Ultrasound Systems: Transducers, Beamforming & Doppler
This course provides a foundational understanding of diagnostic ultrasound systems, essential for aspiring biomedical equipment service technicians. Students will explore the core principles of acoustic physics, including wave propagation, attenuation, and impedance, as they relate to medical imaging. A detailed examination of piezoelectric materials and transducer design, encompassing various array types and their operational characteristics, will be covered. The course delves into beamforming techniques, focusing on how electronic steering and focusing are achieved to optimize image quality. Furthermore, students will learn about fundamental imaging modes (A-mode, B-mode, M-mode) and the principles of Doppler ultrasound, including continuous wave, pulsed wave, color, and power Doppler, along with their applications and limitations in clinical diagnostics. Emphasis is placed on system functionality and the technical aspects relevant to service and maintenance.
Course outline
Lectures, virtual labs, and graded assignments — completed in your browser.
Syllabus
# ULS 101 - Ultrasound Systems: Transducers, Beamforming & Doppler ## Course Description This course provides a foundational understanding of diagnostic ultrasound systems, essential for aspiring biomedical equipment service technicians. Students will explore the core principles of acoustic physics, including wave propagation, attenuation, and impedance, as they relate to medical imaging. A detailed examination of piezoelectric materials and transducer design, encompassing various array types and their operational characteristics, will be covered. The course delves into beamforming techniques, focusing on how electronic steering and focusing are achieved to optimize image quality. Furthermore, students will learn about fundamental imaging modes (A-mode, B-mode, M-mode) and the principles of Doppler ultrasound, including continuous wave, pulsed wave, color, and power Doppler, along with their applications and limitations in clinical diagnostics. Emphasis is placed on system functionality and the technical aspects relevant to service and maintenance. ## Learning Outcomes Upon successful completion of this course, students will be able to: * Explain the fundamental principles of acoustic wave propagation, interaction with tissue, and relevant physical properties. * Describe the construction and operational principles of various piezoelectric transducer types and array configurations. * Analyze the process of ultrasound beam formation, steering, and focusing, including the role of electronic control. * Differentiate between A-mode, B-mode, and M-mode imaging, detailing their applications and technical underpinnings. * Apply the Doppler effect to explain continuous wave, pulsed wave, color, and power Doppler modalities. * Identify common image artifacts and their origins, and discuss basic troubleshooting approaches for ultrasound system components. ## Topics by Week * **Week 1:** Introduction to Acoustic Physics and Wave Phenomena * **Week 2:** Acoustic Properties of Tissue and Ultrasound Safety * **Week 3:** Piezoelectric Materials and Transducer Construction * **Week 4:** Transducer Arrays: Linear, Convex, and Phased Array Designs * **Week 5:** Ultrasound Beam Characteristics and Resolution * **Week 6:** Beamforming and Focusing Techniques * **Week 7:** A-Mode, B-Mode, and M-Mode Imaging Principles * **Week 8:** Basic System Architecture and Signal Processing * **Week 9:** Continuous Wave and Pulsed Wave Doppler * **Week 10:** Color Flow and Power Doppler Imaging * **Week 11:** Ultrasound System Calibration and Quality Assurance * **Week 12:** Common Artifacts and Basic Troubleshooting * **Week 13:** Midterm review * **Week 14:** Final exam review ## Grading * Knowledge Checks: 15% * Assignments and Labs: 30% * Quizzes: 25% * Final Exam: 30% ## Policies Students are expected to adhere to Anode Technical Institute's academic integrity policies, attendance requirements, and professional conduct guidelines. All assignments must be submitted by the stated deadlines. Accommodations for disabilities will be provided in accordance with institutional policy.