¶ … Magnetic Resonance System on patients
Magnetic resonance System (Imaging), here after referred to as (MRS), or nuclear magnetic resonance imaging (NMRI), is a medical imaging technique widely used in radiology to visualize detailed internal structure and limited function of the body. It provides great contrast between the different soft tissues of the body, making it particularly useful in neurological (brain), musculoskeletal, cardiovascular and ontological (cancer) imaging. MRS uses a powerful magnetic field to align the nuclear magnetization of (usually) hydrogen atoms in water in the body (Adams, 1989). To systematically alter the alignment of this magnetization, Radio frequency (RF) fields are used, enhancing the generation of a rotating magnetic field by the hydrogen nuclei that can be detected using a scanner.
MRS can detect the chemical composition of diseased tissue and produce color images of brain function. This signal can be controlled by more magnetic fields to build up adequate information to create an image of the body. Through MRS doctors can get highly refined images of the body's interior without surgery since the entire body is visible to the technique, which poses few known health risks. (Rublee, 1989). This method can be used to detect the extent of the brain injury or the spinal injury. It helps in detecting the extent of the injury so as to enable doctors to take the appropriate management measures to help the patients.
MRS scanning should not be used when there is the possibility for an interaction between the strong MRI magnet and metal objects that might be imbedded in a patient's body. The force of magnetic attraction on certain types of metal objects (including surgical steel) could move them within the body and cause serious injury (Clark et al., 2003). Metal may be imbedded in a person's body for various reasons like;
Medical: People with implanted cardiac pacemakers, metal aneurysm clips, or who have had broken bones repaired with metal pins, screws, rods, or plates.
Injury: Patients with bullet fragments or other metal pieces in their body from old wounds and should duly inform their doctors.
Occupational:...
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