Beschleunigung der kardiovaskulären MRT mittels paralleler bildgebung: Grundlagen, praktische aspekte, klinische anwendungen und perspektiven

Translated title of the contribution: Acceleration of cardiovascular MRI using parallel imaging: Basic principles, practical considerations, clinical applications and future directions

Thoralf Niendorf, D. Sodickson

    Research output: Contribution to journalReview article

    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.

    Translated title of the contributionAcceleration of cardiovascular MRI using parallel imaging: Basic principles, practical considerations, clinical applications and future directions
    Original languageGerman
    Pages (from-to)15-30
    Number of pages16
    JournalRoFo Fortschritte auf dem Gebiet der Rontgenstrahlen und der Bildgebenden Verfahren
    Volume178
    Issue number1
    DOIs
    StatePublished - Jan 1 2006

    Keywords

    • Cardiovascular MRI
    • Many element coil arrays
    • Parallel MR imaging
    • Phased array technology

    ASJC Scopus subject areas

    • Radiology Nuclear Medicine and imaging

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