The role of different imaging modalities: is MRI a conditio sine qua non for ETV?
OBJECTIVE
To describe the different imaging modalities used for the diagnosis and classification of hydrocephalus, their role in defining the optimal treatment of hydrocephalus and to define the optimal preoperative diagnostics for endoscopic third ventriculocisternostomy (ETV).


METHODS
An overview on available imaging modalities for hydrocephalus will be given and their pros and cons discussed. In addition, different aspects of the treatment of hydrocephalus by shunts and by ETV will be highlighted.


CONCLUSIONS
The role of the technical aspects of performing an ETV, the role of the surgeon's philosophy, the role of the urgency of the procedure, and the role of informed consent on the requirements for the imaging of the hydrocephalus will be discussed.


CONCLUSIONS
The authors conclude that MRI is a conditio sine qua non for ETV in elective surgical cases.
van Lindert
Erik J
EJ
Neurosurgical Department, Radboud University Nijmegen Medical Centre, Postbus 9101, 6500 HB, Nijmegen, The Netherlands. e.vanlindert@nch.umcn.nl
Beems
Tjemme
T
Grotenhuis
J André
JA
D002648:Child; D004724:Endoscopy; D006801:Humans; D006849:Hydrocephalus / Q000473:pathology* / Q000601:surgery*; D008279:Magnetic Resonance Imaging / Q000592:standards*; D011300:Preoperative Care / Q000592:standards; D020542:Third Ventricle / Q000601:surgery*; D014696:Ventriculostomy