PPT-Ultrasound Microscopy and High Frequency Coded Signals

Antti Meriläinen Edward Hæggström Using high frequency acoustic waves for mmµmscale imaging Method is nondestructive It Sees inside the sample Ultrasound images differences of acoustic impedances. Analog and Digital. Analog and Digital Data & Signals. Periodic & Aperiodic Signals. Contents. Information can be voice, image, numeric data, characters or any message that is readable and has meaning to the destination . Lecture 18:. High speed microscopy, Part 2. High speed microscopy, Part . 2: Spatial . light modulator microscope and other 3D sensors. Making laser scanning confocal microscopes faster. Resonant scanner confocal. Krystal . Kerney. Kyle Fontaine. Ryan O’Flaherty. Basics of Ultrasound. Ultrasound is sound with frequencies higher than about 20 kHz. For medical ultrasound, systems operate at much higher frequencies, typically 1 – 10 MHz. Analog and Digital. Analog and Digital Data & Signals. Periodic & Aperiodic Signals. Contents. Information can be voice, image, numeric data, characters or any message that is readable and has meaning to the destination . . Diagnostic. . Doppler Ultrasound. Date. ：. 2013/12/12. Reporter. ：. 林宗民. Outline. Basic Concepts. Doppler Signal. Spectral Doppler. Doppler . Image(Color Doppler, Power Doppler). Conclusion. Kerney. Kyle Fontaine. Ryan O’Flaherty. Basics of Ultrasound. Ultrasound is sound with frequencies higher than about 20 kHz. For medical ultrasound, systems operate at much higher frequencies, typically 1 – 10 MHz. Auckland, New Zealand. Objectives. To compare the frequency of use of ultrasound technology in the pregnant patient at KU Med and Auckland City Hospital. To identify the views of New Zealand OBGYN’s and OB patients about the use of routine ultrasound evaluations in the pregnant patient and evaluate patient concerns about ultrasonography. Presenter. :. Tony . Podkowa. November 13, 2012. Advisor: Dr José R. . Sánchez. Department . of Electrical . and Computer Engineering. Outline. I. Introduction. II. Project Summary. III. Block Diagram. Presenter. :. Tony . Podkowa. November 13, 2012. Advisor: Dr José R. . Sánchez. Department . of Electrical . and Computer Engineering. Outline. I. Introduction. II. Project Summary. III. Block Diagram. Replica of van 1670 Moody Use the information in this tutorial to supplement the visuals in lab and the Chapters 1 8 and 9 in your lab manual Replica of Culpepper tripod microscope built c 1725 by Co been undertaken to solve these and relateddifficulties by developing or assisting automatic coding system International Classification of Diseases (ICD; World Health Organization, 2004)1, Medical Subj Why Ultrasound?. Over half a century old technique! . Arguably the most widely used imaging technologies in medicine. . Portable, free of radiation risk, and relatively inexpensive compared to MRI, CT and PET. Carrier . is strong and stable sinusoidal signal . x(t) = A cos(. w. c . t + . q. ). Carrier transports . information. (audio, video, text, email) across the world. Why is the carrier required?. Audio and video signals cannot travel over large distances since they are weak. Dr Sarah Bohndiek. Learning outcomes. After . these lectures, . you should be able to:. Explain how ultrasound interacts with tissue. Understand where ultrasound imaging contrast comes from. Describe how ultrasound signals are generated and detected.