Featured Research

from universities, journals, and other organizations

Blood pressure measured with ultrasound scanner

Date:
June 14, 2011
Source:
Eindhoven University of Technology
Summary:
Researchers have developed a new technique to measure the blood pressure. Using an ultrasound scanner, which is commonly used for pregnancy ultrasound scans, the new technique enables patient-friendly local blood pressure measurements.

Researchers at Eindhoven University of Technology, together with the Italian company Esaote, have developed a new technique to measure blood pressure. Using an ultrasound scanner, which is commonly used for pregnancy ultrasound scans, the new technique enables patient-friendly local blood pressure measurements.This will provide much more information about the vascular system than the traditional measurement method using an inflatable cuff on the arm. As a result, physicians will be able in the future to quickly gain an overall impression of the condition of the heart and blood vessels.

This is in line with the current trend in healthcare with an increasing focus on the prevention of cardiovascular disease.

"Scientists have for years been looking for a non-invasive method to measure the blood pressure pulses at highly localized points in the body," explains TU/e researcher dr. Nathalie Bijnens of the Department of Biomedical Engineering. "The usual method is to insert a catheter with a pressure sensor. But that's an invasive procedure, and not suitable for preventive diagnostics. There's also the traditional method using an inflatable arm cuff. But that doesn't allow any conclusions to be drawn about -- for example -- the blood pressure in the carotid artery. In this method, the cuff is inflated until the blood flow in the arm is stopped, allowing the systolic and diastolic (maximum and minimum) values in the arm to be measured. That means you won't find anyone willing to have the blood pressure in their neck measured using an inflatable cuff."

Atherosclerosis

The new technique uses ultrasound to make patient-friendly blood pressure measurements at many points in the body. All that is needed is to apply a small amount of gel so that the ultrasound scanner makes good contact with the skin. The key to the new technique is above all the sophisticated signal processing. The researchers are able to achieve good visualization of the blood flow and the blood vessel wall motion, from which the blood pressure can be derived, by means of a mathematical model. They can also see the variations in blood pressure and flow in time as a result of the beating of the heart. The simultaneous knowledge of pressure and flow also provides information about 'downstream' parts of the vascular system. The new technique will allow physicians to carry out preventive investigations of the cardiovascular system, for example, and to monitor the development of diseases such as atherosclerosis, thrombosos or aneurysms (dangerous dilations of a blood vessel).

Preventive scanning

The researchers published their results last month in the scientific journal Ultrasound in Medicine and Biology. The method was first tested on elastic plastic tubes, and after that on pigs' carotid arteries from an abattoir, with good results. The technique is currently being tested on volunteers, in advance of clinical tests with patients. The results are promising. It is still expected to take several years before the technique can be used in clinical practice, for example in family doctors' surgeries, says Bijnens . "By performing a simple scan, the physician can detect vascular disease in an early stage and decide for a preventive treatment."

New direction

This new method for measuring blood pressure is part of a new direction for the research group led by prof. Frans van de Vosse. The group's work focuses on making mathematical models of the vascular system. "For example we have developed a model to locate the best places to enter veins in the arms of dialysis patients," says Van de Vosse. "But that model needs detailled input, which is why we decided to develop a measurement method ourselves."


Story Source:

The above story is based on materials provided by Eindhoven University of Technology. Note: Materials may be edited for content and length.


Journal Reference:

  1. Bart W.A.M.M. Beulen, Nathalie Bijnens, Gregory G. Koutsouridis, Peter J. Brands, Marcel C.M. Rutten, Frans N. van de Vosse. Toward Noninvasive Blood Pressure Assessment in Arteries by Using Ultrasound. Ultrasound in Medicine & Biology, 2011; 37 (5): 788 DOI: 10.1016/j.ultrasmedbio.2011.01.020

Cite This Page:

Eindhoven University of Technology. "Blood pressure measured with ultrasound scanner." ScienceDaily. ScienceDaily, 14 June 2011. <www.sciencedaily.com/releases/2011/06/110614095651.htm>.
Eindhoven University of Technology. (2011, June 14). Blood pressure measured with ultrasound scanner. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2011/06/110614095651.htm
Eindhoven University of Technology. "Blood pressure measured with ultrasound scanner." ScienceDaily. www.sciencedaily.com/releases/2011/06/110614095651.htm (accessed October 2, 2014).

Share This



More Health & Medicine News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pregnancy Spacing Could Have Big Impact On Autism Risks

Pregnancy Spacing Could Have Big Impact On Autism Risks

Newsy (Oct. 1, 2014) A new study says children born less than one year and more than five years after a sibling can have an increased risk for autism. Video provided by Newsy
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
Powered by NewsLook.com
Insertable Cardiac Monitor

Insertable Cardiac Monitor

Ivanhoe (Oct. 1, 2014) A heart monitor the size of a paperclip that can save your life. The “Reveal Linq” allows a doctor to monitor patients with A-Fib on a continuous basis for up to 3 years! Video provided by Ivanhoe
Powered by NewsLook.com
Attacking Superbugs

Attacking Superbugs

Ivanhoe (Oct. 1, 2014) Two weapons hospitals can use to attack superbugs. Scientists in Ireland created a new gel resistant to superbugs, and a robot that can disinfect a room in minutes. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins