITY , Nov. 25, 2015 /PRNewswire/ - Aeterna ... affirms that its business and prospects remain fundamentally ... , Zoptrex™ (zoptarelin doxorubicin) recently received DSMB recommendation ... to completion following review of the final interim ... Phase 2 Primary Endpoint in men with heavily ...
Breaking Biology Technology: