Ultrasound physics 1 - Study guides, Class notes & Summaries

Ultrasound Physics - Mock Exam Questions for SPI Questions And Answers 100% Pass Which of the following transducers will have the worst axial resolution? a. Vector array, 3 MHz b. Linear Sequential Array, 6 MHZ c. Linear Phased Array 7.5 MHZ d. Annular Array, 6 MHz - answerVector array, 3 MHz A sound wave is traveling in the body and propagates from muscle to air. What percentage of the sound wave is most likely reflected at the muscle-air boundary? a. 0.5% b. 75% c. 25% d. 5% e. 99...

What is frequency determined by? - ️️The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies - ️️Lower What is the reciprocal of frequency and what is the symbol - ️️Period, T The time it takes for 1 cycle to occur - ️️Period What is propagation speed determined by - ️️Stiffness and density of the medium Propagation speed of sound through soft tissue - ️️1,540 m/s Increasing...

What are the imaging modalities that use ionizing radiation? - correct answer 1. Radiographs (x-rays, conventional films, plain films) 2. Computed tomography (CT) 3. Nuclear medicine (NM) What are the imaging modalities that do not use ionizing radiation? - correct answer 1. Magnetic resonance imaging (uses magnet and radio waves) 2. ultrasound (uses sound waves) The birth of radiology start...

DMS 220 - Ultrasound Physics Chapter 15 Packet Question

ARDMS SPI STUDY GUIDE QUESTIONS AND ANSWERS ALREADY PASSED In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in Hertz (Hz) is Cycles per Second Not affected by sonographer Increase Frequency; Decrease Depth A period is the length of time it takes for one complete wavelength to pass a fixed poin...

Edelman SPI review questions & Answers 2023. ______ is the distance covered by one cycle. a) pulse length b) wavelength c) cycle distance d) cycle duration ______ is the time to complete one cycle a) pulse duration b) pulse period c) period d) duration period ________ is a redirection of an ultrasound bean in many directions as a result of a rough boundary between two media: a) refraction b) Rayleigh Scattering c) scattering d) reflection _________ resolution is...

Ultrasound Physics - Mock Exam Questions for SPI || Complete Questions & Answers (Rated A+) Ultrasound Physics - Mock Exam Questions for SPI || Complete Questions & Answers (Rated A+) What are the units of power? a. millimeters b. Hertz c. Watts/cm squared d. meters/sec e. Watts - ANSWER - Watts The Power in a beam is 1 watt and the area is 5cm^2. What is the beams intensity? a. 5 w/cm^2 b. 1 w/cm^2 c. 0.2 w/cm^2 d. 1 watt - ANSWER - 0.2 w/cm^2 If the intensity remains the s...

ARDMS Ultrasound Physics & Instrumentation Practice Exam

2024_AQA A-Level Physics Paper 3 Section B Medical Physics (Merged Question Paper and Marking Scheme) Monday 17 June 2024 Please write clearly in block capitals. Centre number Surname Forename(s) Candidate number Candidate signatu re A-level PHYSICS Paper 3 Section B I declare this is my own work. Medical physics Monday 17 June 2024 Materials For this paper you must have:  a pencil and a ruler  a scientific calculator  a Data and Fo...

CCI: Physics of Ultrasound-URR Questions and Answers Latest Version (2024/2025) 100% Pass What is the primary purpose of ultrasound in medical imaging? A) To measure the size of organs B) To create images of internal body structures using sound waves C) To detect electrical activity in the heart D) To monitor blood pressure Which of the following best describes the term "frequency" in ultrasound imaging? A) The speed at which sound waves travel through a medium B) The num...