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 http://en.wikipedia.org/wiki/Stereoscopy.)

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 http://youtube.com/watch?v=4VSRlH01mzg. 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:
*Name:
*Comment:
*Email:


(Date:2/27/2017)... , Feb. 27, 2017   Strategic Cyber ... announced it has led a $3.5 million investment in  ... platform. Strategic Cyber Ventures is DC based and is ... Hank Thomas . Ron Gula , also ... Ventures, also participated in this series A round of ...
(Date:2/21/2017)... Ore. , Feb. 22, 2017  IBM (NYSE: ... (Avamere Health Services, Infinity Rehab, Signature Hospice, Home Health, ... will apply the power of IBM cognitive computing to ... centers. By analyzing data streaming from sensors in senior ... and environmental conditions, and obtain deeper learnings into the ...
(Date:2/13/2017)... , Feb. 13, 2017  RSA Conference -- ... platform that is designed to enhance fraud detection ... release in the RSA Fraud & Risk Intelligence ... organizations to leverage additional insights from internal and ... to better protect their customers from targeted cybercrime ...
Breaking Biology News(10 mins):
(Date:3/23/2017)... ... March 23, 2017 , ... Lajollacooks4u is proud to announce it has become the premiere team-building ... challenges for companies around the world, such as Illumina, HP and Qualcomm, and is ranked ... its increasing popularity is due to its new team building format, a way for teams ...
(Date:3/23/2017)... 23, 2017  Northwest Biotherapeutics (OTCQB: NWBO) (NW ... therapies for solid tumor cancers, today announced that ... it announced last Friday, March 17, 2017. ... investors securities totaling 28,843,692 shares, comprised of 18,843,692 ... shares of Class C Warrants pre-funded at the ...
(Date:3/23/2017)... March 23, 2017  GlobeImmune, Inc. today announced it ... sale of 12,835,490 shares of its common stock to ... companies. In connection with the sale of its common stock, ... and issue to GlobeImmune 200,000 shares, an estimated $2.0 ... "We are pleased to enter into this strategic ...
(Date:3/23/2017)... , ... March 23, 2017 , ... ... recently selected by the Connecticut Technology Council (CTC) as a 2017 Women of ... thirteenth annual Women of Innovation Awards Dinner. , The dinner recognizes women accomplished ...
Breaking Biology Technology: