Skip to main content

Advertisement

Log in

Radiology workload in clinical implementation of thrombectomy for acute ischemic stroke: experience from The Netherlands

  • Interventional Neuroradiology
  • Published:
Neuroradiology Aims and scope Submit manuscript

Abstract

Purpose

To investigate the number of acute stroke patients undergoing CT angiography (CTA) for suspected large vessel occlusion (LVO) and those eligible for thrombectomy in relation to the population.

Methods

Consecutive patients in a Western population who underwent CTA for suspected LVO of the proximal anterior circulation between January and August 2019 were included. The date and time of CTA and the number of patients eligible for thrombectomy were assessed. Our hospital’s service area population was estimated using the Central Bureau for Statistics data. One-way analysis of variance with post-hoc tests and chi-squared tests were used for statistical analyses.

Results

Of 520 patients (49% males, mean age of 72 years) undergoing CTA, 84 (16.2%) were eligible for thrombectomy. Our hospital’s service area population was estimated at 420,000. Therefore, 3.6 CTA scans were performed and 0.6 patients were eligible for thrombectomy per 100,000 people per week. The number of patients undergoing CTA and the number of patients eligible for thrombectomy both did not significantly differ between any days of the week (P > 0.05). A total of 236 (45%) and 284 patients (55%) underwent CTA during office and on-call hours, respectively. The percentage of patients eligible for thrombectomy did not significantly differ between office and on-call hours (P = 0.834).

Conclusion

Our study estimated the number of stroke patients undergoing CTA for suspected LVO and those eligible for thrombectomy in relation to the population. Numbers were essentially the same throughout the week, and during office and on-call hours. Our data can be used to make adequate staffing plans.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2

Similar content being viewed by others

References

  1. GBD 2016 Neurology Collaborators (2019) Global, regional, and national burden of neurological disorders, 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016. Lancet Neurol 18:459–480

  2. World Stroke Organization. Facts and figures about stroke. https://www.world-stroke.org/component/content/article/16-forpatients/84-facts-and-figures-about-stroke Accessed 8 Dec 2019

  3. De Keyser J, Gdovinová Z, Uyttenboogaart M, Vroomen PC, Luijckx GJ (2007) Intravenous alteplase for stroke: beyond the guidelines and in particular clinical situations. Stroke 38:2612–2618

    Article  Google Scholar 

  4. Hacke W, Kaste M, Bluhmki E, Brozman M, Dávalos A, Guidetti D, Larrue V, Lees KR, Medeghri Z, Machnig T, Schneider D, von Kummer R, Wahlgren N, Toni D, Investigators ECASS (2008) Thrombolysis with alteplase 3 to 4.5 hours after acute ischemic stroke. N Engl J Med 359:1317–1329

    Article  CAS  Google Scholar 

  5. Berkhemer OA, Majoie CB, Dippel DW, Investigators MRCLEAN (2015) Endovascular therapy for ischemic stroke. N Engl J Med 372:2363

    Article  Google Scholar 

  6. van den Berg LA, Dijkgraaf MG, Berkhemer OA, Fransen PS, Beumer D, Lingsma HF, Majoie CB, Dippel DW, van der Lugt A, van Oostenbrugge RJ, van Zwam WH, Roos YB, Investigators MRCLEAN (2017) Two-year outcome after endovascular treatment for acute ischemic stroke. N Engl J Med 376:1341–1349

    Article  Google Scholar 

  7. Goyal M, Menon BK, van Zwam WH, Dippel DW, Mitchell PJ, Demchuk AM, Dávalos A, Majoie CB, van der Lugt A, de Miquel MA, Donnan GA, Roos YB, Bonafe A, Jahan R, Diener HC, van den Berg LA, Levy EI, Berkhemer OA, Pereira VM, Rempel J, Millán M, Davis SM, Roy D, Thornton J, Román LS, Ribó M, Beumer D, Stouch B, Brown S, Campbell BC, van Oostenbrugge RJ, Saver JL, Hill MD, Jovin TG; HERMES collaborators (2016) Endovascular thrombectomy after large-vessel ischaemic stroke: a meta-analysis of individual patient data from five randomised trials. Lancet 387:1723–1731

