Diagnostic Accuracy of the Constructive Interference in Steady State Sequence Alone for Follow-Up Imaging of Vestibular Schwannomas

A−C, Postoperative MR imaging of a patient with right-sided VS. The axial T1WI (A), postcontrast T1WI (B), and CISS (C) image demonstrate postoperative changes on the right and a small residual lesion (arrow) within the cerebellopontine angle. D−F, The residual mass (arrow) is stable in the follow-up T1WI (D), postcontrast T1WI (E), and CISS imaging (F) performed 2 years later.