Biomedical Engineering Reference
In-Depth Information
CHAPTER
16
Medical Imaging
Thomas Szabo, PhD*
OUTLINE
16.1 Introduction
1040
16.7 Image Fusion
1106
16.2 Diagnostic Ultrasound Imaging 1042
16.8 Summary
1107
16.3 Magnetic Resonance Imaging
1071
16.9 Exercises
1108
16.4 Magnetoencephalography
1099
References
1110
16.5 Contrast Agents
1101
Suggested Readings
1110
16.6 Comparison of Imaging Modes 1103
AT THE CONCLUSION OF THIS CHAPTER, STUDENTS WILL BE
ABLE TO:
Distinguish between the principles of pulse-
echo ranging and ultrasound imaging.
Describe how ultrasound images are formed.
Explain the fundamentals of acoustic wave
propagation, reflection, and refraction.
Describe the operation and characteristics of
a piezoelectric transducer.
Explain the principle of an acoustic
matching layer.
Discuss the basic types of acoustic
scattering.
Calculate the effects of acoustic absorption.
Describe the fundamentals of beam formation
and focusing.
Discuss the block diagram of an ultrasound
imaging system.
Explain basic ultrasound Doppler.
Explain four basic principles of the interaction
of magnetic fields and charges.
Discuss spin states and precession of nuclear
dipoles in a magnetic field.
*
With contributions from Kirk K. Shung and Steven Wright.
