Sign 3

For the examination, Philips Ingenia 3.0 T and GE Sign 3.0 T MRI scanners were utilized. Patients were placed in a supine position and a standard head coil was applied. Parameters of Philips Ingenia 3.0 T scan: T1-weighted imaging (T1WI) repetition time (TR): 425 ms, echo time (TE): 20 ms; T2WI repetition time (TR): 4000 ms, echo time (TE): 100 ms; matrix: 256 × 256 mm, FOV: 240 × 180, thicknesses: 5 mm. During the enhanced scan, a high-pressure syringe was used to inject gadoterate meglumine (Gd-DOTA) through the median cubital vein at a dose of 0.2 mL/kg and a rate of 2 mL/s, and axial, coronal, and sagittal scans were performed with the T1W1 sequence. Parameters of GE Sign 3.0 T scan: T1WI repetition time (TR): 500 ms, echo time (TE): 25 ms; T2WI repetition time (TR): 5000 ms, TE: 106 ms. Matrix: 256 × 512, FOV: 240 × 240 mm, thickness: 5 mm. During the enhanced scan, a high-pressure syringe was used to inject Gd-DOTA through the median cubital vein in bolus at a dose of 0.1 mL/kg and a rate of 2 mL/s, and axial, coronal, and sagittal scans were performed with the T1WI sequence.