Paper title | Feasibility and safety of intraoperative BOLD MRI cerebrovascular reactivity to evaluate extracranial-to-intracranial bypass efficacy |
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Paper code | P40 |
Authors | |
Form of presentation | Poster |
Topics |
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Abstract text |
Aims: Blood Oxygenation-Level dependent Magnetic Resonance Imaging (BOLD MRI) sequences help to investigate cerebrovascular reactivity (CVR) to predict stroke risk in patients affected from chronic cerebrovascular steno-occlusive diseases. We aimed to conduct a preliminary study to investigate the feasibility and safety of intraoperative BOLD MRI to assess CVR in extracranial-to-intracranial bypass (EC-IC) procedures. Methods: Eight patients operated with EC-IC bypass underwent an additional intra-operative MR scan with BOLD sequences to assess CVR with breath-holding based techniques after the anastomosis. Results: None of the patients showed post-operative complications or radiological alterations related to prolonged anesthesia time. One patient presented with a hyperperfusion syndrome postoperatively unrelated to the intra-operative MRI. CVR maps were obtained in all subjects showing qualitative variations. Conclusion: Intra-operative BOLD MRI sequence acquisition is a safe option for patients undergoing surgery for EC-IC bypass. This technique might offer important and immediate information on the success and efficacy of a bypass. |