Diagnostic Imaging Service

Magnetic Resonance Imaging (MRI)

WAVES HOSPITAL

MRI Imaging

MRI employs powerful magnets to produce a magnetic field that forces protons in the body to align with the field. Application of a radiofrequency current disrupts the alignment of the protons. When the current is turned off, sensors detect the energy released as the protons realign within the magnetic field. All this information is processed by a computer to create very detailed images. Unlike X-rays or CT, the MRI does not use any form of ionising radiation to generate the images however image acquisition time is much longer and it requires patients to be anaesthetised as they need to be completely still during the process.

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MRI in Veterinary Imaging

MRI scans are particularly useful to evaluate soft tissue structures such as brain, spinal cord, nerves, muscles and tendons as these do not image well on x-ray. In the brain, MRI is also able to differentiate between the white and grey matter. Contrast agents can also be used to further highlight areas of interest.

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