7/6/25, 8:56 PM ARDMS- Sonography Principles and Instrumentation
ARDMS- Sonography Principles and
Instrumentation complete questions and answers
\verified answers
What is the Standard protocol for digital
imaging that allows for compatibility and
communication between computers, DICOM - Digital Imaging and Communication in
workstations, and network hardware provided Medicine
by various manufactures of CT, MRI and
Ultrasound equipment?
The spatial pulse length decreases with higher frequency
damping
. ... (because it INCREASES
the frequency)
Axial resolution is improved by
Think SHORT and HIGH !
Like Axl Rose from Guns n
Roses- just google him.
decreasing the beam
diameter
Lateral resolution is improved by
**Tested at point BandE
on the phantom
The beam of an unfocused transducer diverges
In the Fraunhofer zone
where?
The presence of two or more strong reflecting
Reverberation artifacts are a result of
surfaces
Recommendations for reducing the potential for
Increase receiver gain, decrease output power
bioeffects using the ALARA principal is to -
What technique can be employed to reduce Apodization, harmonics, subdicing
grating side lobes? "grate off that Ahs!" think skinny..
1/32
,7/6/25, 8:56 PM ARDMS- Sonography Principles and Instrumentation
Presence of grating lobe and side lobe artifacts
Lateral resolution
are what type of resolution issue?
A technique that uses an ensemble of pulses to
CE - Coded excitation
improve penetration and contrast resolution
Send them back for appropriate identification
If a patient is wheeled over from the ER(other measures and tagging. Trust NO ONE! Patients
dept.) without an ID band, but is a STAT for r/o Lie/have altered mental status, nurses are
DVT- rushed. Just send them back for it to be done
correctly.
Decreasing the spatial pulse length improves axial resolution
3.5 dB
How much will a 3.5 MHz pulse be attenuated
(freq / 2) x path length cm = total attenuation
after passing through 2 cm of soft tissue?
dB/cm
Which of the following is the role of the pulse?
A. voltage generation to drive the transducer
B. gain adjustment for the receiver Voltage generation to drive the transducer
C. beam focusing
D. beam steering
A long near zone can be obtained by - using a higher frequency transducer
Propagation speed errors result in improper axial position
weakly attenuating
Enhancement is caused by
structures (such as a cyst)
The doppler shift frequency is directly
the velocity of the reflector
proportional to
The number of frames per second necessary for
>15 - 30 FPS
a real-time image to be flicker free is
2/32
,7/6/25, 8:56 PM ARDMS- Sonography Principles and Instrumentation
Any patient who does not speak English clearly,
but presents for a procedure requiring a consent Use a certified language line interpreter.
form - What is the most appropriate step?
Smaller beam diameter!!
Focal zone-where the
The Intensity of the ultrasound beam is usually
glare of the beam
greater at the Focal zone because of
narrows and the Intensity
is great!
quadrupled (increased by
4 times- because they are
If the amplitude is doubled, the intensity is proportional)
Crank up the AMP! and
things get INTENSE too!
The attenuation for soft tissue is increased with tissue thickness
can be chosen to improve transmission into the
The acoustic impedance of the matching layer
body
Verify Name, DOB, and
medical record number.
What is the first step required prior to starting
Those are the 3 basic
any procedure?
required identifiers every
time.
the thickness of the
crystal.
The operating frequency depends on
Thickness = 1/2 the
wavelength
time to complete one
The period of an ultrasound wave is cycle
(Just like a lady..)
is the ratio of smallest to
The dynamic range of a system largest power level that
the system can handle
3/32
, 7/6/25, 8:56 PM ARDMS- Sonography Principles and Instrumentation
The digital imaging system that allows MRI, CT,
ultrasound and xray to store images PACS
electronically and viewed remotely-
increases the maximum
depth that can be
imaged-(decreases PRF)
Increasing the pulse repetition period *Includes increasing
listening time, thus
spaced out pulses, lower
frequency.
Ultrasound bioeffects with an unfocused beam 100 mW/cm^2 spatial peak temporal average
are not confirmed below : (SPTA)
When can an informed consent be revoked? at any time
Before and after each use.
When should ultrasound probes be disinfected? Don't be gross. Clean it
like your hands.
mathematical process
that analyzes the change
Define autocorrelation
in doppler shift over a
short time
microbubbles that
oscillate without
Stable cavitation refers to
collapsing with variations
in sound pressure
Which is the least likely to cause Bio-effects?
