[Digital-subtracted magnetic resonance (DSMR). A new procedure for improved imaging of vascular processes].

Using varying echo-sequences, NMR studies of flow in vessels shows varying signal relationships which are caused by intermittent re-focussing of the elementary magnetic particles. By means of digital subtraction of the tomograms, this effect can be clearly shown. It has been demonstrated that this particular procedure can be used for improved visualisation of vessels and of abnormal vascular processes (thrombosis, tumours, aneurysms etc.).