Coloring technique of magnetic resonance angiography for superficial temporal artery to middle cerebral artery bypass surgery.

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Coloring technique of magnetic resonance angiography for superficial temporal artery to middle cerebral artery bypass surgery.

World Neurosurg. 2018 Jan 20;:

Authors: Okazaki T, Irie S, Inagaki T, Saito O, Yamashina M, Hyase H, Nakagawa H, Nagahiro S, Saito K

Abstract
Superficial temporal artery (STA)-middle cerebral artery (MCA) bypass is an established surgical technique for achieving revascularization. It is important to select the proper recipient artery of MCA. 3D-CTA and conventional angiography are useful in the selection process but need contrast agents. The authors designed the coloring MRA technique that needed no agents to visualize the recipient artery. Retrospective evaluation of the efficacy and limitation for selection of the recipient artery and decision of the place and size of the craniotomy were carried out. Since Jan 2013, ninety-two patients underwent STA-MCA bypass with reference to the coloring MRA. The control group consisted of 75 patients who underwent between Jan 2012 to Nov 2013 with reference to 3D-CTA. The size of craniotomy was retrospectively calculated and compared. To evaluate whether the bypass was done properly or not, 3D-CTA or coloring MRA were postoperatively performed in all cases. Neither additional craniotomy nor wrong selection of the recipient artery were done in both groups. There was no significant difference in the size between the two groups in both of single and double bypass. The coloring MRA technique was not inferior to 3D-CTA with respect to the size of craniotomy. But, this novel technique was found to be very helpful for not only the virtual identification of the proper recipient artery but also preoperative simulation such as the decision of length of donor, location, and size of craniotomy.

PMID: 29366994 [PubMed - as supplied by publisher]

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