  8. Almekhlafi MA, Kunz WG, Menon BK, McTaggart RA, Jayaraman MV, Baxter BW, Heck D, Frei D, Derdeyn CP, Takagi T, Aamodt AH, Fragata IMR, Hill MD, Demchuk AM, Goyal M (2019) Imaging of patients with suspected large-vessel occlusion at primary stroke centers: available modalities and a suggested approach. AJNR Am J Neuroradiol 40:396–400

    CAS  PubMed  Google Scholar 

  9. Centraal Bureau voor de Statistiek. https://www.cbs.nl/ Accessed 8 Dec 2019

  10. Bhargavan M, Kaye AH, Forman HP, Sunshine JH (2009 Aug) Workload of radiologists in United States in 2006-2007 and trends since 1991-1992. Radiology. 252(2):458–467

    Article  Google Scholar 

  11. McDonald RJ, Schwartz KM, Eckel LJ, Diehn FE, Hunt CH, Bartholmai BJ, Erickson BJ, Kallmes DF (2015) The effects of changes in utilization and technological advancements of cross-sectional imaging on radiologist workload. Acad Radiol 22:1191–1198

    Article  Google Scholar 

  12. Chokshi FH, Hughes DR, Wang JM, Mullins ME, Hawkins CM, Duszak R Jr (2015) Diagnostic radiology resident and fellow workloads: a 12-year longitudinal trend analysis using national Medicare aggregate claims data. J Am Coll Radiol 12:664–669

    Article  Google Scholar 

  13. Herron J, Reynolds JH (2006) Trends in the on-call workload of radiologists. Clin Radiol 61:91–96

    Article  CAS  Google Scholar 

  14. Vagal A, Meganathan K, Kleindorfer DO, Adeoye O, Hornung R, Khatri P (2014) Increasing use of computed tomographic perfusion and computed tomographic angiograms in acute ischemic stroke from 2006 to 2010. Stroke 45:1029–1034

    Article  Google Scholar 

  15. Zubkov AY, Uschmann H, Rabinstein AA (2008) Rate of arterial occlusion in patients with acute ischemic stroke. Neurol Res 30:835–838

    Article  Google Scholar 

  16. Kummer BR, Gialdini G, Sevush JL, Kamel H, Patsalides A, Navi BB (2016) External validation of the Cincinnati Prehospital Stroke Severity Scale. J Stroke Cerebrovasc Dis 25:1270–1274

    Article  Google Scholar 

  17. Rai AT, Seldon AE, Boo S, Link PS, Domico JR, Tarabishy AR, Lucke-Wold N, Carpenter JS (2017) A population-based incidence of acute large vessel occlusions and thrombectomy eligible patients indicates significant potential for growth of endovascular stroke therapy in the USA. J Neurointerv Surg 9:722–726

    Article  Google Scholar 

  18. Rai AT, Domico JR, Buseman C, Tarabishy AR, Fulks D, Lucke-Wold N, Boo S, Carpenter JS (2018) A population-based incidence of M2 strokes indicates potential expansion of large vessel occlusions amenable to endovascular therapy. J Neurointerv Surg 10:510–515

    Article  Google Scholar 

  19. Wilson TA, Leslie-Mazwi T, Hirsch JA, Frey C, Kim TE, Spiotta AM, Leacy R, Mocco J, Albuquerque FC, Ducruet AF, Cheema A, Arthur A, Srinivasan VM, Kan P, Mokin M, Dumont T, Rai A, Singh J, Wolfe SQ, Fargen KM (2018) A multicenter study evaluating the frequency and time requirement of mechanical thrombectomy. J Neurointerv Surg 10:235–239

