TODO
-------------------------

* Make More Example Datasets

	- Radial
	- Diffusion
	- Phase contrast flow

* Flag definitions.

	- Do we need more flags?

* Converters for vendor raw data

	- Siemens (Hansen)
	- Philips (Kozerke? Boernert?)
	- GE (Hargreaves?)
	- Bruker (Hansen?)
