Author/Authors :
Saboori, Masih Associated Professor of Neurosurgery - Department of Neurosurgery - Alzahra Hospital, Isfahan University of Medical Sciences , Hekmatnia, Ali Associated Professor of Neurosurgery - Department of Neurosurgery - Alzahra Hospital, Isfahan University of Medical Sciences , Ghazavi, Amirhossein Associated Professor of Neurosurgery - Department of Neurosurgery - Alzahra Hospital, Isfahan University of Medical Sciences , Basiratnia, Reza Associated Professor of Neurosurgery - Department of Neurosurgery - Alzahra Hospital, Isfahan University of Medical Sciences , Omidifar, Navid Resident - Department of Pathology, Shiraz University of Medical Sciences, Shiraz , Hekmatnia, Farzaneh Medical Student , University of London, UK , Isfahani, Homayoon Naji Instructor of Operating Room Department - Faculty of Nursing and Midwifery - Medical University of Isfahan (MUI), Isfahan
Abstract :
BACKGROUND: In order to declare the preoperative diagnostic value of brain aneurysms, two radiological modalities,
computed tomographic angiography and digital subtraction angiography were compared.
METHODS: In this descriptive analytic study, diagnostic value of computed tomographic angiography (CTA) was compared
with digital subtraction angiography (DSA). Sensitivity, specificity, positive and negative predictive values were
calculated and compared between the two modalities. All data were analyzed with SPSS software, version 16.
RESULTS: Mean age of patients was 49.5 ± 9.13 years. 57.9 % of subjects were female. CTA showed 89% sensitivity
and 100% specificity whereas DSA demonstrated 74% sensitivity and 100% specificity. Positive predictive value of
both methods was 100%, but negative predictive value of CTA and DSA was 85% and 69%, respectively.
CONCLUSIONS: Based on our data, CTA is a valuable diagnostic modality for detection of brain aneurysm and subarachnoid
hemorrhage
Keywords :
CT scan angiography , digital subtraction angiography , cerebral aneurysm , subarachnoid hemorrhage
