File:Aliasing artifact (ultrasound) (Radiopaedia 64786-73711 C 1).mp4

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Aliasing_artifact_(ultrasound)_(Radiopaedia_64786-73711_C_1).mp4 ‎(MP4 audio/video file, h.264, length 15 s, 640 × 440 pixels, 8.36 Mbps overall, file size: 14.95 MB)

Summary:

Description	Radiopaedia case ID: 64786 Image ID: 44564902 Plane projection: Longitudinal Study description: Aliasing in color Doppler Modality: Ultrasound System: Vascular Findings: The first image and shows the CCA scanned with an inappropriately low PRF (1.4 kHz) for the high velocity arterial flow. As a result flow above the upper threshold of is displayed with blue hues, during the systolic peak. The second image shows the same vessel after the PRF has been increased (5.15 kHz). The cine loop shows how aliasing gradually disappears as the PRF is adjusted (Note: the frame rate has been reduced to increase visual clarity).
Date	Published: 8th Dec 2018
Source	https://radiopaedia.org/cases/aliasing-artifact-ultrasound
Author	Balint Botz
Permission (Permission-reusing-text)	http://creativecommons.org/licenses/by-nc-sa/3.0/

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	02:22, 29 April 2021		15 s, 640 × 440 (14.95 MB)	Fæ (talk \| contribs)	Radiopaedia project rID:64786 (batch #1544-3 C1)

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