dcmri.PD

dcmri.PD(tissue='gray matter') → float

Relative proton density (PD) value of selected tissue types.

Values are taken from Gach et al 2008

Parameters:

tissue (str, optional) – Tissue type. Defaults to ‘gray matter’.

Raises:

ValueError – If the requested PD values are not available.

Returns:

PD values (dimensionless, range 0-1)

Return type:

float

Note

This library is in construction and not all known values are currently available through this function.

Available tissue types:

• skin

• bone marrow

• csf

• white matter

• gray matter

Example

>>> import dcmri as dc
>>> print('The PD of skin is', dc.PD('skin'))
The PD of skin is 0.8