Table 4 Comparison between control group and patients with obstruction at the level of foramen of Monro regarding velocity and flow parameters

PDV (cm/s)

 Range

7.9

1.7–1.85

2.92–6.03

 Mean ± SD

7.9

1.775 ± 0.106

4.428 ± 1.156

 T

2.864

− 2.250

 P value

< 0.019*

0.051*

PSV (cm/s)

 Range

7.8

1.8–1.93

2.7–6

 Mean ± SD

7.8

1.856 ± 0.091

4.560 ± 1.076

 T

2.870

-2.445

 P value

< 0.018*

0.037*

MV (cm/s)

 Range

7.85

1.6–1.72

2–4.45

 Mean ± SD

7.85

1.66 ± 0.044

3.493 ± 0.782

 T

5.314

− 2.309

 P value

< 0.001*

0.046*

MSF (m/s)

 Range

0.18

0.021–0.03

0.03–0.06

 Mean ± SD

0.18

0.025 ± 0.006

0.049 ± 0.011

 T

11.350

− 1.646

 P value

< 0.001*

0.134

SV (µL)

 Range

61

11.7–13.1

15–33

 Mean ± SD

61

12.4 ± 0.989

21.475 ± 5.898

 T

6.390

− 1.532

 P value

< 0.001*

0.160