Sometimes your MRI results may be different from earlier test
results because you were tested at a different medical center or you had a
different kind of test.
Several special MRI methods have been
developed to look at the brain.
Magnetic resonance spectroscopy
shows changes in brain chemistry that may occur in certain areas of the brain.
These changes may help show diseases that affect the brain.
Magnetic resonance angiography (MRA) can be used to study
blood vessels. Dye may be injected into the blood vessels so blood flow can be
seen clearly. MRA can also be used to show the speed and direction of blood
flow. For more information, see the topic
Magnetic Resonance Angiogram (MRA).
Diffusion-perfusion imaging shows the water content and
character of the brain. This method can give an early diagnosis of a
stroke and may help predict the outcome of stroke. It
can also be used to find tumors or inflammation of the brain.
Other Works Consulted
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis:
Pagana KD, Pagana TJ (2010). Mosby?s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.