title: Imaging Performance of Quantitative Transmission Ultrasound.
abstract: Quantitative Transmission Ultrasound (QTUS) is a tomographic transmission ultrasound modality that is capable of generating 3D speed-of-sound maps of objects in the field of view. It performs this measurement by propagating a plane wave through the medium from a transmitter on one side of a water tank to a high resolution receiver on the opposite side. This information is then used via inverse scattering to compute a speed map. In addition, the presence of reflection transducers allows the creation of a high resolution, spatially compounded reflection map that is natively coregistered to the speed map. A prototype QTUS system was evaluated for measurement and geometric accuracy as well as for the ability to correctly determine speed of sound.
authors.affiliation: QT Ultrasound, LLC, Novato, CA 94949, USA.
authors.forename: Mark W
authors.initials: MW
authors.lastname: Lenox
authors.affiliation: QT Ultrasound, LLC, Novato, CA 94949, USA.
authors.forename: James
authors.initials: J
authors.lastname: Wiskin
authors.affiliation: Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
authors.forename: Matthew A
authors.initials: MA
authors.lastname: Lewis
authors.affiliation: QT Ultrasound, LLC, Novato, CA 94949, USA.
authors.forename: Stephen
authors.initials: S
authors.lastname: Darrouzet
authors.affiliation: QT Ultrasound, LLC, Novato, CA 94949, USA.
authors.forename: David
authors.initials: D
authors.lastname: Borup
authors.affiliation: QT Ultrasound, LLC, Novato, CA 94949, USA.
authors.forename: Scott
authors.initials: S
authors.lastname: Hsieh