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- Title
Colour Doppler twinkling in kidney stones: artefact or sign?
- Authors
Andrulli, Simeone; Turrin, Alberto; Bigi, Maria Carla; Ravani, Pietro; Trinchieri, Alberto; Locatelli, Francesco
- Abstract
The twinkling in colour Doppler images is created by a rapidly changing series of coloured horizontal bars that appear beyond the reflex surfaces. Spectral analyses show a typically rectangular time/velocity wave diagram, and an uncomfortably high-pitched audio signal saturates the echo system. The twinkling can be detected in the calcified areas of various tissues and is usually interpreted as an artefact; however, this report describes two cases suggesting that it may be valuable for the early diagnosis and follow-up of kidney stones. This observation may have important diagnostic, epidemiological and clinical implications.
- Subjects
BLADDER stones; KIDNEY disease diagnosis; ULTRASONIC imaging; DOPPLER effect
- Publication
Nephrology Dialysis Transplantation, 2010, Vol 25, Issue 4, p151
- ISSN
0931-0509
- Publication type
Case Study
- DOI
10.1093/ndtplus/sfp145