serw-MX  [xml]  

 DeCS Categories

E01 Diagnosis .
E01.370 Diagnostic Techniques and Procedures .
E01.370.350 Diagnostic Imaging .
E01.370.350.825 Tomography .
E01.370.350.825.500 Magnetic Resonance Imaging .
E01.370.350.825.500.150 Diffusion Magnetic Resonance Imaging .
G01 Physical Phenomena .
G01.154 Biophysical Phenomena .
G01.154.280 Facilitated Diffusion .
G01.202 Diffusion .
G01.202.374 Facilitated Diffusion .
G01.202.750 Thermal Diffusion .
G02 Chemical Phenomena .
G02.196 Diffusion .
G02.196.500 Facilitated Diffusion .
G02.196.750 Thermal Diffusion .
G03 Metabolism .
G03.143 Biological Transport .
G03.143.427 Facilitated Diffusion .
SP4 Environmental Health .
SP4.011 Science .
SP4.011.112 Physics .
SP4.011.112.283 Diffusion .
SP4.026 Sewage .
SP4.026.297 Wastewater Disposal .
SP4.026.297.778 Diffusion .
 Synonyms & Historicals
Diffusion Magnetic Resonance Imaging .
Diffusion MRI .
Diffusion Weighted MRI .
Diffusion MRIs .
MRI, Diffusion Weighted .
Magnetic Resonance Imaging, Diffusion .
A diagnostic technique that incorporates the measurement of molecular diffusion (such as water or metabolites) for tissue assessment by MRI. The degree of molecular movement can be measured by changes of apparent diffusion coefficient (ADC) with time, as reflected by tissue microstructure. Diffusion MRI has been used to study BRAIN ISCHEMIA and tumor response to treatment. .
Diffusion .
Diffusions .
The tendency of a gas or solute to pass from a point of higher pressure or concentration to a point of lower pressure or concentration and to distribute itself throughout the available space. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT. .
Thermal Diffusion .
Thermodiffusion .
Diffusion, Thermal .
The movement of molecules from one location to another as effected by temperature changes. .
Facilitated Diffusion .
Diffusion, Facilitated .
The passive movement of molecules exceeding the rate expected by simple diffusion. No energy is expended in the process. It is achieved by the introduction of passively diffusing molecules to an enviroment or path that is more favorable to the movement of those molecules. Examples of facilitated diffusion are passive transport of hydrophilic substances across a lipid membrane through hydrophilic pores that traverse the membrane, and the sliding of a DNA BINDING PROTEIN along a strand of DNA. .