MRI Physics for Radiologists: A Visual Approach

Description

MRI Physics for Radiologsits: A Visual Approach, Third Edition delineates the principles of magnetic resonance imaging in a format that can be understood by readers who do not have a sophisticated physics or mathematics background. It is organized in three sections: sections one and two present the contrast and spatial characteristics of the image; section three deals with topics such as Half Fourier imaging, motion, aliasing, artifacts, and coils. The third edition has sections on new techniques now in common use, such as rectangular field of view and fast spin-echo (or echo-planar) sequences, a chapter on the effect of MR equipment parameters on image resolution, a chapter with a simplified mathematical discussion of the Fourier transform and an enhanced section on magnetic resonance angiography. Front Matter....Pages i-xii Front Matter....Pages 1-1 Overview....Pages 3-5 Magnetic Field....Pages 7-15 Radiofrequency Pulse....Pages 17-28 Relaxation....Pages 29-31 Pulse Cycles, Pulse Sequences,and Tissue Contrast....Pages 33-37 T2 and the Spin-Echo Pulse Cycle....Pages 39-49 Front Matter....Pages 51-51 Gradients....Pages 53-55 The Slice Select Gradient....Pages 57-59 Frequency Gradient....Pages 61-64 The Fourier Transform....Pages 65-69 The Phase Encoding Gradient....Pages 71-81 Inside the “Black Box”: From Signal to Image....Pages 83-93 Wrapping Up Basic Concepts....Pages 95-100 Front Matter....Pages 101-101 Some Other Pulse Cycles and Procedures....Pages 103-115 Matrix Size and the Field of View....Pages 117-124 Motion....Pages 125-144 Magnetic Resonance Angiography (MRA)....Pages 145-153 Aliasing....Pages 155-160 Fat and Water....Pages 161-170 Coils....Pages 171-173 Front Matter....Pages 101-101 User Parameter Summary....Pages 175-176 Back Matter....Pages 177-180