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This objective of this project is to build a real-time 3-D ultrasound imaging system for combat casualty care. The high frame rate necessary for real-time 3-D imaging is obtained using a synthetic aperture beamforming technique. The technique uses a fraction of the transmit pulses required by a conventional imaging system and permits very rapid image acquisition with no degradation of image quality. A network of high speed digital signal processors is currently being designed to implement the beamformer. A new transducer technology is also being explored for the transducer array. This technology should permit a 25-fold increase in the acoustic power delivered by a single array element without a corresponding increase in the excitation voltage. The array will be incorporated into a compact probe head designed to rock the array for real-time 3-D imaging. Besides the scanner development, an extensive set of software tools are being developed to provide easy and accurate analysis of the resulting 3-D data. These tools will allow real-time viewing of arbitrary two-dimensional planes through the data set and will allow quantitative assessment and display of the three-dimensional anatomy.
In this book, we present a dozen state of the art developments for ultrasound imaging, for example, hardware implementation, transducer, beamforming, signal processing, measurement of elasticity and diagnosis. The editors would like to thank all the chapter authors, who focused on the publication of this book. Chapters include: Hardware-Software Partitioning of Digital Signal Processing in Ultrasound Medical Devices a Case Study, Design of Curvilinear Array Apertures for 3D Ultrasonic Imaging, Synthetic Aperture Method in Ultrasound Imaging, Adaptive Beamforming by Phase Coherence Processing, Real-Time Speckle and Impulsive Noise Suppression in 3-D Ultrasound Imaging, Tissue Harmonic Imaging with Coded Excitation, Ultrasonic Measurement and Imaging with Lateral Modulation - Echo, Tissue Motion and Elasticity, High Resolution Ultrasound Imaging of Melanocytic and Other Pigmented Lesions of the Skin, Clinical Usefulness of Contrast-Enhanced Three-Dimensional Ultrasound Imaging with Sonazoid for Hepatic Tumor Lesions, Contrast Enhanced Ultrasonography and Carotid Plaque Imaging: from the Hemodynamic Evaluation to the Detection of Neoangiogenesis - The New Approach to the Identification of the Unstable Plaque: from Morphology to Patophysiology, and Ultrasound Imaging for Pediatric Anesthesia: A Review.
This book is a printed edition of the Special Issue "Ultrafast Ultrasound Imaging" that was published in Applied Sciences
Ultrasonic imaging is a powerful diagnostic tool available to medical practitioners, engineers and researchers today. Due to the relative safety, and the non-invasive nature, ultrasonic imaging has become one of the most rapidly advancing technologies. These rapid advances are directly related to the parallel advancements in electronics, computing, and transducer technology together with sophisticated signal processing techniques. This book focuses on state of the art developments in ultrasonic imaging applications and underlying technologies presented by leading practitioners and researchers from many parts of the world.