IVUS Fundamentals and Techniques - summitMD.com

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Contrast Resolution • Contrast resolution = dynamic range = the number of shades of grey that can be differentiated between the weakest and the strongest targets. • The greater the dynamic range, the broader the range of reflected signals (from weakest to strongest) that can be detected, displayed, and differentiated • Low dynamic range images appear “black and white” with only a few “in between” gray-scale levels – in other words, they appear “contrasty” • High dynamic range images have more shades of grey and can differentiate more different tissue types and more structural elements.
Low dynamic range High dynamic range
Page 1 and 2: IVUS Fundamentals and Techniques Ga
Page 3 and 4: There are two types of imaging syst
Page 5 and 6: • Spatial resolution • Contrast
Page 7 and 8: Axial resolution - along the ultras
Page 9: Transducer Selection • Larger tra
Page 13 and 14: Controls • Other than the overall
Page 15 and 16: Only a small percentage of the emit
Page 17: • Intimal disease (plaque) is den
Page 20 and 21: Spatial Orientation • There is no
Page 22 and 23: Safety • Hausmann et al., Circula
Page 24 and 25: Essentials of an IVUS Program • D
Page 26 and 27: Dedicated Technicians*, Nurses, and
Page 28 and 29: Imaging Procedure - II • Standard
Page 30 and 31: Manual Pullback • Advantages •
Page 32 and 33: Basic Report • Patient demographi
Page 34: Reference Mintz GS, Nissen SE, et a

IVUS Fundamentals and Techniques - summitMD.com

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