Sonography Canada Core Review Exam
2026 Questions and Answers
f - Correct answer-v/wavelength
frequency - Correct answer-number of cycles per second
T - Correct answer-1/f
Period - Correct answer-length of time for one cycle
1540 m/s - Correct answer-speed of sound in soft tissue
infrasound - Correct answer-<20Hz
audible sound - Correct answer-20Hz-20,000Hz
ultrasound - Correct answer->20,000Hz
c - Correct answer-= root (bulk modulus/density)
or
=stiffness/density
bulk modulus - Correct answer-stress/strain
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,I - Correct answer-= P/a
P - Correct answer-= E/T
Amplitude - Correct answer-maximum deviation from normal
A - Correct answer-= max-normal
A^2 - Correct answer-proportional to intensity and power
PRP - Correct answer-= 1/PRF
line time - Correct answer-(PRP) time for one scan line
PRF - Correct answer-number pulses per sec
PRP/ PRF factors - Correct answer-depth
speed of sound
PD - Correct answer-=T x # cycles per pulse
DF - Correct answer-= PD/PRP
SPL - Correct answer-= wavelength x #cycles in one pulse
Ax Res - Correct answer-= SPL/2
Range Eqn - Correct answer-d=0.77t
Attenuation (eqn) - Correct answer-=0.5fL
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, Attenuation coefficient - Correct answer-0.5dB/cm soft tissue
Z - Correct answer-=cp
% reflection - Correct answer-=[z2-z1/z2+z1]^2
bit depth - Correct answer-=2^n
IRC - Correct answer-= reflected intensity/incident intensity
NZL - Correct answer-= (crystal diam^2 x f)/ 6
Young's Modulus - Correct answer-=3pc^2
or
= stress/strain
methods with highest thermal risk/ lowest mech risk - Correct answer-CW and PW
spectral
Methods with lowest thermal risk/ highest mech risk - Correct answer-B mode
Isppa - Correct answer-mech risk
highest Isppa - Correct answer-190W/cm^2
Ispta - Correct answer-thermal risk
highest Ispta - Correct answer-720mW/cm^2
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2026 Questions and Answers
f - Correct answer-v/wavelength
frequency - Correct answer-number of cycles per second
T - Correct answer-1/f
Period - Correct answer-length of time for one cycle
1540 m/s - Correct answer-speed of sound in soft tissue
infrasound - Correct answer-<20Hz
audible sound - Correct answer-20Hz-20,000Hz
ultrasound - Correct answer->20,000Hz
c - Correct answer-= root (bulk modulus/density)
or
=stiffness/density
bulk modulus - Correct answer-stress/strain
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,I - Correct answer-= P/a
P - Correct answer-= E/T
Amplitude - Correct answer-maximum deviation from normal
A - Correct answer-= max-normal
A^2 - Correct answer-proportional to intensity and power
PRP - Correct answer-= 1/PRF
line time - Correct answer-(PRP) time for one scan line
PRF - Correct answer-number pulses per sec
PRP/ PRF factors - Correct answer-depth
speed of sound
PD - Correct answer-=T x # cycles per pulse
DF - Correct answer-= PD/PRP
SPL - Correct answer-= wavelength x #cycles in one pulse
Ax Res - Correct answer-= SPL/2
Range Eqn - Correct answer-d=0.77t
Attenuation (eqn) - Correct answer-=0.5fL
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, Attenuation coefficient - Correct answer-0.5dB/cm soft tissue
Z - Correct answer-=cp
% reflection - Correct answer-=[z2-z1/z2+z1]^2
bit depth - Correct answer-=2^n
IRC - Correct answer-= reflected intensity/incident intensity
NZL - Correct answer-= (crystal diam^2 x f)/ 6
Young's Modulus - Correct answer-=3pc^2
or
= stress/strain
methods with highest thermal risk/ lowest mech risk - Correct answer-CW and PW
spectral
Methods with lowest thermal risk/ highest mech risk - Correct answer-B mode
Isppa - Correct answer-mech risk
highest Isppa - Correct answer-190W/cm^2
Ispta - Correct answer-thermal risk
highest Ispta - Correct answer-720mW/cm^2
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
