0
Apparent diffusion coefficient (ADC) measures the magnitude of diffusion (of water molecules) within cerebral tissue. A low value for ADC indicates that the cortical white matter tracts are organized (good), while a high value for ADC indicates that these tracts are disorganized (bad). When evaluating an acute ischemic stroke, ADC image sequences play a crucial role. Ischemic brain parenchyma tends to have a low ADC value. This is in turn correlated with a high diffusion weighted imaging (DWI) value to confirm that the ischemia is not secondary to an MRI artifact known as T2 shine through. The latter would demonstrate a high signal on DWI imaging, but would continue to demonstrate high intensity on ADC sequences.
What else can I help you with?
What is the relation between apparent diffusion coefficient and mean diffusivity on DTI?
Apparent diffusion coefficient (ADC) is a measure of water diffusion in all directions, while mean diffusivity is a measure of the average diffusion within a voxel. ADC includes the effects of both isotropic and anisotropic diffusion, whereas mean diffusivity reflects the overall diffusion within the voxel. In DTI, ADC is calculated as the average of the three eigenvalues, which correspond to the three principal diffusion directions and contribute to mean diffusivity.
Can computer solve exponential function?
Do you mean "equations involving exponential functions"? Yes,
What does exponential form mean in math terms?
A number is in exponential form when it is written with a base and an exponent.
What does coefficient mean in math terms?
a coefficient is the number before the variable.example- 4y the 4 before the y is the coefficient.
What does the term coefficient mean in math?
A coefficient is any number in front of a variable .
What does the medical abbreviation ION mean?
The abbreviation ion stands for several things. One of the things it stands for is Inferior Esophageal Nerve. Another item that ion stands for is Ionic Self-Diffusion Coefficient D.
What mean of corelation coefficient?
applications of carl Pearson coefficient of corelation applications of carl Pearson coefficient of corelation applications of carl Pearson coefficient of corelation applications of carl Pearson coefficient of corelation applications of carl Pearson coefficient of corelation applications of carl Pearson coefficient of corelation
What does k mean in algebra?
The coefficient
Is it possible for a coefficient of variation to be negative?
Of course it is! If the mean of a set of data is negative, then the coefficient of variation will be negative.
What are the properties of correlation coefficient?
The correlation coefficient is symmetrical with respect to X and Y i.e.The correlation coefficient is the geometric mean of the two regression coefficients. or .The correlation coefficient lies between -1 and 1. i.e. .
Is it possible for a coefficient of variation to be negative Explain.?
Of course it is! If the mean of a set of data is negative, then the coefficient of variation will be negative.
What is the coefficient Use 4H20?
The coefficient for H2O in an equation represents the number of water molecules. In this case, the coefficient for 4H2O would mean there are 4 water molecules present.
