title: Spiral CT Angiography: Applications in Neurovascular Imaging.
abstract: BACKGROUND
  The advent of Spiral Computed Tomographic (CT) angiography has provided the patients a non-invasive, accurate and fast modality of imaging the vasculature.
  
  
  METHODS
  Spiral CT angiography was performed in 30 patients to evaluate intracranial circulation using standard protocols of data acquisition. The images were processed and reconstructed in 3-dimension to delineate anatomy and pathology accurately.
  
  
  RESULTS
  The study established that CT angiography is an accurate modality for evaluating the intracranial circulation in a variety of abnormalities. It is safe both in terms of being non-invasive and exposure to radiation. It has a distinct advantage over other non-invasive modalities of imaging like MRI in the evaluation of patients with metallic stents and clips.
  
  
  CONCLUSIONS
  CT angiography has tremendous potential in imaging the intracranial vasculature. It is unquestionably safer than catheter angiography as it avoids arterial puncture and intra-arterial catheter manipulation. It is fast and capable of producing excellent 3-dimensional images of the intracranial vasculature.
authors.affiliation: Associate Professor (Radiodiagnosis & Imaging) Armed Forces Medical College Pune-411040.
authors.forename: A
authors.initials: A
authors.lastname: Alam
authors.affiliation: Sr Adv (Radiodiagnosis & Imaging), Command Hospital (Air Force), Bangalore-560 007.
authors.forename: B N
authors.initials: BN
authors.lastname: Chander
keywords: CT Angiography; Neurovascular imaging; Spiral CT