Synapse vincent imaging system

The volumes of the whole tumor, the tumor located in the bilateral CS, and the bilateral LRSS were measured. All pre and postoperative MRI and preoperative computed tomography (CT) images were retrospectively reviewed by three authors (Kenzo Kosugi, Taro Mase, and Haruka Tamura), who calculated the whole tumor and CS tumor removal rate [Figure 1]. Volumetric analysis was performed using the SYNAPSE VINCENT imaging system (Fujifilm Medical Co., Tokyo, Japan), and the segmentation tool function was used on gadolinium-enhanced T1-weighted images obtained close to the surgery date. LRSS was examined using the coronal planes from each patient. On each coronal plane, the Vidian canal and the rotundum foramen were connected, and the SS area in the lateral line side was measured. The volume of both LRSS sides was calculated by integrating each area from end to end of the lateral recess in the coronal plane. The pre- and post-surgery volumes of the whole tumor volume and the bilateral CS tumor were also measured on the coronal plane.