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Additional Description
Contributors
Preface
PART I Ultrasound Physics 1 (52)
Definition of Sound
1 (6)
Sound versus ultrasound
Propagation velocity
Frequency
Wavelength
Frequency versus depth
Frequency ranges
Propagation of Sound in Tissue
7 (8)
Sound versus ultrasound
Propagation velocity
Frequency
Wavelength
Frequency versus depth
Frequency ranges
Transducers: Ultrasound
15 (11)
Piezoelectric effect
Transducer characteristics
Sound beam characteristics
Lateral resolution
Axial resolution
Mechanical transducers
Electronic transducers
Doppler Signal Processing
26 (20)
Doppler effect
Doppler frequency shift
Effect of transmitting frequency on Doppler frequency shift
Effect of insonation angle on Doppler frequency shift
Reflector speed (velocity)
Extracting the Doppler signal
Audible Doppler signal analysis
Analog Doppler waveform generation
Spectral display characteristics
Sample volume size
Aliasing
Doppler Instruments
46 (7)
Continuous wave instruments
Pulsed wave instruments
Bidirectional Doppler
Unidirectional Doppler
Color flow
Transcranial
PART II Ultrasonic Imaging 53 (20)
Imaging Principles
53 (13)
A-mode definition
B-mode definition
Real-time definition
Gray scale display
Dynamic range
Frame rate
Scan converter
Gain
Time gain compensation
Recording techniques
Duplex instrumentation
Image resolution
Imaging Artifacts
66 (7)
Artifact definition
Origin of artifacts: technique
Origin of artifacts: instrumentation
Enhancement
Multiple reflections
Reverberation
Shadowing
Refraction
PART III Physiology & Fluid Dynamics 73 (15)
Arterial Hemodynamics
73 (10)
Energy gradient
Effects of viscosity, friction, inertia
Pressure/flow relationships
Velocity
Steady versus pulsatile flow
Effects of stenosis on flow characteristics
Venous Hemodynamics
83 (5)
Venous resistance
Hydrostatic pressure
Pressure/volume relationship
Effects of edema
Effects of muscle pump mechanism
Other
PART IV Physical Principles 88 (20)
General Considerations
88 (9)
Energy
Power
Graphical recording
Calibration
AC/DC coupling
Units of measure
Tissue Mechanics/Pressure Transmission
97 (2)
Venous occlusion by limb positioning
Superficial venous occlusion by tourniquets
Venous occlusion by cuffs
Volume changes by blood inflow/outflow
Arterial occlusion by cuffs
Plethysmography
99 (3)
Displacement (pneumatic cuff)
Photoplethysmography
Oculoplethysmography
pressure
Pressure Measurements
102 (3)
Legs
Arms
Other Considerations
105 (3)
Skin temperature
Transcutaneous oximetry
PART V Ultrasound Safety & Quality Assurance 108 (10)
Instrument Performance
108 (4)
Evaluation of image quality
Evaluation of Doppler quality
Preventive maintenance
Biological Effects
112 (6)
Minimizing exposure time
Mechanisms of production
Scientific data
Preventing electrical hazards
PART VI Answers 118
Bibliography
CME Application


