Hydrocephalus - Sagittal MR
Hydrocephalus - Sagittal MR
Search Pattern Assist ?Exam
Purpose
2. The next purpose of the sagittal image sequences is to assess the plane of the foramen magnum and determine whether there is evidence of downward tonsillar herniation.
3. The sagittal image can be used to further address any abnormality evident on the initial axial sequences.
Findings
Sagittal MR
There is upward bowing of the lamina terminalis and distension of the optic and infundibular recesses of the 3rd vent indicating elevated intraventricular CSF pressure. [Yes/No]
There is downward displacement of the tuber cinereum/mammillary bodies initially reaching then passing the plane of the incisura consistent with central incisural downward (transtentorial herniation). [Yes/No]
There is downward displacement of the tuber cinereum and mammillary bodies progressively reducing the size of the interpeduncular space; ultimately the tuber cinereum may reach the belly of the pons. [Yes/No]
There is abnormal rotation of the optic chiasm/visual pathway consistent and ventral displacement progressively reducing the size of the suprasellar space. [Yes/No]
There is herniation of the suprasellar cistern into the intrasellar space. [Yes/No]
There is posterior fossa mass effect produced by dilatation of the 4th ventricle, which has produced upward herniation. [Yes/No]
There is posterior fossa mass effect produced by dilatation of the 4th ventricle, which has produced downward tonsillar herniation. [Yes/No]
There is unexplained downward incisusal and tonsillar herniation with or without ventriculomegaly, which is most consistent with intracranial hypotension (ICH). [Yes/No]
NO other significant imaging findings are present. [Yes/No]
