title: [Cerebral macroangiography under hypocapnia and moderate arterial hypertension in the diagnosis of intracerebral tumors].
abstract: As angiography with the usual X-ray tubes only permitted the demonstration of vessels of up to 600-800 micron, more efficient X-ray tubes have been developed permitting vascular demonstrations of up to 100 micron. Since the possibility of demonstrating small and very small vessels under hypocapnia is improved by hyperventilation and a slight increase in arterial blood pressure by ephedrine (30 mg I.A.), 46 patients were examined by employing this combination. Normal vessels contract, tumour vessels remain large. In this way, size and extent of the tumour are better demonstrated, the boundaries become clearer, differential diagnosis safer. Also the venous outflow can be seen earlier and clearer. Insults can be better differentiated. The risk is diminished by an increase in the resistance of the cerebral vessels. The information obtained by this method is a true improvement for diagnostics, indication, and surgical intervention.
mesh_terms: D001932:Brain Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D002245:Carbon Dioxide; D002533:Cerebral Angiography / Q000379:methods*; D006801:Humans; D006973:Hypertension; D006985:Hyperventilation
chemical_list: D002245:Carbon Dioxide
vernacular_title: Die zerebrale Makroangiographie unter Hypokapnie und mässiger arterieller Hypertension in der Diagnostik von intrazerebralen Tumoren.