Magnetresonanzmammografie (MRM): aktueller Stand

Zusammenfassung

Die Magnetresonanztomografie der Mammae (MRM) gehört neben der Mammografie und der Sonografie zu den etablierten diagnostischen Verfahren in der Brustdiagnostik. Sie ist die sensitivste und eine spezifische Methode zur Detektion von invasiven und prä-invasiven malignen Brustbefunden. Die klassischen Sequenzen an 1,5- oder 3T-Scannern sind T1- und T2-gewichtet und eine i. v. Kontrastmittelgabe ist obligatorisch. Die Einführung neuer Sequenztechniken in die MRM wie die Diffusionswichtung und die Spektroskopie erweitern die diagnostischen Möglichkeiten der MRM. Die Indikationen für die MRM beinhalten unter anderem die Früherkennungs-MRM bei Hochrisikofrauen für ein Mammakarzinom, die prä-operative MRM bei bestimmten Fragestellungen und in der Nachsorge den Rezidivausschluss.

Abstract

Magnetic resonance imaging (MRI) of the breast represents an established diagnostic tool in breast imaging besides mammography and sonography.

It is the most sensitive and a specific method to detect invasive and pre-invasive breast lesions. The classic applied sequences on 1.5 or 3T scanners are T1 and T2 weighted. I.v. contrast material application is mandatory. The introduction of new sequence techniques like diffusion weighted imaging and spectroscopy broaden the diagnostic potential of breast MRI. Indications for breast MRI include amongst others early cancer detection in high risk women, to answer particular questions pre-operatively and to exclude recurrent cancer in follow-up exams.

Schlüsselwörter

MRM (Magnetresonanzmammografie) - Mammakarzinom - Indikation - Technik - Kontrastmittel

Key words

breast MRI (magnetic resonance imaging of the breast) - breast cancer - indication - technique - contrast material

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