Echo Planar Imaging (EPI) is a fast magnetic resonance imaging sequence, in which the whole k-space can be acquired in a single shot. One volume of the brain can be acquired in less than 3 seconds, making it the ideal choice for techniques which require the acquisition of high numbers of images (functional MRI - fMRI, Diffusion Tensor Imaging - DTI).

Magnetic Resonance Imaging (MRI) is a medical imaging technique based on the magnetic properties of protons. MRI is a tomographic modality, which means it images a set of slices through the body. Variations of the numerous imaging parameters yield multiple contrasts (T1-weighted images, T2-weighted images, proton density,...) which are complementary for the diagnosis of lesions. In addition, advanced MRI techniques (fMRI, DTI, perfusion imaging) make it possible to measure physiological parameters during an MRI examination.

Brain imaging or neuroimaging is a large field which includes all techniques which can generate images of the brain:

Neuroimaging Techniques

• Magnetic Resonance Imaging (MRI)
• Functional MRI (fMRI)
• Diffusion Tensor Imaging (DTI)
• Perfusion MRI
• Computed Tomography (CT)
• Positron Emission Tomography (PET)

Applications of neuroimaging

• Clinical neuroradiology
• Neurosurgical Planning
• Research in neurosciences
• Non-medical applications: neuromarketing, lie detector,...

Clinical Cases in Neuroimaging

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