TY - JOUR
T1 - Cost-effectiveness of CT perfusion for the detection of large vessel occlusion acute ischemic stroke followed by endovascular treatment
T2 - a model-based health economic evaluation study
AU - van Voorst, Henk
AU - Hoving, Jan W.
AU - Koopman, Miou S.
AU - Daems, Jasper D.
AU - Peerlings, Daan
AU - Buskens, Erik
AU - Lingsma, Hester F.
AU - Beenen, Ludo F. M.
AU - de Jong, Hugo W. A. M.
AU - Berkhemer, Olvert A.
AU - van Zwam, Wim H.
AU - Roos, Yvo B. W. E. M.
AU - van Walderveen, Marianne A. A.
AU - van den Wijngaard, Ido
AU - Dippel, Diederik W. J.
AU - Yoo, Albert J.
AU - Campbell, Bruce C. V.
AU - Kunz, Wolfgang G.
AU - Emmer, Bart J.
AU - Majoie, Charles B. L. M.
N1 - Funding Information: This study was partly funded by the CONTRAST consortium and a grant from Leading the Change (ZonMW). The CONTRAST consortium is supported by Netherlands Cardiovascular Research Initiative (CVON), an initiative of the Dutch Heart Foundation, the Brain Foundation Netherlands, Medtronic and Cerenovus. The MR CLEAN Registry was partly funded by the TWIN Foundation and by Erasmus MC University Medical Center, Maastricht University Medical Center, and Amsterdam UMC. Funding Information: WHvZ reports personal fees from Codman and from Stryker. DWJD report grants from the Dutch Heart Foundation, AngioCare, Medtronic/Covidien/EV3, MEDAC/LAMEPRO, Penumbra, Top Medical/Concentric, Stryker, and Cerenovus; consultation fees from Stryker, Bracco Imaging, and Servier, received by the Erasmus University Medical Centre outside this project. CBLMM reports grants from TWIN, during the conduct of the study and grants from CVON/Dutch Heart Foundation, European Commission, Dutch Health Evaluation Program, and from Stryker outside this project (paid to institution) and is shareholder of Nicolab. AJY reports Research grants from Medtronic, Cerenovus, Penumbra, Stryker, and Genentech. Consultant for Penumbra, Cerenovus, Nicolab, Philips, Vesalio, Zoll Circulation, and NIH/NINDS. YR is a shareholder of Nicolab. Equity interests in Insera Therapeutics and Nicolab. All other contributors report no conflicts of interest. Publisher Copyright: © 2023, The Author(s).
PY - 2023
Y1 - 2023
N2 - Objectives: CT perfusion (CTP) has been suggested to increase the rate of large vessel occlusion (LVO) detection in patients suspected of acute ischemic stroke (AIS) if used in addition to a standard diagnostic imaging regime of CT angiography (CTA) and non-contrast CT (NCCT). The aim of this study was to estimate the costs and health effects of additional CTP for endovascular treatment (EVT)–eligible occlusion detection using model-based analyses. Methods: In this Dutch, nationwide retrospective cohort study with model-based health economic evaluation, data from 701 EVT-treated patients with available CTP results were included (January 2018–March 2022; trialregister.nl:NL7974). We compared a cohort undergoing NCCT, CTA, and CTP (NCCT + CTA + CTP) with a generated counterfactual where NCCT and CTA (NCCT + CTA) was used for LVO detection. The NCCT + CTA strategy was simulated using diagnostic accuracy values and EVT effects from the literature. A Markov model was used to simulate 10-year follow-up. We adopted a healthcare payer perspective for costs in euros and health gains in quality-adjusted life years (QALYs). The primary outcome was the net monetary benefit (NMB) at a willingness to pay of €80,000; secondary outcomes were the difference between LVO detection strategies in QALYs (ΔQALY) and costs (ΔCosts) per LVO patient. Results: We included 701 patients (median age: 72, IQR: [62–81]) years). Per LVO patient, CTP-based occlusion detection resulted in cost savings (ΔCosts median: € − 2671, IQR: [€ − 4721; € − 731]), a health gain (ΔQALY median: 0.073, IQR: [0.044; 0.104]), and a positive NMB (median: €8436, IQR: [5565; 11,876]) per LVO patient. Conclusion: CTP-based screening of suspected stroke patients for an endovascular treatment eligible large vessel occlusion was cost-effective. Clinical relevance statement.: Although CTP-based patient selection for endovascular treatment has been recently suggested to result in worse patient outcomes after ischemic stroke, an alternative CTP-based screening for endovascular treatable occlusions is cost-effective. Key Points: • Using CT perfusion to detect an endovascular treatment-eligible occlusions resulted in a health gain and cost savings during 10 years of follow-up. • Depending on the screening costs related to the number of patients needed to image with CT perfusion, cost savings could be considerable (median: € − 3857, IQR: [€ − 5907; € − 1916] per patient). • As the gain in quality adjusted life years was most affected by the sensitivity of CT perfusion-based occlusion detection, additional studies for the diagnostic accuracy of CT perfusion for occlusion detection are required.
