Zusammenfassung
Die diffusionsgewichtete (DW-)MRT ermöglicht die Erfassung qualitativer und quantitativer Informationen bzgl. der Gewebezellularität und Membranintegrität. Die DW-MRT ist insbesondere bei Patienten mit einer Allergie gegen gadoliniumhaltige Kontrastmittel oder eingeschränkter Nierenfunktion attraktiv, da ihr Einsatz nicht mit Strahlenexposition oder Kontrastmittelgabe verbunden ist. Durch technische Weiterentwicklungen ist die robuste Anwendung der DW-MRI in der Bildgebung des Abdomens seit einiger Zeit möglich geworden. In der Leberdiagnostik lassen sich Zusatzinformationen zur Detektion und Charakterisierung von Leberläsionen gewinnen, aber auch Therapieerfolge dokumentieren und frühe chronische Leberveränderungen visualisieren. Neben ihrer Rolle bei hepatologischen und onkologischen Fragestellungen erscheint der Einsatz der DW-MRT zudem bei entzündlichen Fragestellungen wie dem Morbus Crohn sehr viel versprechend.
Abstract
Diffusion-weighted magnetic resonance imaging (DW-MRI) provides qualitative and quantitative information of tissue cellularity and the integrity of cellular membranes. Since DW-MRI can be performed without ionizing radiation exposure and contrast media application, DW-MRI is a particularly attractive tool for patients with allergies for gadolinium-based contrast agents or renal failure. Recent technical developments have made DW-MRI a robust and feasible technique for abdominal imaging. DW-MRI provides information on the detection and characterization of focal liver lesions and can also visualize treatment effects and early changes in chronic liver disease. In addition DW-MRI is a promising tool for the detection of inflammatory changes in patients with Crohn’s disease.
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Schmid-Tannwald, C., Reiser, M. & Zech, C. Diffusionsgewichtete Magnetresonanztomographie des Abdomens. Radiologe 51, 195–204 (2011). https://doi.org/10.1007/s00117-010-2060-3
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DOI: https://doi.org/10.1007/s00117-010-2060-3