    Article  Google Scholar 

  20. Smith EE, Kent DM, Bulsara KR, Leung LY, Lichtman JH, Reeves MJ, Towfighi A, Whiteley WN, Zahuranec DB; American Heart Association Stroke Council (2018) Accuracy of prediction instruments for diagnosing large vessel occlusion in individuals with suspected stroke: a systematic review for the 2018 Guidelines for the Early Management of Patients With Acute Ischemic Stroke. Stroke 49:e111-e122

  21. Wagemans BA, van Zwam WH, Nelemans PJ, van Oostenbrugge RJ, Postma AA (2017) 4D-CTA improves diagnostic certainty and accuracy in the detection of proximal intracranial anterior circulation occlusion in acute ischemic stroke. PLoS One 12:e0172356

    Article  Google Scholar 

  22. Menon BK, Campbell BC, Levi C, Goyal M (2015) Role of imaging in current acute ischemic stroke workflow for endovascular therapy. Stroke 46:1453–1461

    Article  CAS  Google Scholar 

  23. Deipolyi AR, Hamberg LM, Gonzaléz RG, Hirsch JA, Hunter GJ (2015) Diagnostic yield of emergency department arch-to-vertex CT angiography in patients with suspected acute stroke. AJNR Am J Neuroradiol 36:265–268

    Article  CAS  Google Scholar 

  24. Crockett MT, Murphy B, Smith J, Kavanagh EC (2015) Prevalence and clinical significance of extravascular incidental findings in patients undergoing CT cervico-cerebral angiography. Eur J Radiol 84:1569–1573

    Article  Google Scholar 

  25. Mulder MJHL, Jansen IGH, Goldhoorn RB, Venema E, Chalos V, Compagne KCJ, Roozenbeek B, Lingsma HF, Schonewille WJ, van den Wijngaard IR, Boiten J, Albert Vos J, Roos YBWE, van Oostenbrugge RJ, van Zwam WH, Majoie CBLM, van der Lugt A, Dippel DWJ, Registry Investigators MRCLEAN (2018) Time to endovascular treatment and outcome in acute ischemic stroke: MR CLEAN Registry results. Circulation 138:232–240

    Article  Google Scholar 

  26. The Royal College of Radiologists (2012) Clinical radiology workload: guidance on radiologists’ reporting figures. The Royal College of Radiologists, London

    Google Scholar 

  27. Bevolkingsteller - Centraal Bureau voor de Statistiek. https://www.cbs.nl/nl-nl/visualisaties/bevolkingsteller Accessed 8 Dec 2019

  28. Amukotuwa SA, Straka M, Dehkharghani S, Bammer R (2019) Fast automatic detection of large vessel occlusions on CT angiography. Stroke 50:3431–3438

    Article  Google Scholar 

  29. Rubin DL (2019) Artificial intelligence in imaging: the radiologist’s role. J Am Coll Radiol 16:1309–1317

    Article  Google Scholar 

  30. Von Piekartz H, De Ruiter M. Zuid-Limburg is de ongezondste regio van Nederland. Dat moet anders. De Volkskrant, August 23, 2019. https://www.volkskrant.nl/nieuws-achtergrond/zuid-limburg-is-de-ongezondste-regio-van-nederland-dat-moet-anders~babeeade/?referer=https%3A%2F%2F Accessed 8 Dec 2019

Download references

Funding

No funding was received for this study.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Robert M. Kwee.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in the studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

This retrospective study was approved by the institutional review board of our hospital (IRB number Z2019102) and patients’ consents were waived.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Fasen, B.A.C.M., Heijboer, R.J.J., Hulsmans, FJ.H. et al. Radiology workload in clinical implementation of thrombectomy for acute ischemic stroke: experience from The Netherlands. Neuroradiology 62, 877–882 (2020). https://doi.org/10.1007/s00234-020-02416-w

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00234-020-02416-w

Keywords

Navigation