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Acta Medica Medianae
Vol. 50, No 2, June, 2011

UDK 61
ISSN 0365-4478(Printed version)
ISSN 1821-2794(Online)

 

Correspondence to:

Jelena Stefanović

Faculty of Medicine Niš

Bulevar dr Zorana Đinđića 81 18000 Niš, Serbia

E-mail: jstefa9@yahoo.com

Original article                                             

UDC: 616-073.7:616.831-006

doi:10.5633/amm.2011.0204

 

  

MAGNETIC RESONANCE PRESENTATION OF INTRACRANIAL MENINGIOMAS

 

Jelena Stefanović1, Dragan Stojanov2, Petar Bošnjaković2, Slađana Petrović2, Daniela Benedeto-Stojanov3 and  Nebojša Ignjatović4

 

Faculty of Medicine, University of Niš, Serbia1

Institut of Radiology, Clinical Center Niš, Serbia2

Clinic of Gastroenterology, Clinical Center Niš, Serbia3

Clinic of General Surgery, Clinical Center Niš, Serbia4

 

Magnetic resonance (MR) has become the most important imaging method in the diagnosis of intracranial meningeomas.

The aim of this study was to present the characteristics of meningiomas.

Thirty patients with histologically proven intracranial meningiomas were studied. There were 20 female and 10 male patients (median=5315 years). All MR examinations were performed on the MR apparatus, the strength of which is 1.5T. All patients were scanned with T1, T2-weighted imaging (T1WI, T2WI), FLAIR and contrast-enhanced T1WI.

Most of the tumors showed on T1WI the isointense signal (80%) and hypointense signals (20%). On T2WI, most of tumors showed isointense signal (80%) and hyperintense signal (20%). On FLAIR, the majority of tumors showed isointense signal (80%) and hyperintense signal (20%). After contrast administration, significantly intensive sign in contrast-enhanced T1WI was observed in 90% of the tumors, while 10% showed moderate enhancement. Supratentorial lesions were found in 83,34% of cases and infratentorial lesion were demonstrated in 16,66% of cases.

MRI characteristics of intracranial meningiomas are various. Intracranial meningiomas usually show isointense and hypointense signals on T1WI; isointense and hyperintense ones on T2WI; isointense and hyperintense ones on FLAIR images, with intense enhancement after contrast administration. The most common is supratentorial localisation. Acta Medica Medianae 2011;50(2):24-28.

 

Key words: MR, meningioma