Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

‘Sonic Flashlight’ Puts Ultrasound Images in Physician’s Line of Sight For Placement of Long-Term Catheters

23.05.2005


A new device, called a “sonic flashlight,” offers a more efficient method of ultrasound guidance to place catheters in patients that will be used for repeated doses of chemotherapy or other treatments, a preliminary study shows.



Ultrasound can be used to help guide catheters, such as peripherally inserted central catheters, into place, said Wilson Chang, PhD, of the University of Pittsburgh and the lead author of the study. The difficulty occurs because the physician or nurse inserting the catheter has to look away from the patient to see the ultrasound monitor, he said. On the other hand, the sonic flashlight—which is an ultrasound probe with a two-inch monitor and a semi-transparent mirror—puts everything in front of the physician or nurse. The probe is placed on the area of the body where the catheter will be inserted. The monitor on the probe shows the ultrasound image, and the mirror makes the ultrasound images appear as if they are actually under the skin, said Dr. Chang.

The device was recently invented, and the study was undertaken to determine if physicians and nurses can easily learn how to use the device and if the device would make the catheter insertion process faster, said Dr. Chang. Sixteen medical students, with no ultrasound experience, performed 60 procedures on a vascular phantom (a body of material resembling body mass), and 14 IV nurses performed 18 procedures on the phantom. Both groups--experienced and inexperienced--were faster and more proficient with the sonic flashlight, compared to the standard ultrasound method, said Dr. Chang. The device has now been used on 15 patients, and “it has worked without a hitch,” according to Dr. Chang.


In 2003 at the University of Pittsburgh, between 10-15 patients per day had long-term catheters inserted under their skin, said Dr. Chang. It is a relatively common procedure, he said. “This device has the potential to increase patient safety, decrease the cost of this procedure and make it more comfortable for the patient because we could do it at the patient’s bedside with less training.” In addition, “the sonic flashlight might enable medical personnel to perform procedures under ultrasound guidance who are currently uncomfortable using ultrasound guidance,” he said.

The study will be presented on May 19 at the American Roentgen Ray Society Annual Meeting in New Orleans, LA.

Keri Sperry | EurekAlert!
Further information:
http://www.arrs.org

More articles from Health and Medicine:

nachricht One gene closer to regenerative therapy for muscular disorders
01.06.2017 | Cincinnati Children's Hospital Medical Center

nachricht The gut microbiota plays a key role in treatment with classic diabetes medication
01.06.2017 | University of Gothenburg

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>