AngioCT in the management of neurointerventional patients: a prospective, consecutive series with associated dosimetry and resolution data

Philip M White, John N Gilmour, Nicholas W Weir, Brian Innes, Robin J Sellar, Robin Sellar

Research output: Contribution to journalArticlepeer-review

Abstract

INTRODUCTION: Endovascular coiling of intracranial aneurysms carries a risk of complications. Early detection and management of complications can improve clinical outcomes. AngioCT is a new imaging technology enabling CT-like images to be generated on a flat-panel digital subtraction angiography system, which can provide immediate "on angio table" identification and thorough assessment of such complications. We prospectively audited its utility during aneurysm coiling in patients following subarachnoid haemorrhage (SAH).

METHODS: A prospective series of 44 patients with SAH undergoing endovascular coiling with AngioCT was audited for image quality and the influence of the AngioCT on patient management. In a parallel experimental study, radiation doses were measured and image quality parameters on standard phantoms were established.

RESULTS: In all patients, AngioCT provided adequate diagnostic information. In 40.9% of patients, AngioCT was a substantial or major factor in determining the management immediately after coiling. Using a 10-s high-dose acquisition technique, acceptable image quality could be obtained rapidly with a radiation dose just over half that for a conventional CT scan of the head (35 mGy versus approximately 60 mGy). No patient in this series required conventional CT to clarify the AngioCT appearance.

CONCLUSION: AngioCT has many applications in the neurointerventional setting. In particular during coiling, AngioCT provides a rapid way to clarify concerns or identify complications and in some cases was the major factor influencing further patient management immediately after coiling. AngioCT images were judged of adequate quality to be clinically useful in all patients in this series.

Original languageEnglish
Pages (from-to)321-30
Number of pages10
JournalNeuroradiology
Volume50
Issue number4
DOIs
Publication statusPublished - Apr 2008

Keywords

  • Adult
  • Aged
  • Aged, 80 and over
  • Angiography, Digital Subtraction
  • Angioplasty
  • Embolization, Therapeutic
  • Female
  • Humans
  • Male
  • Medical Audit
  • Middle Aged
  • Prospective Studies
  • Radiometry
  • Reproducibility of Results
  • Subarachnoid Hemorrhage
  • Surgery, Computer-Assisted
  • Tomography, X-Ray Computed

Fingerprint Dive into the research topics of 'AngioCT in the management of neurointerventional patients: a prospective, consecutive series with associated dosimetry and resolution data'. Together they form a unique fingerprint.

Cite this