Idiopathic intracranial hypertension (IIH)

Specialized MRI for Elevated Intracranial Pressure—Identifying Causes and Protecting Vision

Using modern MRI techniques, we can identify typical signs of increased intracranial pressure and specifically investigate key causes.

Our brain is surrounded by a protective fluid known as cerebrospinal fluid (CSF). When pressure inside the skull is elevated, this can lead to symptoms such as headaches, visual disturbances, tinnitus, or swelling of the optic disc.

One specific form is idiopathic intracranial hypertension (IIH). In this condition, there is increased intracranial pressure without any detectable cause, such as a tumor or another space-occupying lesion.

Using specialized MRI scans of the brain, the eye sockets, and the venous blood vessels, we can look for characteristic changes.

Our specialized diagnostic procedures

• Targeted examination of the eyes and optic nerves: Increased intracranial pressure can cause typical changes in the eyes and optic nerves. Using high-resolution MRI images, we can detect, for example, dilation of the optic nerve sheaths, flattening of the posterior wall of the eyeball, or protrusion of the optic disc.

• Examination of the pituitary gland and the skull base: Prolonged elevated intracranial pressure can lead to characteristic changes in the area of the pituitary gland, known as an “empty sella.” This finding may indicate elevated intracranial pressure but is not conclusive on its own.

• Imaging of the venous blood vessels (MR venography): Using a specialized MRI scan, we can evaluate the major venous blood vessels of the brain. We look for possible narrowings and, in particular, rule out blood clots in the venous blood vessels (venous sinus thrombosis).

Why is an early diagnosis important?

Persistently elevated intracranial pressure can damage the optic nerves and, in the worst case, lead to permanent vision loss.

That is why it is particularly important to detect the condition as early as possible and to initiate appropriate treatment in a timely manner.

Close Collaboration with Neurology and Ophthalmology

MRI provides important clues regarding increased intracranial pressure. However, further examinations are necessary for a definitive diagnosis.

These include, in particular, an ophthalmological examination of the optic nerve head, measurement of the nerve fiber layer in the eye (OCT), and, if necessary, measurement of cerebrospinal fluid pressure via a lumbar puncture.

Through close collaboration between neuroradiology, neurology, and ophthalmology, we can jointly evaluate the findings and plan further treatment in a targeted manner.

Our goal: to detect increased intracranial pressure early, determine its causes, and protect vision in the long term through targeted diagnostics.