Pulse echo technique - Study guides, Class notes & Summaries

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...

MCPHS IMAGINGU MRI EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED BY EXPERTS Active Shimming is done at the time of imaging and consists of running current through specific coils to increase the strength/homogeneity of certain areas in the MRI scanner to increase image quality. Faraday's Law states that: when a loop of wire is exposed to a moving magnetic field, a voltage will be induced into that loop of wire Calculate the voxel volume for a sequence with a 240x240mm FOV,...

3D gradient echo axial views can be used in cervical spine imaging to provide - Thin, contiguous sections of the spine, the ability to reformat into any other imaging plane, retrospectively, the ability to get either T1, spin density or T2* information by changing parameters. In complete spine imaging, to rule out metastatic lesions of the spinal cord, contrast enhancement can be used with T1 weighted images because - metastatic lesions enhance and normal cord does not Due to the difference...

In nonlinear propagation, additional frequencies appear that are ___ and ___ multiples of the fundamental frequency. They are called ___. Even Odd Harmonics Duty factor equation DF = PD/PRP Brainpower Read More Harmonics are created where? Beams main axis A sector image with a curved top is produced by which type of transducer? Curvilinear / Modified Sector / Convex Transducer Diagnostic sonography encompasses ____________ and __________ Sonography & Doppler p...

The 2 types of enhancement media described by Lauffer, the mechanism of T1 agents is - Answer to decrease T1 relaxation time, thus emitting high signal An analogy for the decoding of the MR signal through Fourier Transform - Answer Basilar membrane processing sound Logically each line of phase encoding data is combined to allow the FT to determine the position along the y-axis. The number of phase encoding steps determines - Answer the number of pixels along the y-axis In a gradie...

ARMRIT Practice Questions with 100% Correct Answers |VERIFIED| The 2 types of enhancement media described by Lauffer, the mechanism of T1 agents is to decrease T1 relaxation time, thus emitting high signal An analogy for the decoding of the MR signal through Fourier Transform Basilar membrane processing sound Logically each line of phase encoding data is combined to allow the FT to determine the position along the y-axis. The number of phase encoding steps determines the number of pi...

ARDMS Echo Exam Questions With 100% Correct Answers. Where is the CS located - answerPosterior to the AV groove Scatter = - answerRBC's Most common congenital anomaly most frequently seen in adults - answerBi-cuspid valve In order to record a vegetation of endocarditis by echo the veg must have a diameter of at least - answer3 mm Which M mode finding is considered to be a specific indicator of a fenestrated Aortic Valve? - answerDiastolic flutter of the AoV Fenestrated - answerwindow l...

The 2 types of enhancement media described by Lauffer, the mechanism of T1 agents is - Answer-to decrease T1 relaxation time, thus emitting high signal An analogy for the decoding of the MR signal through Fourier Transform - Answer-Basilar membrane processing sound Logically each line of phase encoding data is combined to allow the FT to determine the position along the y-axis. The number of phase encoding steps determines - Answer-the number of pixels along the y-axis In a gradient echo ...

The 2 types of enhancement media described by Lauffer, the mechanism of T1 agents is - ANSWER to decrease T1 relaxation time, thus emitting high signal An analogy for the decoding of the MR signal through Fourier Transform - ANSWER Basilar membrane processing sound Logically each line of phase encoding data is combined to allow the FT to determine the position along the y-axis. The number of phase encoding steps determines - ANSWER the number of pixels along the y-axis In a gradient ech...

The direction of the Doppler shift determines: A. the peak velocity of the flow B. the color Doppler hue C. the average velocity of the flow D. the color Doppler luminance -answer- B. the color Doppler hue Color Hue - perceived color used to demonstrate direction (red and blue or positive and negative shift) What is the primary factor that determines the resistance characteristics of the arterial signal displayed by PW Doppler? A. vessel course and location B. branch number C. part it...