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Preoperative Embolization for Meningeal Tumors: Evaluation of Vascular Supply with Angio-CT

Toshinori Hiraia, Yukunori Korogia, Ken Onoa, Shozaburo Uemurab and Yasuyuki Yamashitaa

a Department of Radiology, Kumamoto University School of Medicine
b Department of Neurosurgery, Amakusa Medical Center, Kumamoto, Japan



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  		FIG 1. A 64-year-old female patient with convexity meningioma.

A, Superselective angiogram of the right middle meningeal artery shows a small ophthalmic branch derived from the middle meningeal artery (arrowheads).

B, Angio-CT image from the same selected artery shows definite enhancement of the lacrimal gland (arrow). The wall of the right eye ball including the retina does not enhance.



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  		FIG 2. A 60-year-old female patient with right sphenoid ridge meningioma.

A, Lateral superselective angiogram of the right accessory meningeal artery shows a stain of the tumor (arrow). A remarkable stain (arrowheads) is observed at the level of the proximal portion of the feeding artery.

B, Angio-CT image at the level of the proximal portion of the feeding artery shows marked enhancement of the lateral pterigoid muscle (arrow). Because angio-CT definitely showed blood supply to the masticatory muscle, the tip of the catheter was advanced more distally to prevent the muscle injury.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X