Ultrasound
Ultrasound In ultrasound imaging, a short burst of mechanical energy created by a transducer is introduced into the body through contact with the skin. The resulting ultrasound pulse travels at…
Computed Tomography
Computed Tomography Computed tomography (CT) has experienced enormous growth in clinical use over the past three decades (Fig. 10-1) primarily due to significant advances in image quality and a dramatic…
Magnetic Resonance Basics: Magnetic Fields, Nuclear Magnetic Characteristics, Tissue Contrast, Image Acquisition
Magnetic Resonance Basics: Magnetic Fields, Nuclear Magnetic Characteristics, Tissue Contrast, Image Acquisition Nuclear magnetic resonance (NMR) is the spectroscopic study of the magnetic properties of the nucleus of the atom….
Radiation Detection and Measurement
Radiation Detection and Measurement The detection and measurement of ionizing radiation are the basis for the majority of diagnostic imaging. In this chapter, the basic concepts of radiation detection and…
Magnetic Resonance Imaging: Advanced Image Acquisition Methods, Artifacts, Spectroscopy, Quality Control, Siting, Bioeffects, and Safety
Magnetic Resonance Imaging: Advanced Image Acquisition Methods, Artifacts, Spectroscopy, Quality Control, Siting, Bioeffects, and Safety The essence of magnetic resonance imaging (MRI) in medicine is the acquisition, manipulation, display, and…
Nuclear Tomographic Imaging—Single Photon and Positron Emission Tomography (SPECT and PET)
Nuclear Tomographic Imaging—Single Photon and Positron Emission Tomography (SPECT and PET) The formation of projection images in nuclear medicine was discussed in the previous chapter. A nuclear medicine projection image…
Radiation Protection
Radiation Protection It is incumbent upon all individuals who use radiation in medicine to strive for an optimal compromise between its clinical utility and the risk from radiation doses to…
Radiation Biology
Radiation Biology 20.1 OVERVIEW Rarely have beneficial applications and hazards to human health followed a major scientific discovery more rapidly than with the discovery of ionizing radiation. Soon after Roentgen’s…
Radionuclide Production, Radiopharmaceuticals, and Internal Dosimetry
Radionuclide Production, Radiopharmaceuticals, and Internal Dosimetry 16.1 RADIONUCLIDE PRODUCTION Although many naturally occurring radioactive nuclides exist, all of those commonly administered to patients in nuclear medicine are artificially produced. Artificial…
Nuclear Imaging—The Gamma Camera
Nuclear Imaging—The Gamma Camera Nuclear imaging produces images of the distributions of radionuclides in patients. Because charged particles from radioactivity in a patient are almost entirely absorbed within the patient,…
