Lo studio neuroradiologico dell'idrocefalo Valutazione pre- e post-chirurgica con particolare riguardo all'approccio endoscopico

The neuroradiological study of hydrocephalus in the period of endoscopic surgery yields new questions and new findings. If CT remains the method of choice in the first diagnosis of hydrocephalus and in the study of the early complications it is no longer useful in the post surgical follow-up at medium and long term. MR is the gold standard for surgical planning, due to its capability to demonstrate the anatomy of the third ventricle. This is also true in the post surgical follow-up of third ventriculocisternostomies. The functional information obtained on the patency of the opening is more significant than the morphological information on the ventricular dimensions. The quantitative studies performed with specific flow sequences and cine-MR are accurate but they are not of great value in clinical practice, as a higher sensitivity over the quantitative information (flow vs. no flow) obtained with the FSE and TSE T2w sequences has not yet been demonstrated.