Additional file1: Table S1: Patient characteristics, Table S2: CT and TCS findings for the 100 patients included for analysis, Figure S1: Study design, Figure S2: Study flow chart, Figure S3: Right and left sides V3 diameters measured by TCS compared with CT, Figure S4: Comparison of V3 diameters measured by TCS, according to the hydrocephalus status, Figure S5: V3 diameters measured by TCS compared with the other side