Zusammenfassung
Da Standard-MRT-Untersuchungen bei Patienten mit Rückenschmerzen nur eine beschränkte Spezifität aufweisen, sind die Entwicklung und Erforschung neuer bildgebender Verfahren für die Wirbelsäule sinnvoll. Quantitative MR-Methoden haben das Potenzial, biochemische Veränderungen verschiedener Wirbelsäulenstrukturen in vivo festzustellen. Die Möglichkeiten liegen hier v. a. in der Früherkennung von Bandscheiben- und Facettengelenkveränderungen bei Patienten jungen und mittleren Alters, denen durch spezifische Therapien und präventive Maßnahmen geholfen werden kann. Mögliche Techniken stellen hier das T2- und T2*-Mapping, die diffusionsgewichtete Bildgebung, Magnetisierungstransferbildgebung, das T1ρ-Mapping, die Natriumbildgebung und MR-Spektroskopie dar. Zukünftig sind longitudinale Studien mit geeignetem Design nötig, die sowohl biochemische als auch klinische Parameter im Therapieverlauf beobachten. Die Verwendung von Hochfeldsystemen (3 Tesla) ist eine Voraussetzung für die biochemische MR-Bildgebung hoher Qualität bei klinisch akzeptabler Untersuchungszeit.
Abstract
The limited specificity of standard magnetic resonance imaging (MRI) in patients with low back pain encourages the development of new imaging techniques. Quantitative MR methods have the potential to assess biochemical changes of spinal structures in vivo. Early diagnosis of intervertebral disc and facet joint changes in young to middle aged patients allows the use of a specific therapy and preventative measures. Potential techniques are T2 and T2* mapping, diffusion-weighted imaging, magnetization transfer imaging, T1ρ mapping, sodium imaging and MR spectroscopy. Well designed longitudinal therapy studies, which assess biochemical and clinical parameters, are necessary. High-field MR systems (3 Tesla) are needed for high resolution biochemical MRI and clinically reasonable scan times.
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Stelzeneder, D., Trattnig, S. Biochemische MR-Bildgebung der Bandscheibe und Facettengelenke der Wirbelsäule. Radiologe 50, 1115–1119 (2010). https://doi.org/10.1007/s00117-010-2033-6
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DOI: https://doi.org/10.1007/s00117-010-2033-6