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Das Ivy Sign – Muss man das kennen?

The “Ivy sign” – Does one have to know it?

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Zusammenfassung

Eine leptomeningeale Kontrastmittelanreicherung in T1-gewichteten MRT-Sequenzen bei Kindern mit einer Moya-Moya-Erkrankung wurde erstmals 1995 beschrieben. Als strukturelles Korrelat wurde ein ausgedehntes arterielles Netzwerk kollateraler Gefäße im Bereich der Pia mater angenommen. Nach dem Bild eines auf dem Stein wachsenden Efeus benannte die Gruppe dieses Phänomen Ivy Sign. Vier Jahre später wurde der Begriff für Signalanhebungen im Bereich der Leptomeninx in FLAIR-Sequenzen im Zusammenhang mit der Moya-Moya-Erkrankung eingeführt. In den folgenden Jahren wurde umfangreich über Signalanhebungen in FLAIR-Sequenzen peripherer und zentraler Liquorräume berichtet. Unabhängig von Gefäßerkrankungen gibt es dafür weitere pathologische Ursachen, die von physiologischen Phänomenen und artifiziellen Störungen abgegrenzt werden müssen.

Abstract

In 1995 leptomeningeal contrast enhancement in T1-weighted MRI sequences were described in children with Moyamoya disease for the first time. It is assumed that a huge arterial network of collateral vessels in the pia mater is its structural correlate. This phenomenon was first called the “ivy sign” since it was reminiscent of ivy growing on stone. 4 years later the term was accepted for signal enhancement of the leptomeningeal tissue in FLAIR sequences of cases with Moyamoya disease. In the following years there were numerous reports on signal enhancement in the peripheral and central cerebrospinal fluid. Independent of vascular diseases, there are some other pathological causes that have to be distinguished from physioligacal phenomena and artifacts.

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Authors and Affiliations

  1. Klinik und Ambulanz für Kinder und Jugendliche, Epilepsiezentrum Kork, Landstraße 1, 77694, Kehl-Kork, Deutschland

    T. Dietel, M. Bacher, T. Bast & B. J. Steinhoff

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  1. T. Dietel
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  2. M. Bacher
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  3. T. Bast
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  4. B. J. Steinhoff
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Correspondence to T. Dietel.

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Interessenkonflikt

T. Dietel, M. Bacher, T. Bast und B. J. Steinhoff geben an, dass kein Interessenkonflikt besteht.

Dieser Beitrag beinhaltet keine von den Autoren durchgeführten Studien an Menschen oder Tieren.

Alle Patienten, die über Bildmaterial oder anderweitige Angaben innerhalb des Manuskripts zu identifizieren sind, haben hierzu ihre schriftliche Einwilligung gegeben.

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Dietel, T., Bacher, M., Bast, T. et al. Das Ivy Sign – Muss man das kennen?. Z. Epileptol. 29, 130–134 (2016). https://doi.org/10.1007/s10309-016-0050-9

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  • DOI: https://doi.org/10.1007/s10309-016-0050-9

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