ARDMS Breast Registry Study Guide Exam And Verified Answers 100% 2024.
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ARDMS SPI
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ARDMS SPI
Artifact - Answer An echo feature present or absent in a sonographic image that does not correspond to the presence or absence of a real structure. Eg. enhancement or shadowing.
Attenuation - Answer The reduction of intensity (and amplitude) of a sound wave as it travels through a material. ...
ARDMS Breast Registry Study Guide Exam And Verified Answers 100% 2024.
Artifact - Answer An echo feature present or absent in a sonographic image that does not correspond to
the presence or absence of a real structure. Eg. enhancement or shadowing.
Attenuation - Answer The reduction of intensity (and amplitude) of a sound wave as it travels through a material. Attenuation is due to absorption, reflection, and scattering.
Complex - Answer A structure in the body that contains both cystic and solid components.
Echogenic - Answer A structure or medium that produces echoes.
Edge Shadowing - Answer Decreased echo amplitude distal to the edge of a structure. This artifact results from refraction of the sound beam.
Enhancement - Answer Increased echo amplitude returning from regions lying beyond an object that causes little or no attenuation of the sound beam (typically a cystic structure). This artifact results in a brighter than normal appearance.
Heterogeneous - Answer A structure that has an uneven texture (hypoechoic and hyperechoic echoes throughout). Synonym - non-uniform.
Homogeneous - Answer Smooth uniform texture
Ipsilateral - Answer On the same side.
Contrlateral - Answer On the opposite side. Isoechoic - Answer Same echogenicity as another structure or the surrounding tissue.
Noise - Answer Spurious echoes throughout the image.
Real-time - Answer The scanning and display of sonographic images at a sufficiently rapid rate so that moving structures can be seen to move at their natural rate. ***Frame rates of 15 frames per second or greater are considered real time***
Reverberation - Answer Artifact causing linear echoes parallel to a strong interface. Sound "bounces"
Ring Down - Answer Reverb in which numerous parallel echoes are seen for a considerable distance. E.g. a biopsy needle.
Sensitivity - Answer The ability to diagnose disease in a patient when disease is present.
Texture - Answer The pattern of echoes seen from a mass or area of interest in the body.
Refractive Edge Shadowing - Answer Bending of a sound beam and loss of sound energy causing a shadow.
Mid level gray corresponds to _____ in the breast. - Answer Fat
Hyperechoic describes what three structures visualized in breast sonography. - Answer Fibroglandular tissue, Cooper's Ligament, Skin
What frequency transducer is optimal for breast imaging? - Answer 7.0-15.0 MHz is optimal for superior
axial and lateral resolution while maintaining penetration to the chest wall. It should also be BROADBAND.
Fixed elevation focusing represents.... - Answer Focusing along the short axis of the transducer. What design of transducer is used in breast imaging? - Answer Linear array is optimal
The advantage of a rectangular image over a sector image is the avoidance of what artifact? - Answer Beam divergence
Interventional procedures are more accurately guided with a _______ __________ probe. - Answer Linear array
When is a curved array transducer used in breast imaging? - Answer Pathology too large to fit on linear image
Most linear transducers in breast sonography are ______ arrays. - Answer 1-D
1-D arrays offer a fixed focus in the ________ plan (short axis) - Answer Elevation
1.5-D matrix array transducers have multiple elements along the _____ axis of the probe. - Answer Short
1.5-D arrays offer some electronic focusing in the __________ plane. - Answer Elevation
2-D array transducers are not currently _________. - Answer available
Imaging depth should penetrate the chest wall-- ___ to ___ cm should be adequate - Answer 3, 6
An echo's brightness is controlled by ______ - Answer gain
Know overall gain, TGC, and output power - Answer This is ultrasound elementary.
If your image is too bright decrease the ______________. - Answer Output power If your image is too dark increase the ____________. - Answer Receiver gain
__________ focal zones are recommended for breast imaging. - Answer Multiple
Multiple focal zones will decrease what? - Answer Frame rate
a 7-12 MHz probe must be used to obtain an elevation focus depth of ____ to _____ cm. - Answer 1,2
10 MHz = _____ cm elevation plane focus - Answer 1.5
____________ (artifact) decreases contrast resolution and spatial resoution (both axial and lateral). Places unwanted echoes in cysts. - Answer Volume averaging
_______ __________ is more sensitive to low velocity flow and offers angle independence. - Answer Power Doppler
Three reasons Doppler is useful: - Answer (1)Solid vs Cystic
(2)Inflammed vs Non-Inflammed
(3)Complicated Cyst vs Complex Cyst vs Intraductal Papilloma
To optimize Doppler for breast imaging (4 things) - Answer (1) Low velocity scale
(2) Low filter setting
(3) Optimal Doppler gain setting
(4) Increased PRF for high velocities
Uses compounding technique to combine ultrsound lines acquired from different scanning directions (angles). Improves tissue differentiation, margin visualization, and internal architecture creating a "smoother" more realistic image. - Answer Spatial compounding
What are the advantages (2) and disadvantages (2) of spatial compounding? - Answer Advantages:
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