Gadolinium-enhanced MR in the evaluation of preoperative meningioma embolization

To evaluate the use of postembolization gadolinium-enhanced MR imaging as a means to judge the efficacy of tumor embolization. Fifteen patients with meningiomas were prospectively studied. The following data were evaluated for each tumor: the percentage of vascular supply to the tumor arising from t...

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Bibliographic Details
Published in:American journal of neuroradiology : AJNR 1993-05, Vol.14 (3), p.563-569
Main Authors: Grand, C, Bank, WO, Baleriaux, D, Matos, C, Dewitte, O, Brotchi, J, Delcour, C
Format: Article
Language:English
Subjects:
Adult
Aged
Biological and medical sciences
Blood Loss, Surgical - prevention & control
Contrast Media
Embolization, Therapeutic
Female
Gadolinium DTPA
Humans
Magnetic Resonance Imaging
Male
Medical sciences
Meningeal Neoplasms - diagnosis
Meningeal Neoplasms - surgery
Meningioma - diagnosis
Meningioma - surgery
Middle Aged
Neurology
Organometallic Compounds
Pentetic Acid
Preoperative Care
Prospective Studies
Radiography, Interventional
Tumors of the nervous system. Phacomatoses
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Summary:To evaluate the use of postembolization gadolinium-enhanced MR imaging as a means to judge the efficacy of tumor embolization. Fifteen patients with meningiomas were prospectively studied. The following data were evaluated for each tumor: the percentage of vascular supply to the tumor arising from the internal and external carotid arteries; the percentage of the tumor embolized as judged by angiography, by MR imaging, and by CT scanning; the estimated blood loss according to the surgeon; and histologic evidence of necrosis as seen by the neuropathologist. The data reveal an excellent correlation between the amount of tumor embolized as estimated by MR and both the estimated blood loss at time of surgery and the presence of histological necrosis in the specimen. Postembolization gadolinium-enhanced MR is an excellent means to evaluate the efficacy of an embolization and offers certain advantages over CT and angiography. One important advantage of this technique lies in the fact that it can be performed immediately postembolization.
ISSN:0195-6108
1936-959X