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  Indian J Med Microbiol
 

Figure 1: Examples of TCCD and ICA Doppler Ultrasound spectra. Comparison of the same RLS grade, assessed with the two different techniques is shown. (a): ICA Doppler ultrasound spectrum, shunt Grade 0. (b): ICA Doppler Ultrasound spectrum, shunt Grade 3. (c): TCCD spectrum, shunt Grade 0. (d): TCCD spectrum, shunt Grade 3. Shunt Grade 0: 0 MES; shunt Grade 3: Curtain effect. ICA=Internal carotid artery, MES=Microembolic signals, TCCD=Transcranial Colour Doppler

Figure 1: Examples of TCCD and ICA Doppler Ultrasound spectra. Comparison of the same RLS grade, assessed with the two different techniques is shown. (a): ICA Doppler ultrasound spectrum, shunt Grade 0. (b): ICA Doppler Ultrasound spectrum, shunt Grade 3. (c): TCCD spectrum, shunt Grade 0. (d): TCCD spectrum, shunt Grade 3. Shunt Grade 0: 0 MES; shunt Grade 3: Curtain effect. ICA=Internal carotid artery, MES=Microembolic signals, TCCD=Transcranial Colour Doppler