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Angiographic CT with intravenous contrast agent application for monitoring of intracranial flow diverting stents

  • Interventional Neuroradiology
  • Published:
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Abstract

Introduction

Intracranial flow diverting devices are increasingly used to treat cerebral aneurysms. A reliable, non-invasive follow-up modality would be desirable. Our aim was to compare intra-arterial digital subtraction angiography (ia DSA) to angiographic computed tomography with intravenous contrast agent application (iv ACT) in the visualisation of flow diverting devices and aneurysm lumina.

Methods

Follow-up monitoring by iv ACT (n = 36) and ia DSA (n = 25) in 14 patients treated with flow diverting devices for intracranial aneurysms was evaluated retrospectively. Images were evaluated by two neuroradiologists in anonymous consensus reading regarding the device deployment, wall apposition, neck coverage of the aneurysm, opacification of the vessel and device lumen, as well as the degree of aneurysm occlusion.

Results

Corresponding ia DSA and iv ACT images were scored identically in all patients regarding the stent deployment, wall apposition and neck coverage, as well as the degree of aneurysm occlusion and patency status of the device and parent artery. Opacification of the parent vessel lumen and perfused parts of the aneurysm was considered slightly inferior for iv ACT in comparison with ia DSA (seven of 36 cases), without impact on diagnosis.

Conclusions

We demonstrated the feasibility and diagnostic value of iv ACT in follow-up imaging of intracranial flow diverting devices. Due to its high spatial resolution and non-invasive character, this novel technique might become a valuable imaging modality in these patients.

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Conflict of interest

We declare that we have no conflict of interest.

Author information

Authors and Affiliations

  1. Department of Neuroradiology, University of Erlangen–Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany

    Marc Saake, Tobias Struffert, Philipp Goelitz, Sabine Ott & Arnd Doerfler

  2. Department of Neurology, University of Erlangen–Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany

    Frank Seifert

  3. Department of Neurosurgery, University of Erlangen–Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany

    Oliver Ganslandt

Authors
  1. Marc Saake
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  2. Tobias Struffert
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  3. Philipp Goelitz
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  4. Sabine Ott
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  5. Frank Seifert
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  6. Oliver Ganslandt
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  7. Arnd Doerfler
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Corresponding author

Correspondence to Marc Saake.

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Author contributions

The following the authors’ contributions to the study: guarantor of integrity of the entire study (MS and AD); study concepts (MS, TS and AD); study design (MS, TS and AD); definition of intellectual content (MS, TS and AD); literature research (MS, FS and SO); clinical studies (n.a.); experimental studies (n.a.); data acquisition (MS, TS, SO and PG); data analysis (MS and PG); statistical analysis (MS); manuscript preparation (MS, TS and AD); manuscript editing (MS); and manuscript review (TS, FS, OG and AD).

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Saake, M., Struffert, T., Goelitz, P. et al. Angiographic CT with intravenous contrast agent application for monitoring of intracranial flow diverting stents. Neuroradiology 54, 727–735 (2012). https://doi.org/10.1007/s00234-011-0965-9

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  • DOI: https://doi.org/10.1007/s00234-011-0965-9

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