List of Chapters
Transmission Ultrasound Imaging Using 3D Inverse Scattering
Author(s) : John C Klock*; Mark W Lenox; James W Wiskin; Bilal Malik; Rajni Natesan
Transmission ultrasound is the method by which a pulse pressure-wave of sound is propagated through an object and transmitted sound energy is measured at a number of receivers on the opposite side of the object. This differs from standard reflection or B-Mode ultrasound which uses a single transducer to both transmit and measure the signal reflected back toward the original source. By propagating the wave through the object, the full effects of refraction, diffraction, and attenuation are applied to the wave and that information is now available at the receiver.
Pathological Diagnosis with Scanning Acoustic Microscopy and Photoacoustic Microscopy
Author(s) : Bukem Tanoren
Ultrasound has proved its diagnostic value through last five decades. For the observation of soft tissue, ultrasound (US) imaging has become very popular, since it has high axial and lateral resolutions of approximately 20-100 μm and a good penetration depth of approximately 5 mm. US imaging has also low cost, however, it can only provide information about the morphology. Scanning acoustic microscopy (SAM) is an imaging tool which uses high frequency ultrasound and provides morphological and mechanical information about the specimen simultaneously at microscopic levels...
