An Objective Study of Anatomic Shifts in Intracranial Hypotension Using Four Anatomic Planes

Table 2

values of Table 2 measurements.

Variable	Nrl-1	Nrl-2	Nrl-3	1-2	1–3	2-3
Distance from mammillary body tip to incisura line	0.04; (0.10)	<0.0001; (<0.0001)	<0.0001; (<0.0001)	0.05; (0.002)	<0.0001; (<0.0001)	<0.0001; (<0.0001)
Distance from the diaphragm sella to the optic chiasm	<0.0001	<0.0001	<0.0001		<0.0001
Angle of the optic chiasm	<0.0001	<0.0001	<0.0001	0.93	<0.0001	<0.0001
Height of the interpeduncular cistern at the plane of the cecum			<0.0001
Mammillopontine distance	<0.0001	<0.0001	<0.0001
Ratio of interpeduncular cistern	<0.0001	<0.0001	<0.0001
Distance from iter to tuberculum-venous confluence line			<0.0001		<0.0001	<0.0001
Distance from splenium of the corpus callosum to the incisura line			<0.0001		<0.0001	0.0001
Distance from caudal pole of tonsils to plane of the foramen magnum	<0.0001		<0.0001
Distance from obex to plane of foramen magnum	<0.0001

Table providing values. Nrl = normal patient cohort, 1 = grade 1 IH patients, 2 = grade 2 IH patients, and 3 = grade 3 IH patients.