6533b857fe1ef96bd12b4423

RESEARCH PRODUCT

Evaluation of collateral flow capacity in patients with vascular or tumorous lesions of the skull base by Doppler sonography

H. Böcher-schwarzGeorg FriesAxel PerneczkyK. UngersböckP. Ulrich

subject

AdultMalemedicine.medical_specialtySkull NeoplasmsCerebral arteriesCollateral CirculationAneurysmmedicine.arteryPressuremedicineHumansAgedUltrasonographyBrain Neoplasmsbusiness.industryGeneral MedicineCerebral ArteriesMiddle AgedCollateral circulationmedicine.diseaseCerebrovascular DisordersDoppler sonographySkullCarotid ArteriesCollateral flowmedicine.anatomical_structureCerebrovascular Circulationcardiovascular systemFemaleSurgeryNeurology (clinical)RadiologyNeurosurgeryInternal carotid arterybusiness

description

In 12 patients with vascular or tumorous lesions of the skull base, the collateral flow capacity was examined by transcranial Doppler sonography and carotid compression studies. In four patients no cross flow mechanism was found, in two patients the test remained unclear, and in six patients the examination suggested a good collateral flow capacity. However, for this application of Doppler sonography no borderlines have yet been defined and thus interpretation is difficult. Intraoperative Doppler sonography was used in five patients and proved to be helpful for localisation of the internal carotid artery within skull base tumors.

https://doi.org/10.1007/bf00310654