This retrospective study aimed to investigate the feasibility of preoperative MRI measurements of Meckel cavity volume using 3D SPACE sequence and its values in guiding percutaneous balloon compression of the trigeminal nerve. Our results showed that there was no statistically significant difference between the volume of Meckel cavity using the axis, coronal and sagittal directions of MRI images and intraoperative balloon filling volume. 3D SPACE is helpful to guide the operation in clinical application.
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