Etiology of the color Doppler ultrasound twinkling artifact on in situ human kidney stones

2017 ◽  
Vol 142 (4) ◽  
pp. 2696-2696
Author(s):  
Julianna C. Simon ◽  
Barbrina Dunmire ◽  
Bryan Cunitz ◽  
Oleg A. Sapozhnikov ◽  
Jeffrey Thiel ◽  
...  
Keyword(s):  
Doppler Ultrasound ◽  
Kidney Stones ◽  
Color Doppler ◽  
Human Kidney ◽  
Color Doppler Ultrasound ◽  
Twinkling Artifact

Color-Doppler ultrasound imaging of in situ human kidney stones in a hyperbaric chamber

2016 ◽  
Vol 140 (4) ◽  
pp. 2983-2984
Author(s):  
Julianna C. Simon ◽  
Barbrina Dunmire ◽  
Bryan W. Cunitz ◽  
Oleg A. Sapozhnikov ◽  
Jeffrey Thiel ◽  
...  
Keyword(s):  
Doppler Ultrasound ◽  
Ultrasound Imaging ◽  
Kidney Stones ◽  
Color Doppler ◽  
Human Kidney ◽  
Color Doppler Ultrasound ◽  
Hyperbaric Chamber ◽  
Doppler Ultrasound Imaging

scholarly journals Twinkle, twinkle little stone: an artifact improves the ultrasound performance!

2017 ◽  
Vol 19 (3) ◽  
pp. 272 ◽  
Author(s):  
Mirela Liana Gliga ◽  
Cristian Nicolae Chirila ◽  
Daniela Maria Podeanu ◽  
Torok Imola ◽  
Sanda Lucia Voicu ◽  
...  
Keyword(s):  
Doppler Ultrasound ◽  
Kidney Stones ◽  
Predictive Value ◽  
Color Doppler ◽  
Renal Stones ◽  
Intravenous Urography ◽  
Color Doppler Ultrasound ◽  
Urinary Stones ◽  
Lumbar Pain ◽  
Twinkling Artifact

Aims: Ultrasound is a noninvasive method used for the diagnosis of urinary lithiasis. When the length of the stone is less than 5 mm, its detection may be difficult. The twinkling artifact (TwA) is an intense alternating color signal behind calcifications and stones in different organs. The aim of this paper was to evaluate the importance of the TwA in detecting kidney stones less than 5 mm in length. Material and methods: We examined 230 patients with lumbar pain or a history of kidney stones. We excluded patients with stones larger than 5 mm. 174 patients corresponded to the inclusion criteria. We performed color Doppler ultrasound and we noticed the presence of the twinkling artifact. The gold standard for the diagnosis was either computed tomography (CT) scan, intravenous urography (IVU) or the spontaneous elimination of the stones.Results: We found renal stones in 123 patients. The twinkling artifact was present in 113 cases and absent in the rest of 10 patients. In two patients the artifact was present but the stones were not confirmed by CT. The twinkling artifact had sensitivity, specificity, positive predictive value and negative predictive value of 99.12%, 90.91%, 99.12%, and 90.91% respectively.Conclusions: The twinkling artifact is a very useful color Doppler ultrasound tool for the detection of small urinary stones. We suggest the routine use of color Doppler in all suspicious cases in order to avoid unnecessary irradiating and expensive radiological methods.

scholarly journals MP10-12 THE COLOR DOPPLER ULTRASOUND TWINKLING ARTIFACT AND MICROBUBBLES ON KIDNEY STONES IN HUMANS

2020 ◽  
Vol 203 ◽  
pp. e130
Author(s):  
Julianna Simon* ◽  
James Holm ◽  
Jeffrey Thiel ◽  
Barbrina Dunmire ◽  
Bryan Cunitz ◽  
...  
Keyword(s):  
Doppler Ultrasound ◽  
Kidney Stones ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Twinkling Artifact

The effect of ambient pressure on the color Doppler ultrasound twinkling artifact

2015 ◽  
Vol 138 (3) ◽  
pp. 1746-1746
Author(s):  
Julianna C. Simon ◽  
Bryan W. Cunitz ◽  
Oleg A. Sapozhnikov ◽  
Wayne Kreider ◽  
Jeffrey Thiel ◽  
...  
Keyword(s):  
Doppler Ultrasound ◽  
Ambient Pressure ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Twinkling Artifact
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