Abstract
An MRI technique permitting direct, noninvasive display of brain surface structures (surface anatomy scanning, SAS) was developed using T2-weighted images. In this study, synthesised SAS, which combines contrast-enhanced MR angiography and SAS, was used to 50 cases, and the detection rate of lesions and preoperative simulation was evaluated. Synthesised SAS enabled detection of more lesions (94%) than SAS alone (52%). Synthesised SAS has the following advantages: noninvasive visualisation of the brain surface structures (sulci, lesions and veins) and skin markers for surgical planning; practical data acquisition and postprocessing times; preoperative assessment of the suitability for a craniotomy; and minimisation of surgical damage to normal brain tissues and veins.
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