Ultrasound and CMUT Technologies: Principles, Transducer Engineering, Clinical Systems, and Intelligent Imaging

Ultrasound and CMUT Technologies: Fundamentals, Transducer Design, Clinical Applications, and Intelligent Imaging presents a comprehensive and integrated treatment of ultrasound as both a mature clinical modality and a rapidly evolving intelligent technology platform. Bridging foundational physics, transducer engineering, system design, and emerging applications, this book offers a unified perspective on how ultrasound is being transformed by advances in microfabrication, materials science, artificial intelligence, and computational modelling.

The book begins with the physical foundations of ultrasound, establishing the governing principles of acoustic wave propagation, attenuation, scattering, nonlinear effects, and bioacoustics interactions. These fundamentals provide the analytical framework required to understand image formation, resolution–penetration trade-offs, artefacts, and safety considerations across diagnostic and therapeutic contexts.

A central focus of the text is capacitive micromachined ultrasonic transducers (CMUTs). The book traces the evolution of ultrasound transduction from conventional piezoelectric devices to MEMS-based electrostatic architectures, detailing CMUT operating principles, equivalent circuit models, Multiphysics simulation methods, fabrication techniques, and array design strategies. Architectural innovations—from classical air-gap structures to emerging material-filled and interface-amplified designs—are analysed in depth, highlighting how CMUTs redefine bandwidth, integration, scalability, and system-level performance.

Building on this technological foundation, the book systematically explores clinical ultrasound applications across major organ systems, including brain, cardiac, pulmonary, renal, and hepatic imaging. Diagnostic techniques are presented alongside CMUT-specific advantages, AI-enabled workflows, and advanced imaging modes. Dedicated sections address therapeutic and interventional ultrasound, including high-intensity focused ultrasound (HIFU), physiotherapy, neuromodulation, and ultrasound-enhanced drug delivery, with emphasis on treatment planning, monitoring, and safety.

The final sections examine the convergence of ultrasound with artificial intelligence, robotics, and digital systems. AI-driven image enhancement, automated measurements, diagnostic decision support, and CMUT–AI co-designed platforms are discussed as part of a broader shift toward adaptive, data-driven, and autonomous ultrasound systems. Emerging trends such as super-resolution imaging, molecular ultrasound, implantable and wearable devices, and distributed intelligent acoustic platforms are presented as indicators of ultrasound’s expanding role in future medicine and engineering.

Written for graduate students, researchers, clinicians, and practicing engineers, this book serves both as a rigorous reference and a forward-looking guide. By integrating physics, devices, computation, and clinical translation within a single coherent framework, it positions ultrasound not merely as an imaging modality, but as a foundational technology for intelligent sensing, intervention, and therapeutic action in the decades to come.