Overview of MRI Pulse Sequences

၏ဖော်ပြချက် Overview of MRI Pulse Sequences

An MRI sequence in magnetic resonance imaging (MRI) is a particular setting of pulse sequences and pulsed field gradients, resulting in a particular image appearance.
A multiparametric MRI is a combination of two or more sequences, and/or including other specialized MRI configurations such as spectroscopy
Magnetic Resonance Imaging (MRI) is among the most important medical imaging techniques available today. There is an installed base of approximately 15,000 MRI scanners worldwide. Each of these scanners is capable of running many different "pulse sequences", which are governed by physics and engineering principles, and implemented by software programs that control the MRI hardware. To utilize an MRI scanner to the fullest extent, a conceptual understanding of its pulse sequences is crucial. Handbook of MRI Pulse Sequences offers a complete guide that can help the scientists, engineers, clinicians, and technologists in the field of MRI understand and better employ their scanner.
Explains pulse sequences, their components, and the associated image reconstruction methods commonly used in MRI
Provides self-contained sections for individual techniques
Can be used as a quick reference guide or as a resource for deeper study
Includes both non-mathematical and mathematical descriptions
Contains numerous figures, tables, references, and worked example problems.
A review of MRI pulse sequences and techniques in neuroimaging.
PART I: BACKGROUND
PART II: RADIOFREQUENCY PULSES
PART III: GRADIENTS
PART IV: DATA ACQUISITION, K-SPACE SAMPLING, AND IMAGE RECONSTRUCTION
PART V: PULSE SEQUENCES
Overview of MR imaging pulse sequences.
This app reviews general pulse-sequence properties and the pulse-sequence techniques most commonly used for clinical MR imaging. The techniques are divided into three major categories: spin echo, gradient echo, and hybrids. The description of each technique emphasizes the basic structure of the pulse sequence, the manner in which transverse magnetization is generated and encoded, and the typical forms of image contrast. In addition, specific advantages or disadvantages of each method are discussed. The techniques described include only a few of the literally thousands of MR imaging pulse sequences that have been developed over the past 20 years. As this brief survey indicates, pulse sequences have been developed that furnish a great range of image contrast behaviors, acquisition speeds, and sensitivities to artifacts. The key to choosing clinically relevant techniques is the appropriate combination of these properties. Undoubtedly, many new MR imaging pulse sequences will join the ranks of the clinically relevant techniques during the next several years.
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