The value of colour subtraction of angiograms particularly in cerebro-vascular disease.
Eighty colour subtractions of cerebral angiograms have been analysed to assess their value in actual diagnosis, particularly of cerebrovascular disease. The method has been found to be so valuable, either for confirmation of the findings seen on the original angiograms or in providing new data about the accurate localization and nature of the lesion, that it has now become a routine for all cerebrovascular cases. A selection of cases is presented and the limitations of the method discussed.
D001932:Brain Neoplasms / Q000000981:diagnostic imaging; D002533:Cerebral Angiography / Q000379:methods*; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging*; D003116:Color; D006801:Humans; D002546:Ischemic Attack, Transient / Q000000981:diagnostic imaging; D013679:Technology, Radiologic