Axial resolution - Study guides, Class notes & Summaries

reflection return of the ultrasound wave to the transducer from a smooth surface when does the greatest amount of reflection occur when the incident beam is perpendicular to structure (specular reflection) scatter deflection of ultrasound waves from small structures (red blood cells scatter sound) refraction deflection of Ultrasound waves due to media with varied acoustic impedance attenuation loss of Ultrasound signal due to absorption in tissues as it travels ...

ARDMS SPI Exam |Complete Questions with Correct Answers Graded A+ When the direction of the wave propagation is parallel to the particle motion of the medium, the wave being transmitted is called a: A) surface wave. B) longitudinal wave. C) transverse wave. D) non-linear sound. B) longitudinal wave If the sound beam attenuated 6 dB, what will happen to the overall intensity? A) Quadrupled B) Doubled C) Halved D) Quartered D) Quartered Frequency increased from 3 MHz to 6 MHz,...

Test Bank For Varcarolis' Foundations of Psychiatric-Mental Health Nursing 9th Edition By Margaret Jordan Halter (COMPLETE CHAPTER 1-36 LATEST UPDATE) ...

Spatial Pulse Length is directly proportional to - ️️the Number of Cycles in the Pulse and the Wavelength (Directly Proportional means that increased SPL will increase both the number of cycles in the pulse and the wavelength if increased). Spatial pulse length is inversely proportional to - ️️Frequency (MHz) (Inversely Proportional means that increased SPL will lower frequency. This is because axial resolution is better with lower frequency) In soft tissue, if the frequency of ...

ARDMS SPI REAL EXAM WITH CORRECT ANSWERS LATEST UPDATES Spectral broadening suggest: a. laminar flow b. turbulent flow c. flow away from the transducer d. flow towards the transducer Correct Answer: b. turbulent flow With pulse wave Doppler axial resolution: Correct Answer: degrades

SPI Practice Test Graded A+ Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution ️d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing ️d. Damping in a transducer a. reduces the number of cycles in a pulse and increases the quality factor b. increases the number of cycles in a pulse and increases penetration c. causes...

CaMrT study set Questions and Answers 100% Pass Small pneumothorax: what additional image to the routine pictures? - Answer-PA inspiration, PA expiration, Lateral (or lateral decub with affected lung UP) AEC not recommeneded - for expiration should be increased by 1/3 of that used for inspiration images Pneumothorax picture in PA inspo: what additional image to the routine pictures? - Answer-PA Expiration.... or lateral decub with affected lung up (air rising to the highest point in the ...

Sound waves are: - longitudinal, mechanical The speed of sound in soft tissue is closest to: - 1,500 m/s The frequency closest to the lower limit of ultrasound is: - 15,000 Hz Which is not an acoustic variable? - intensity The effects of soft tissue on ultrasound are called: - acoustic propagation properties All of the following are true EXCEPT: - two waves with identical frequencies must interfere constructively Put in decreasing order: deci, deca, micro, centi - deca, deci, c...

When the direction of the wave propagation is parallel to the particle motion of the medium, the wave being transmitted is called a: A) surface wave. B) longitudinal wave. C) transverse wave. D) non-linear sound. - CORRECT ANSWER B) longitudinal wave If the sound beam attenuated 6 dB, what will happen to the overall intensity? A) Quadrupled B) Doubled C) Halved D) Quartered - CORRECT ANSWER D) Quartered Frequency increased from 3 MHz to 6 MHz, what will happen to ...

"Electrical alternans" is seen on a patients EKG. The echo will most likely show? - ️️Large pericardial effusion A __________ pulse will improve axial resolution. - ️️Shorter A "b-notch" on the mitral valve in m mode is associated with ? - ️️Increased left ventricular end diastolic pressure A 22 year old patient with Down syndrome is referred to an echo lab. The most common lesion associated with these patients is ? - ️️Atrioventricular septal defect A 2D echo sho...