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URR ABDOMEN PHYSICS & CLINICAL QUESTIONS AND ANSWER | LATEST UPDATE £10.14   Add to cart

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URR ABDOMEN PHYSICS & CLINICAL QUESTIONS AND ANSWER | LATEST UPDATE

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If you have trapezoidal field of view on linear array, which resolution are you degrading? -:- lateral resolution - Trapezoidal = 台形 - wider beams = less lateral resolution If the entire image is too bright, what do you do first? -:- decrease the output power reverberation artifact d...

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  • September 17, 2024
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  • 2024/2025
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  • URR
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2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!




URR ABDOMEN PHYSICS & CLINICAL
QUESTIONS AND ANSWER | LATEST UPDATE
If you have trapezoidal field of view on linear array, which resolution are you degrading?


✓ -:- lateral resolution

✓ - Trapezoidal = 台形

✓ - wider beams = less lateral resolution




If the entire image is too bright, what do you do first?


✓ -:- decrease the output power




reverberation artifact due to gas production AKA _______ artifact


✓ -:- resonance artifact




lower frame rate = increased/degraded temporal resolution


✓ -:- degraded temporal resolution




For renal artery doppler evaluation, the angle should be _____. For intraparenchymal

arteries, the angle should be _____.




1|P a g e | G r a d e A + | 2 0 2 0 2 5

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!



✓ -:- - main RA = <60

- intraparenchymal = <20




Increasing _____ will most improve the ability to properly trace the contour of Doppler

waveform.


✓ -:- Sweep speed




A simple cyst could have artifactual debris in it in case of (x2)


✓ -:- - short distance from the transducer

- volume averaging




A contrast agent that consists of a cellulose suspension can better visualize which organ?


✓ -:- pancreatic tail




Which artifact occurs when sampling vessels adjacent to a highly reflective structure like a

bone?


✓ -:- Cross talk

- mirror image of the waveform on the other side of the baseline




2|P a g e | G r a d e A + | 2 0 2 0 2 5

, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!




What happens if you decrease the color threshold?


✓ -:- reduce the color displayed

- color threshold AKA priority


- increase threshold if you don't see enough color




Harmonic imaging increase (x3) and decrease (x3)


✓ -:- Increase

- spatial resolution


- contrast resolution


- signal to noise ratio




Decrease


- reverberation


- beam aberration


- side lobes




The number of lines of information used to create the color displayed on the image is called


3|P a g e | G r a d e A + | 2 0 2 0 2 5

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