While using a linear sequential array transducer during a color Doppler exam,
the shape of the grayscale image is most often _______, Whereas the shape of
the color Doppler portion of the image is _______.
A. rectangular, parallelogram
B. rectangular, sector
C. sector, trapezoid
D. square, ...
Understanding Ultrasound Physics -
SPI Exam Review - ARTIFACTS
Questions and Answers (100% Pass)
While using a linear sequential array transducer during a color Doppler exam,
the shape of the grayscale image is most often _______, Whereas the shape of
the color Doppler portion of the image is _______.
A. rectangular, parallelogram
B. rectangular, sector
C. sector, trapezoid
D. square, rectangular
✓ A. rectangular, parallelogram
✓
✓ The shape of a grayscale image using a linear sequential array is
rectangular. However, the sound beams used for Doppler are steered
at an angle, creating a parallelogram shaped region.
What is the meaning of the term "analysis" in the context of spectral analysis
✓ Autocorrelation is a technique of choice for spectral analysis of color
Doppler. Although the most accurate technique is the FFT,
autocorrelation is better suited to process the enormous amount of
data acquired in a color Doppler study.
Acoustic artifacts include: (more than one answer may be correct.)
A. images of reflectors in an inappropriate position
B. Images of reflectors with improper shape
C. images of reflectors with incorrect brightness
D. images that do not correspond to anatomical structures
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