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Beschleunigung der kardiovaskulaeren MRT mittels paralleler Bildgebung: Grundlagen, praktische Aspekte, klinische Anwendungen und Perspektiven [Acceleration of cardiovascular MRI using parallel imaging: basic principles, practical considerations, clinical applications and future directions]

Item Type:Review
Title:Beschleunigung der kardiovaskulaeren MRT mittels paralleler Bildgebung: Grundlagen, praktische Aspekte, klinische Anwendungen und Perspektiven [Acceleration of cardiovascular MRI using parallel imaging: basic principles, practical considerations, clinical applications and future directions]
Creators Name:Niendorf, T. and Sodickson, D.
Abstract:Cardiovascular Magnetic Resonance (CVMR) imaging has proven to be of clinical value for non-invasive diagnostic imaging of cardiovascular diseases. CVMR requires rapid imaging; however, the speed of conventional MRI is fundamentally limited due to its sequential approach to image acquisition, in which data points are collected one after the other in the presence of sequentially-applied magnetic field gradients and radiofrequency pulses. Parallel MRI uses arrays of radiofrequency coils to acquire multiple data points simultaneously, and thereby to increase imaging speed and efficiency beyond the limits of purely gradient-based approaches. The resulting improvements in imaging speed can be used in various ways, including shortening long examinations, improving spatial resolution and anatomic coverage, improving temporal resolution, enhancing image quality, overcoming physiological constraints, detecting and correcting for physiologic motion, and streamlining work flow. Examples of these strategies will be provided in this review, after some of the fundamentals of parallel imaging methods now in use for cardiovascular MRI are outlined. The emphasis will rest upon basic principles and clinical state-of-the art cardiovascular MRI applications. In addition, practical aspects such as signal-to-noise ratio considerations, tailored parallel imaging protocols and potential artifacts will be discussed, and current trends and future directions will be explored.
Keywords:Cardiovascular MRI, Parallel MR Imaging, Phased Array Technology, Many Element Coil Arrays
Source:RoeFo Fortschritte auf dem Gebiete der Roentgenstrahlen und der neuen bildgebenden Verfahren
ISSN:1438-9029
Publisher:Thieme (Germany)
Volume:178
Number:1
Page Range:15-30
Date:January 2006
Official Publication:https://doi.org/10.1055/s-2005-858686
PubMed:View item in PubMed

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