Effect

Technique

Parameter

Name

Symbol

Unit

Type

Infiltration

Relaxometry

T1 relaxation time

T1

ms

physico- chemical

T2 relaxation time

T2

spin density

M0

%

chemical

Magnetisation transfer

magnetisation transfer ratio

R

%

physical

macromolecular volume

V

mm³

geometrical

macromolecular concentration

C

%

chemical

Susceptibility weighted

magnetic susceptibility

X

no dimension

physical

magnetic permeability

P

H/m

iron concentration

I

mmol/g

chemical

Dynamics

Diffusion

diffusion coefficient

D

mm²/s

physical

anisotropy

A

no dimension

geometrical & physical

fractional volume

V

%

geometrical

Flow

volume

V

ml (blood)/ 100g (tissue)

geometrical

flow

f

ml/g/min

physical

Elastography

Any

thickness

T

mm

geometrical

area

A

mm²

volume

V

mm³

Elastography

stiffness

S

kPa

physical