A. Power Output
B. Thermal Index
High Frequency Transducer
C. Exam Time
D. High-Frequency Transducer
E. Mechanical Index
4/32
ARDMS- Sonography Principles and
Instrumentation complete questions and answers
\verified answers
What is the Standard protocol for digital
imaging that allows for compatibility and
communication between computers, DICOM - Digital Imaging and Communication in
workstations, and network hardware provided Medicine
by various manufactures of CT, MRI and
Ultrasound equipment?
The spatial pulse length decreases with higher frequency
damping
. ... (because it INCREASES
the frequency)
Axial resolution is improved by
Think SHORT and HIGH !
Like Axl Rose from Guns n
Roses- just google him.
decreasing the beam
diameter
Lateral resolution is improved by
**Tested at point BandE
on the phantom
The beam of an unfocused transducer diverges
In the Fraunhofer zone
where?
The presence of two or more strong reflecting
Reverberation artifacts are a result of
surfaces
Recommendations for reducing the potential for
Increase receiver gain, decrease output power
bioeffects using the ALARA principal is to -
What technique can be employed to reduce Apodization, harmonics, subdicing
grating side lobes? "grate off that Ahs!" think skinny..
1/32
,7/6/25, 8:56 PM ARDMS- Sonography Principles and Instrumentation
Presence of grating lobe and side lobe artifacts
Lateral resolution
are what type of resolution issue?
A technique that uses an ensemble of pulses to
CE - Coded excitation
improve penetration and contrast resolution
Send them back for appropriate identification
If a patient is wheeled over from the ER(other measures and tagging. Trust NO ONE! Patients
dept.) without an ID band, but is a STAT for r/o Lie/have altered mental status, nurses are
DVT- rushed. Just send them back for it to be done
correctly.
Decreasing the spatial pulse length improves axial resolution
3.5 dB
How much will a 3.5 MHz pulse be attenuated
(freq / 2) x path length cm = total attenuation
after passing through 2 cm of soft tissue?
dB/cm
Which of the following is the role of the pulse?
A. voltage generation to drive the transducer
B. gain adjustment for the receiver Voltage generation to drive the transducer
C. beam focusing
D. beam steering
A long near zone can be obtained by - using a higher frequency transducer
Propagation speed errors result in improper axial position
weakly attenuating
Enhancement is caused by
structures (such as a cyst)
The doppler shift frequency is directly
the velocity of the reflector
proportional to
The number of frames per second necessary for
>15 - 30 FPS
a real-time image to be flicker free is
2/32
,7/6/25, 8:56 PM ARDMS- Sonography Principles and Instrumentation
Any patient who does not speak English clearly,
but presents for a procedure requiring a consent Use a certified language line interpreter.
form - What is the most appropriate step?
Smaller beam diameter!!
Focal zone-where the
The Intensity of the ultrasound beam is usually
glare of the beam
greater at the Focal zone because of
narrows and the Intensity
is great!
quadrupled (increased by
4 times- because they are
If the amplitude is doubled, the intensity is proportional)
Crank up the AMP! and
things get INTENSE too!
The attenuation for soft tissue is increased with tissue thickness
can be chosen to improve transmission into the
The acoustic impedance of the matching layer
body
Verify Name, DOB, and
medical record number.
What is the first step required prior to starting
Those are the 3 basic
any procedure?
required identifiers every
time.
the thickness of the
crystal.
The operating frequency depends on
Thickness = 1/2 the
wavelength
time to complete one
The period of an ultrasound wave is cycle
(Just like a lady..)
is the ratio of smallest to
The dynamic range of a system largest power level that
the system can handle
3/32
, 7/6/25, 8:56 PM ARDMS- Sonography Principles and Instrumentation
The digital imaging system that allows MRI, CT,
ultrasound and xray to store images PACS
electronically and viewed remotely-
increases the maximum
depth that can be
imaged-(decreases PRF)
Increasing the pulse repetition period *Includes increasing
listening time, thus
spaced out pulses, lower
frequency.
Ultrasound bioeffects with an unfocused beam 100 mW/cm^2 spatial peak temporal average
are not confirmed below : (SPTA)
When can an informed consent be revoked? at any time
Before and after each use.
When should ultrasound probes be disinfected? Don't be gross. Clean it
like your hands.
mathematical process
that analyzes the change
Define autocorrelation
in doppler shift over a
short time
microbubbles that
oscillate without
Stable cavitation refers to
collapsing with variations
in sound pressure
Which is the least likely to cause Bio-effects?
A. Power Output
B. Thermal Index
High Frequency Transducer
C. Exam Time
D. High-Frequency Transducer
E. Mechanical Index
4/32
