| Magnetic Resonance |
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With appointment only Not covered by the RAMQ - see methods of payments Click here to find out how to prepare for the exam. Magnetic resonance is an exam without radiation which uses a powerful magnetic field, waves of radio frequency, receptive antennas and a highly perfected computerized system. Our two sophisticated magnetic resonance apparatus, permit the detection of lesions which would not be visible with other apparatus, such as radiography, ultrasound or scanner (CT), because the magnetic resonance can differentiate between the tissues, which is unique in this type of imaging. For example, in the resonance of the knee, identification of the ligaments, meniscus and peri-articular tissues in addition to the bone itself can be obtained. Magnetic resonance holds a very important role in the imaging of the nervous system, the musculo-skeletal system and the circulatory system, allowing a precise and detailed evaluation of the brain, the spine, the bone marrow, the articulations, the blood vessels (stenosis, aneurysm) and the breasts. It can also be useful in the characterization of certain aldomino-pelvic lesions. Breast MRI has well-defined indications. The main ones are : 1. Evaluation of breast implants MRI is sensitive to infiltrating cancers larger than 3mm. MRI is less sensitive for in situ cancers and low grade infiltrating cancers. On occasion, an injection of a substance (Gadolinium) can be necessary to augment the sensibility of detection of certain lesions and their characterization.Magnetic resonance is a very safe exam with no side effects. There are however some absolute contraindications, such as pacemaker, etc. It is important to mention any previous surgery or surgical material such as implants or aneurism clips.
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