Clinical Low Field Strength Magnetic Reson...

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Beschreibung

This book covers all aspects of low field MRI, describing its advantages, problems and prerequisites. Individual chapters are devoted to site planning, safety considerations, coils, imaging technique, image quality optimization, the imaging of different anatomic regions and likely future developments. The factors that must be borne in mind when selecting a low field system are clearly identified and detailed attention is paid to the applications for which such a system is adequate.
The focus on high field systems has led to a situation where only a few systems with field strengths lower than 0.5 T survive. Some of these systems possess high field features such as multichannel coils and strong gradients; furthermore, sequence technology and image processing techniques taken from higher field strength systems have resulted in impressive imaging capabilities. While 1.5-T systems will probably continue to remain the standard, low field systems offer advantages such as the feasibility of dynamic joint examinations, improvement of T1 contrast, reduction of ¿missile effects¿ and decreased radiofrequency exposure. Low field strength MRI consequently has the potential to contribute to optimal patient management and given comparable image quality, its application may become an issue of patient safety. This book will be an invaluable asset to all who are involved in planning and/or running a low field strength MRI facility.

Zusammenfassung

Provides practical advice on planning and running a low field strength MRI facility

Reviews the technical advantages of low field strength systems

Contains useful tips to improve patient comfort and image quality

Inhaltsverzeichnis

Introduction.- Site planning: Room Planning.- RF Protection.- Energy Supply.- Cooling Supply.- magnet Installation.- Safety Considerations: Static Field.- Gradient Field.- RF Field.- Coils: Solenoid / Helmholtz Coils.- Send-/Receive Coils.- Phased Array Coils.- Multi-Channel Technology.- Imaging Technique: k-space.- Image resolution.- Signal-Noise Ratio / Contract-Noise Ratio.- Imaging time.- Spin Echo.- Fast Spin Echo.- Fast Gradient Echo.- Hybrid Imaging.- 3D Imaging.- Gradient Performance.- Fat saturation.- Diffusion Imaging.- Angiographic techniques.- Contrast Agents.- Image Quality Optimization: Number of excitations.- Slice Thickness.- Slice profile.- Interlacing.- Slice Orientation.- Field of view.- Matrix.- Partial Fourrier.- Interpolation.- Parallel Imaging.- Artifacts.- Postprocessing.- Clinical Imaging: Head.- Spine.- Joints.- Vascular Imaging.- Neck.- Thorax.- Abdomen.- Functional Imaging.- Cardiac Imaging.- Future Developments.

Details

Erscheinungsjahr:	2015
Fachbereich:	Andere Fachgebiete
Genre:	Medizin
Rubrik:	Wissenschaften
Medium:	Buch
Inhalt:	xv 156 S. 59 s/w Illustr. 55 farbige Illustr. 156 p. 114 illus. 55 illus. in color.
ISBN-13:	9783319165158
ISBN-10:	3319165151
Sprache:	Englisch
Herstellernummer:	978-3-319-16515-8
Ausstattung / Beilage:	HC runder Rücken kaschiert
Einband:	Gebunden
Autor:	Klein, Hans-Martin
Auflage:	1st ed. 2016
Hersteller:	Springer Nature Switzerland Springer International Publishing Springer International Publishing AG
Maße:	241 x 160 x 15 mm
Von/Mit:	Hans-Martin Klein
Erscheinungsdatum:	23.10.2015
Gewicht:	0,461 kg