Magnetic Resonance Imaging

Magnetic Resonance Imaging


Dental



Basic Information image



Synonym(s)




MRI



Overview and Goal(s)




• Magnetic resonance imaging (MRI) generates images based on the response of tissue to radiofrequency (RF) pulses while present within a strong magnetic field.


image The images depict the tissues based on a number of different factors that include but are not limited to the composition of and the environment in and around the tissue of interest.

image Factors such as degree of proton movement (fluid vs. collagen) and local magnetic fields (the ferrous portions of degrading blood products respond to the external magnetic field) influence the imaging characteristics in the area of interest.

image MRI is particularly useful for the evaluation of soft tissues and fluid as expected in chronic inflammatory conditions and sinusitis.

image Tissues containing a high percentage of collagen or hydroxyapatite, a main component of bone and dental tissue, produce no or very low signal when exposed to an external magnetic field and RF pulses. For this reason, dental and osseous structures appear black.

image MRI can be useful to infer disease of the hard tissues by pathology detected in the surrounding structure and shape and margination change of the hard tissues themselves.

image Excess fluid content in bone as found in osteomyelitis can be detected using MRI.
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Jul 24, 2016 | Posted by in SMALL ANIMAL | Comments Off on Magnetic Resonance Imaging

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