Doppler and Summary Slide 1 of 4Slide 2 of 4Slide 3 of 4Slide 4 of 4 Doppler Artifacts “Twinkling” Can improve detection of kidney stones Continue Doppler Artifacts ‘Aliasing’ When speed is so fast it “wraps” Sudden shift – from blue to yellow Affected by scale – here >59 cm/s Continue Other Artifacts Lateral resolution (beam width) Elevational resolution (section thickness) Axial resolution Multipath Others … be aware that things are not always as they appear! Continue Artifacts Summarize: Beware artifacts… …use artifacts! Continue Artifacts in Ultrasound --- Table of Contents --- Lesson NameMinutes id Intro and Shadowing1 241 Edges and Mirrors1 242 Sidelobe1 243 Reverb Comets and Rings1 244 Doppler and Summary1 245