Contrast enhancement with time in gliomas. Stereotactic computer tomography following contrast medium infusion.

Dynamic enhancement of astrocytomas has been investigated with CT following infusion of contrast medium. The areas of measurement corresponded with obtained stereotactic biopsies. The resulting types of enhancement are discussed in terms of a 3-compartment model. Great differences exist in the degree of enhancement of astrocytomas of grade I to II and those of grade III to IV. In the latter tumours a dynamic response appears to occur, distinctly different from that in infarctions.