Magnetic resonance – as in magnetic resonance imaging or MRI
Glossary
WP Glossary
MRA
Magnetic Resonance Angiography. A magnetic resonance image of blood vessels which, unlike routing angiography, is noninvasive.
MRI
Magnetic resonance imaging. A sophisticated imaging technique using magnetic fields instead of x-rays to create the image.
mRNA
Messenger RNA – a type of RNA that passes genetic information from the DNA to the ribosome that directs protein synthesis.
MRP
Magnetic Resonance Perfusion. Magnetic Resonance Imaging technique for evaluating perfusion or the degree of delivery of oxygen and nutrients by blood circulation to a tissue.
MRS
Magnetic resonance spectroscopy – specialized magnetic resonance imaging used to characterize and quantitative relative concentrations of brain metabolites. This information can be used in determining the tissue type in an area of interest on a routine magnetic resonance image.
MRS
Magnetic resonance spectroscopy – This refers to using the MR scanner to perform a NMR analysis of the tissue being imaged ignorer to gain information about its molecular makeup.
MRSA
Methicillin resistant Staphylococcus aureus – a strain of bacteria that has developed a resistance to a commonly used penicillin antibiotic, methicillin.
MSA
Muscle smooth actin – refers to a stain for muscle actin occurring in skeletal, cardiac and other smooth muscles. It does not stain non-muscle actin. It is used to differentiate tumors containing muscle elements from those that do not.
MSX2
A gene responsible for coding for the synthesis of the Homeobox protein MSX-2. This protein regulates apoptosis of neural crest cells occurring during the morphogenesis of the skull and face.