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Original research
Transradial cerebral angiography: techniques and outcomes
  1. Brian M Snelling1,
  2. Samir Sur1,
  3. Sumedh S Shah1,
  4. Priyank Khandelwal1,
  5. Justin Caplan1,
  6. Rianna Haniff1,
  7. Robert M Starke1,2,
  8. Dileep R Yavagal3,
  9. Eric C Peterson1
  1. 1 Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
  2. 2 Department of Radiology, University of Miami Miller School of Medicine, Miami, Florida, USA
  3. 3 Department of Neurology, University of Miami Miller, School of Medicine, Miami, Florida, USA
  1. Correspondence to Dr Eric C Peterson, Department of Neurological Surgery, University of Miami School of Medicine, Miami, FL 33136, USA; ericpete{at}


Background Despite several retrospective studies analyzing the safety and efficacy of transradial access (TRA) versus transfemoral access (TFA) for cerebral angiography, this transition for neurointerventional procedures has been gradual. Nonetheless, based on our positive initial institutional experience with TRA for mechanical thrombectomy in acute ischemic stroke patients, we have started transitioning more of our cerebral angiography cases to TRA. Here we present our single institution experience.

Methods We performed a retrospective review of patients receiving TRA cerebral angiography at our institution between January 2016 and February 2017. We present our experience transitioning from TFA to TRA, including our criteria for patient selection, technical nuances, patient experience, complications, and operator learning curve.

Results We included 148 angiograms performed in 141 people by one of four operators. No major complications were observed, and the technical success of the procedures was consistent with those of TFA. Marked improvement in operator efficiency was achieved in a short number of cases during this transition when looking at operator proficiency as a function of angiograms performed and days of exposure to TRA (4.3 vs 3.6 min/vessel, P<0.05).

Conclusions Safety and efficiency can be preserved while transitioning to TRA. While further investigation is necessary to support transition to TRA, these findings should call for a re-evaluation of the role of TRA in catheter cerebral angiography.

  • angiography
  • endovascular
  • radial
  • stroke
  • transradial
  • thrombectomy
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  • BMS and SS contributed equally.

  • Contributors All authors contributed to the conception, data gathering, and drafting of the manuscript. RMS performed the statistical analysis. RMS, DRY, and ECP provided manuscript oversight and administrative support. All authors critically reviewed the manuscript and approved its final submission.

  • Competing interests None declared.

  • Ethics approval The study was approved by the institutional review board of the University of Miami Miller School of Medicine, Miami, Florida, USA.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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