Handheld probe can produce detailed images of blood vessels and other internal body parts without bulky, expensive instruments
A new handheld probe developed by a team of university and industry researchers in the Netherlands and France could give doctors powerful new imaging capabilities right in the palms of their hands. The imaging system, which is described in a paper published in The Optical Society’s (OSA) open-access journal Optics Express, shrinks a technology that once filled a whole lab bench down to a computer screen and a small probe about the size of a stapler.
Photoacoustic/ultrasound images taken with the new system show a human finger joint from different angles. The images on the right (b and d) show anatomical structures revealed by the ultrasound. The images on the left (a and c) show the photoacoustics data overlaying the ultrasound data. The bright yellow and red at the top of the finger show the skin and blood vessels running parallel to the finger.
Credit: Pim van den Berg/ Khalid Daoudi
Paper: “Handheld probe integrating laser diode and ultrasound transducer array for ultrasound/photoacoustic dual modality imaging,” K. Daoudi et al., Optics Express, Vol. 22, Issue 21, pp. 26365-26374 (2014). doi. 10.1364/OE.22.026365