Image fusion is beneficial to examine several modalities (for example, T1 MRI, and PET scan) which bring complementary information, or to compare several examinations. But when different image volumes are acquired during different scanning sessions, taken on another day or on another machine, they are not aligned (due to different patient position; different acquisition geometry). Therefore, their fusion does not make sense without a realignment. This realignment is called image registration.

Image registration can also be used to correct patient movement during dynamic sequences, like fMRI, DTI or perfusion.

Image registration can be done manually by translating and rotating each volume to be registered, until it best matches the volume of reference. However, this operation is time-consuming and cumbersome. Therefore, we have implemented algorithms to make this process automated. The best match between the different volumes is assessed using a metrics, insensitive to image modality or resolution.

In BrainMagix, image registration can be performed either automatically or manually. Automated registration is available using a single click! The figure here below illustrates the automated registration of a CT volume on an MRI. Image registration is also illustrated in this clinical case study.

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.

BrainMagix

According to our customers, BrainMagix is the most user-friendly neuroimaging software available for radiologists and clinicians.
It includes post-processing, visualization and fusion of MRI, CT, PET, fMRI, perfusion and diffusion tensor images.
More infos about BrainMagix and demos.
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fMRI package

Includes everything you need to perform clinical and research fMRI: software, hardware for the stimulation of the patient, setup and training.

Custom applications

We can develop for you complex fMRI paradigms, new BrainMagix modules,etc.