AB - Objectives: CT perfusion (CTP) has been suggested to increase the rate of large vessel occlusion (LVO) detection in patients suspected of acute ischemic stroke (AIS) if used in addition to a standard diagnostic imaging regime of CT angiography (CTA) and non-contrast CT (NCCT). The aim of this study was to estimate the costs and health effects of additional CTP for endovascular treatment (EVT)–eligible occlusion detection using model-based analyses. Methods: In this Dutch, nationwide retrospective cohort study with model-based health economic evaluation, data from 701 EVT-treated patients with available CTP results were included (January 2018–March 2022; trialregister.nl:NL7974). We compared a cohort undergoing NCCT, CTA, and CTP (NCCT + CTA + CTP) with a generated counterfactual where NCCT and CTA (NCCT + CTA) was used for LVO detection. The NCCT + CTA strategy was simulated using diagnostic accuracy values and EVT effects from the literature. A Markov model was used to simulate 10-year follow-up. We adopted a healthcare payer perspective for costs in euros and health gains in quality-adjusted life years (QALYs). The primary outcome was the net monetary benefit (NMB) at a willingness to pay of €80,000; secondary outcomes were the difference between LVO detection strategies in QALYs (ΔQALY) and costs (ΔCosts) per LVO patient. Results: We included 701 patients (median age: 72, IQR: [62–81]) years). Per LVO patient, CTP-based occlusion detection resulted in cost savings (ΔCosts median: € − 2671, IQR: [€ − 4721; € − 731]), a health gain (ΔQALY median: 0.073, IQR: [0.044; 0.104]), and a positive NMB (median: €8436, IQR: [5565; 11,876]) per LVO patient. Conclusion: CTP-based screening of suspected stroke patients for an endovascular treatment eligible large vessel occlusion was cost-effective. Clinical relevance statement.: Although CTP-based patient selection for endovascular treatment has been recently suggested to result in worse patient outcomes after ischemic stroke, an alternative CTP-based screening for endovascular treatable occlusions is cost-effective. Key Points: • Using CT perfusion to detect an endovascular treatment-eligible occlusions resulted in a health gain and cost savings during 10 years of follow-up. • Depending on the screening costs related to the number of patients needed to image with CT perfusion, cost savings could be considerable (median: € − 3857, IQR: [€ − 5907; € − 1916] per patient). • As the gain in quality adjusted life years was most affected by the sensitivity of CT perfusion-based occlusion detection, additional studies for the diagnostic accuracy of CT perfusion for occlusion detection are required.
KW - Diagnosis
KW - Four-dimensional computed tomography
KW - Health Care Economics and Organizations
KW - Ischemic stroke
KW - Thrombectomy
UR - http://www.scopus.com/inward/record.url?scp=85171598701&partnerID=8YFLogxK
U2 - https://doi.org/10.1007/s00330-023-10119-y
DO - https://doi.org/10.1007/s00330-023-10119-y
M3 - Article
C2 - 37728778
SN - 0938-7994
JO - European Radiology
JF - European Radiology
ER -