Navigation Links
Light and sound -- the way forward for better medical imaging
Date:12/12/2007

Detection and treatment of tumours, diseased blood vessels and other soft-tissue conditions could be significantly improved, thanks to an innovative imaging system being developed that uses both light and sound.

The system uses extremely short pulses of low-energy laser light to stimulate the emission of ultrasonic acoustic waves from the tissue area being examined. These waves are then converted into high-resolution 3D images of tissue structure.

This method can be used to reveal disease in types of tissue that are more difficult to image using techniques based on x-rays or conventional ultrasound. For example, the new system is better at imaging small blood vessels, which may not be picked up at all using ultrasound. This is important in the detection of tumours, which are characterised by an increased density of blood vessels growing into the tissue.

The technique, which is completely safe, will help doctors diagnose, monitor and treat a wide range of soft-tissue conditions more effectively.

The first of its kind in the world, the prototype system has been developed by medical physics and bioengineering experts at University College London, with funding from the Engineering and Physical Sciences Research Council (EPSRC). It is soon to undergo trials in clinical applications, with routine deployment in the healthcare sector envisaged within around 5 years.

The emission of an acoustic wave when matter absorbs light is known as the photoacoustic effect. Harnessing this basic principle, the new system makes use of the variations in the sound waves that are produced by different types of soft human tissue to identify and map features that other imaging methods cannot distinguish so well.

By appropriate selection of the wavelength of the laser pulses, the light can be controlled to penetrate up to depths of several centimetres. The technique therefore has important potential for the better imaging of conditions that go deep into human tissue, such as breast tumours, and for contributing to the diagnosis and treatment of vascular disease.

The prototype instrument, however, has been specifically designed to image very small blood vessels (with diameters measured in tens or hundreds of microns) that are relatively close to the surface. Information generated about the distribution and density of these microvessels can in turn provide valuable data about skin tumours, vascular lesions, burns, other soft tissue damage, and even how well an area of tissue has responded to plastic surgery following an operation.

The development process has included theoretical and experimental investigations of photoacoustic interactions with soft tissue, development of appropriate computer image-reconstruction algorithms, and construction of a prototype imaging instrument incorporating the new technique.

This new system offers the prospect of safe, non-invasive medical imaging of unprecedented quality, says Dr Paul Beard who leads UCLs Photoacoustic Imaging Group. It also has the potential to be an extremely versatile, relatively inexpensive and even portable imaging option.


'/>"/>

Contact: Natasha Richardson
natasha.richardson@epsrc.ac.uk
44-017-934-44404
Engineering and Physical Sciences Research Council
Source:Eurekalert

Related medicine news :

1. Stanford study highlights cost-effective method of lowering heart disease risks
2. Study shines more light on benefit of vitamin D in fighting cancer
3. Bacteria See the Light
4. Quantum light beams good for fast technology
5. Free will takes flight: how our brains respond to an approaching menace
6. New MRI finding sheds light on multiple sclerosis disease progressio
7. RA Drugs Linked to Slight Skin Cancer Risk
8. QUANTEL Intends to Strengthen its Dermatology/ Aesthetics Division With the Acquisition of WaveLight Aesthetic GmbH
9. REACH Registry Highlights That Patients With Peripheral Arterial Disease (PAD) Suffer High Rates of Heart Attack, Stroke, Hospitalization, and Death
10. As Sunlight Fades, Look Out for SAD
11. Accident Fund Will Make Board of Water & Lights Ottawa Street Station Power Plant in Lansing Its New National Headquarters
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... ... Agile Software Development, has been awarded a contract by the Center for Medicare ... (BPA) aims to accelerate the enterprise use of Agile methodologies in a consistent ...
(Date:10/12/2017)... Del. (PRWEB) , ... October 12, 2017 , ... ... and advisory services for healthcare compliance program management, will showcase a range of ... National Association for Assisted Living (NCAL) Convention and Expo to be held October ...
(Date:10/12/2017)... ... 2017 , ... The company has developed a suite of ... authorities worldwide. From Children’s to Adults 50+, every formula has been developed by ... , These products are also: Gluten Free, Non-GMO, Vegan, Soy Free, Non-Dairy*, Preservative ...
(Date:10/12/2017)... ... 2017 , ... Asante, a nationally recognized health system in ... existing home health joint venture through an agreement, effective October 1, 2017, to ... home health company with Asante, delivering clinically integrated care, for the past eight ...
(Date:10/12/2017)... ... 2017 , ... HMP , a leader in healthcare events and education, today ... Digital Award for ‘Best B-to-B Healthcare Website.’ Winners were announced during the Eddie & ... award competition recognizes editorial and design excellence across a range of sectors. This year’s ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... 12, 2017 West Pharmaceutical Services, Inc. ... for injectable drug administration, today announced that it will ... on Thursday, October 26, 2017, and will follow with ... expectations at 9:00 a.m. Eastern Time. To participate on ... The conference ID is 94093362. ...
(Date:10/11/2017)... , Oct. 11, 2017  Hill-Rom Holdings, Inc. ... Aspen Surgical facility in Las Piedras, Puerto ... scalpels and blades. ... that the facility sustained minor structural damage, temporary loss ... Maria. Repairs have been completed, manufacturing operations have resumed, ...
(Date:10/5/2017)... 2017  In response to the nationwide opioid ... Surgeons (AAOMS) released prescribing recommendations that urge ibuprofen ... as a first-line therapy to manage a patient,s ... Recognizing the value and importance of ... Prescribing: Acute and Postoperative Pain Management" stresses that ...
Breaking Medicine Technology: