IVUS Fundamentals and Techniques - summitMD.com

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Near Field and Far Field • The IVUS beam remains fairly parallel for a distance (Near Field) and then begins to diverge (Far Field). • Image quality is better in the Near Field than in the Far field. • The length of the near field is expressed by the equation L = r 2 / λ, , where L is the length of the near field, r is the radius (aperture) of the transducer, and λ is the wavelength.
• Spatial resolution • Contrast resolution
Page 1 and 2: IVUS Fundamentals and Techniques Ga
Page 3: There are two types of imaging syst
Page 7 and 8: Axial resolution - along the ultras
Page 9 and 10: Transducer Selection • Larger tra
Page 11 and 12: Low dynamic range High dynamic rang
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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