Functional MRI (fMRI)

Istanbul

Medically reviewed by Dr. Mahir Turan, MD · Last reviewed April 7, 2026

Functional MRI (fMRI) in Istanbul is available at 3 hospitals in the Voumed network.

Functional MRI, often shortened to fMRI, is a special kind of magnetic resonance imaging that maps activity in the brain rather than just its structure. While a standard MRI shows the shape of the brain, fMRI reveals which regions switch on when a person performs a task such as speaking, moving a hand or sensing touch. It does this by detecting tiny changes in blood flow and oxygen that follow brain activity, all without ionising radiation. This makes it an invaluable planning tool before surgery or other treatments near important parts of the brain.

At a glance

Type: functional brain imaging (no ionising radiation)
Used for: mapping speech, movement and sensory areas before brain surgery, radiotherapy or other cranial procedures
Key benefit: shows critical functional areas so they can be protected during treatment
Contrast: usually none; the signal comes from the body's own blood oxygen changes
Where it is used: accredited neuroimaging centres abroad

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