To describe a case where detection of blood flow in the central retinal artery and the central retinal vein was limited by an artifact evoked by the optic disc drusen.
Methods
Case report.
Results
During color Doppler sonography, examination of optic disc drusen may generate an artifact – the so-called twinkling artifact – which can simulate blood flow and make evaluation of the central retinal vessels impossible.
Conclusions
Twinkling artifact does not allow evaluation of color Doppler sonography in the imaging of ocular vessels.
WongA.D., CooperbergP.L., RossW.H.Differentiation of detached retina and vitreous membrane with color flow Doppler. Radiology1991; 178: 429–31.
2.
LiebW.E., MertonD.A., ShieldsJ.A., CohenS.M., MitchellD.D., GoldbergB.B.Colour Doppler imaging in demonstration of an orbital varix. Br J Ophthalmol1990; 74: 305–8.
3.
KotvalP.S., WeitznerIJr, TennerM.S.Diagnosis of carotid-cavernous fistula by periorbital color Doppler imaging and pulsed Doppler volume flow analysis. J Ultrasound Med1990; 9: 101–6.
4.
FlahartyP.M., PhilipsW., SergottR.C.Color Doppler imaging of superior ophthalmic vein thrombosis. Arch Ophthalmol1991; 109: 582–3.
5.
ChiouH.J., ChouY.U., LiuC.J.Evaluation of ocular arterial changes in glaucoma with color Doppler ultrasonography. J Ultrasound Med1999; 18: 295–302.
6.
ForoozanR., SavinoP.J., SergottR.C.Embolic central retinal artery occlusion detected by orbital color Doppler imaging. Ophthalmology2002; 109: 744–7.
7.
UstymowiczA., KrejzaJ., MariakZ.Twinkling artifact in color Doppler imaging of the orbit. J Ultrasound Med2002; 21: 559–63.
KhanH.G., GailloudP., MartinJ.B.Twinkling artifact on intracerebral color Doppler sonography. AJNR Am J Neuroradiol1999; 20: 246–7.
13.
TrillaudH., ParienteJ.L., RabieA., GrenierN.Detection of encrusted indwelling ureteral stents using a twinkling artifact revealed on color Doppler sonography. Am J Roentgenol2001; 176: 1446–8.
14.
ChelfouhN., GrenierN., HigueretD.Characterization of urinary calculi: in vitro study of “twinkling artifact” revealed by color-flow sonography. Am J Roentgenol1998; 171: 1055–60.