3D Ultrasound Imaging

Historic Review for US. Developed from 1960'HandyReal-timeHarmlessLow costThe most used imaging equipmentNoisyPositioning. The Trends of Medical Imaging. From 2D to 3D.From structural to functional.From post-processing to real time processing.From harmful to safe.From high cost to low cos

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DOPPLER ULTRASOUND

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Ultrasound Imaging (Basics)

Ultrasound Imaging (Basics). 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

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Medical Ultrasound Imaging

Presentation Overview. General ultrasound methodComparison between ultrasound and x-rayHistoryVarious usesPhysics of the methodCurrent stateContinuing technologyConclusion. General method. Place small transducer against the skinEmits high frequency sound wavesDetects bounce back wavesDifferent tissues reflect different wavesReconstruction softwareViewing structure on a screen.

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Ultrasound and Doppler Basics

Ultrasound and Doppler Basics. Dr. Aarathy Appukuttan Final year resident Radiodiagnosis. Ultrasound imaging, also called sonography, involves exposing part of the body to high- frequency sound waves to produce images of the inside of the body.

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TISSUE DOPPLER IMAGING

TISSUE DOPPLER IMAGING. Introduction . TDI uses Doppler shift data from the myocardium to obtain qualitative and quantitative information on myocardial wall motion. Measures the velocity of myocardial wall motion Low velocity 5 to 20 cm/s

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Color Imaging

Color Imaging. Describing Chromatic lights. Radiance (watt): Total amount of energy flow from the light source. Luminance (lumens, lm): measure of amount of energy an observer perceives from a light source. It varies based on distance from the source, wavelength, etc. Brightness:

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Ultrasound Imaging

Ultrasound Imaging. Today & Tomorrow Challenges & Opportunities. Xiaochen (Sean) Xu 1. Medical Business Unit, Texas Instruments 2. NIH Resource on Medical Ultrasonic Transducer Technology, Univ. of Southern California xiaochenxu@ti.com October 19, 2007. Background. 15M grant available

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TISSUE DOPPLER IMAGING

TISSUE DOPPLER IMAGING. DR PRASANTH S. Introduction. TDI uses Doppler shift data from the myocardium to obtain qualitative and quantitative information on myocardial wall motion. Measures the velocity of myocardial wall motion Low velocity 5 to 20 cm/s

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Color Doppler ultrasound in the high risk pregnancy

Color Doppler ultrasound in the high risk pregnancy. Presented by: Dr. Farzad Afzali Kasra medical imaging center. An early stage in fetal adaptation to hypoxemia increased blood flow in DV to protect the brain, heart, and adrenals

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Vessel Recognition in Color Doppler Ultrasound Imaging

Vessel Recognition in Color Doppler Ultrasound Imaging. Ashraf A Saad 1 Electrical Engineering Department, University of Washington 2 Philips Healthcare, Ultrasound Division. Outline of the Work. Introduction The Shape Decomposition Approach Fringeline Tracking for Phase Unwrapping

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Ultrasound Imaging

Ultrasound Imaging. Basic Principle: sound wave pulse emitted at >20 kHZ , some reflected, and some transmitted. Reflection from single signal – A-scan. Reproduced from http://folk.ntnu.no/stoylen/. B-Mode Imaging. E nergy displayed as: - amplitude, as in A-mode,

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Ultrasound Medical Imaging

Ultrasound Medical Imaging. Imaging Science Fundamentals. Sound waves. Sound waves are mechanical waves. Not in electromagnetic spectrum! Just like light waves, sound waves transmit energy, and can be described in terms of wavelength, period, speed, and amplitude

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TISSUE DOPPLER IMAGING

TISSUE DOPPLER IMAGING. Introduction. TDI uses Doppler shift data from the myocardium to obtain qualitative and quantitative information on myocardial wall motion. Measures the velocity of myocardial wall motion Low velocity 5 to 20 cm/s

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Medical Imaging Ultrasound

Medical Imaging Ultrasound. Edwin L. Dove 1412 SC edwin-dove@uiowa.edu 335-5635. 3D Reconstruction. Why Ultrasound in Cardiology?. Portable, relatively cheap Non-ionizing During the echocardiogram, it is possible for the cardiologist to: Watch the heart’s motion – in 2D real-time

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Ultrasound Imaging

Ultrasound Imaging. Atam Dhawan. Ultrasound. Sound waves above 20 KHz are usually called as ultrasound waves. Sound waves propagate mechanical energy causing periodic vibration of particles in a continuous, elastic medium.

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Introduction to Carotid Ultrasound and Transcranial Doppler Ultrasound

Introduction to Carotid Ultrasound and Transcranial Doppler Ultrasound. Ryan Hakimi, DO, MS Director, Critical Care Neurology Associate Professor Department of Neurology The University of Oklahoma Health Sciences Center January 14, 2016. Disclosures.

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Vessel Recognition in Color Doppler Ultrasound Imaging

Vessel Recognition in Color Doppler Ultrasound Imaging. Ashraf A Saad 1 Electrical Engineering Department, University of Washington 2 Philips Healthcare, Ultrasound Division. Outline of the Work. Introduction The Shape Decomposition Approach Fringeline Tracking for Phase Unwrapping

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Ultrasound Imaging

Ultrasound Imaging. Atam Dhawan. Ultrasound. Sound waves above 20 KHz are usually called as ultrasound waves. Sound waves propagate mechanical energy causing periodic vibration of particles in a continuous, elastic medium.

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Ultrasound imaging

Preparation for an ultrasound imaging exam is not that hard, really. Itu2019s quite easy and straightforward. Wear something that feels comfortable, preferably loose-fitting clothes. During the exam, you may need to remove clothing from the area that is to be examined. You will be asked to wear a hospital gown during the exam.

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Ultrasound Imaging

An ultrasound is a painless diagnostic technique that makes use of sound waves that travel through the body, as a result, they bounce off tissues and organs in certain ways. The reflected waves can be used to make images of the organs inside. Since there is no radiation, these waves do not hurt the body. Ultrasound imaging may be done in a health provideru2019s office, or in a hospital, or in an outpatient facility, depending upon the reason and details of the case.

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Doppler Ultrasound Imaging

Doppler Ultrasound Imaging

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