title: Doppler haematotachography: problems in interpretation and new applications.
abstract: The Doppler-echographic examination (HTG) seems to be developing into a screening method for the detection of abnormalities of the large cerebropetal vessels. An appraisal is made of the possibilities and limitations of the HTG based on the literature, a group of 250 patients and several relevant case histories. In general an abnormal HTG curve seems to warrant further diagnostic investigations (angiography). A normal HTG curve not be considered sufficient reason to omit an angiographic examination. A number of new applications of the HTG examination are mentioned.
mesh_terms: D016122:Brachiocephalic Trunk; D001926:Brain Death; D002340:Carotid Artery Diseases / Q000175:diagnosis; D002343:Carotid Artery, Internal; D002561:Cerebrovascular Disorders / Q000175:diagnosis*; D003097:Collateral Circulation; D003951:Diagnostic Errors; D004301:Doppler Effect; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis; D007427:Intracranial Pressure; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography; D014711:Vertebral Artery