C.8.13.5.14.1 ASL Context

The attribute ASL Context (0018,9257) categorize the Original ASL images according to three contexts.  This categorization allows post processing applications to select the correct type of image.

LABEL: Images are acquired with magnetically labeled arterial blood supply.

CONTROL: Images are acquired with a 'control' pulse in the proximal vessels.

M_ZERO_SCAN: Images are acquired with no label or control pulse in the proximal vessels.