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Preprocedural determination of an occlusion pathomechanism in endovascular treatment of acute stroke: a machine learning-based decision
Conclusions An ML-PM could accurately determine an occlusion pathomechanism with common preprocedural findings. A decision flowchart consisting of the four most influential findings was clinically applicable and superior to single common preprocedural findings for determining an occlusion pathomechanism.
Source: Journal of NeuroInterventional Surgery - August 29, 2023 Category: Neurosurgery Authors: Baek, J.-H., Kim, B. M., Kim, D. J., Heo, J. H., Nam, H. S., Kim, Y. D., Rho, M. H., Chung, P.-W., Won, Y. S., Chung, Y. Tags: Ischemic stroke Source Type: research

O32/312 Continuous evaluation of the ESMINT/EYMINT E-fellowship as a European tele-learning network for neurointerventional trainees
ConclusionTele-observerships may supplement neurointerventional hands-on training in particular of low-frequency high-complexity procedures.Disclosure of InterestMatthias Bechstein: Nothing to discloseHelena Guerreiro: Nothing to discloseTeresa Nawka: Nothing to discloseVladimir Kalousek: Nothing to discloseJens Fiehler: Nothing to discloseUta Hanning: Nothing to disclose.
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Bechstein, M., Guerreiro, H., Nawka, M. T., Kalousek, V., Fiehler, J., Paula Hanning, U. M. Tags: 3.3 OTHER - Miscellaneous Source Type: research

P040/41 Imaging study in stroke diagnosis and treatment in a referral center Chile
ConclusionAs a conclusion, different topics of obtaining and observing images in Stroke are obtained. Either CT, MRA, Cerebral Angiography. Both nurses and technicians should know some generalities and topics of nomenclature, neuroanatomy, general and specific characteristics of each of the imaging techniques that we want to share for this ETMINT 2023 seminar.Disclosure of InterestNothing to disclose
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Nunez, F. B. Tags: 4. Ischemic stroke Source Type: research

P041/42 Imaging study in stroke diagnosis and treatment in a referral center in Chile
ConclusionAs a conclusion, different topics of obtaining and observing images in Stroke are obtained. Either CT, MRA, Cerebral Angiography. Both nurses and technicians should know some generalities and topics of nomenclature, neuroanatomy, general and specific characteristics of each of the imaging techniques that we want to share for this ETMINT 2023 seminar.Disclosure of InterestNothing to disclose
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Nunez, F. B. Tags: 4. Ischemic stroke Source Type: research

P-008 Probabilistic ensemble learning for prediction of stroke thrombectomy outcomes from the neurovascular quality initiative-quality outcomes database (NVQI-QOD) registry
ConclusionsThis study demonstrates the utility of probabilistic ensemble learning in clinical decision-making and prognosis. It can provide robust predictions as well as quantify data uncertainty. Our results regarding NIHSS changes reinforce the substantial benefits of MT, that can improve outcomes in nearly half of patients. The degree of disability relevant to the 90-day follow-up mRS can be determined by probabilistic learning available as early as discharge.Disclosures C. Zhou: None. S. Faruqui: None. A. Patel: None. R. Abdalla: None. A. Shaibani: None. M. Potts: None. B. Jahromi: None. S. Ansari: None. D. Cantrell: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Zhou, C., Faruqui, S., Patel, A., Abdalla, R., Shaibani, A., Potts, M., Jahromi, B., Ansari, S., Cantrell, D. Tags: SNIS 20th annual meeting oral poster abstracts Source Type: research

Thrombosis origin identification of cardioembolism and large artery atherosclerosis by distinct metabolites
Conclusions Six metabolites as potential predictors for distinguishing between cerebral thrombi of CE and LAA origin were identified. The results are useful for understanding the pathogenesis and for secondary stroke prevention.
Source: Journal of NeuroInterventional Surgery - June 16, 2023 Category: Neurosurgery Authors: Li, W., Bai, X., Hao, J., Xu, X., Lin, F., Jiang, Q., Ding, C., Dai, G., Peng, F., Zhang, M., Feng, Y., Wang, J., Chen, X., Xue, T., Guo, X., Fu, Z., Chen, W.-h., Zhang, L., Wang, C., Jiao, L. Tags: Basic science Source Type: research

Automated detection of arterial landmarks and vascular occlusions in patients with acute stroke receiving digital subtraction angiography using deep learning
Conclusion These results may serve as an unbiased standard for clinical stroke trials, as optimal standardization would be useful for core laboratories in endovascular thrombectomy studies, and also expedite decision-making during DSA-based procedures.
Source: Journal of NeuroInterventional Surgery - May 16, 2023 Category: Neurosurgery Authors: Khankari, J., Yu, Y., Ouyang, J., Hussein, R., Do, H. M., Heit, J. J., Zaharchuk, G. Tags: Ischemic stroke Source Type: research

Impedance-based sensors discriminate among different types of blood thrombi with very high specificity and sensitivity
Conclusions Combining EIS measurements with machine learning provides a highly effective approach for discriminating among different thrombus types and liquid blood. These findings raise the possibility of developing a probe-like device (eg, a neurovascular guidewire) integrating an impedance-based sensor. This sensor, placed in the distal part of the smart device, would allow the characterization of the probed thrombus on contact. The information could help physicians identify optimal thrombectomy strategies to improve outcomes for stroke patients.
Source: Journal of NeuroInterventional Surgery - May 16, 2023 Category: Neurosurgery Authors: Messina, P., Garcia, C., Rambeau, J., Darcourt, J., Balland, R., Carreel, B., Cottance, M., Gusarova, E., Lafaurie-Janvore, J., Lebedev, G., Bozsak, F., Barakat, A. I., Payrastre, B., Cognard, C. Tags: Open access, Ischemic stroke Source Type: research

Machine learning and acute stroke imaging
Conclusions ML in acute ischemic stroke imaging has already made tremendous headway. Additional applications and further integration with clinical care is inevitable. Thus, facility with these approaches is critical for the neurointerventional clinician.
Source: Journal of NeuroInterventional Surgery - January 11, 2023 Category: Neurosurgery Authors: Sheth, S. A., Giancardo, L., Colasurdo, M., Srinivasan, V. M., Niktabe, A., Kan, P. Tags: Neuroimaging Source Type: research

P-029 Interpretable machine learning modeling for thrombectomy outcome prediction in ischemic stroke
ConclusionMachine learning applied to quantifiable image features from CT and CTA alongside basic clinical characteristics constitutes a promising automated method for predicting stroke prognosis. Our interpretable model allows understanding of which features contribute the most to post-thrombectomy outcome prediction and which feature values the model used to individually predict each patient outcome.Abstract P-029 Figure 1Disclosures M. Jabal: None. O. Joly: 5; C; Brainomix. D. Kallmes: None. G. Harston: 4; C; Brainomix. 5; C; Brainomix. A. Rabinstein: None. T. Huynh: None. W. Brinjikji: None.
Source: Journal of NeuroInterventional Surgery - July 23, 2022 Category: Neurosurgery Authors: Jabal, M., Joly, O., Kallmes, D., Harston, G., Rabinstein, A., Huynh, T., Brinjikji, W. Tags: SNIS 19th annual meeting oral poster abstracts Source Type: research

Diagnostic performance of an algorithm for automated large vessel occlusion detection on CT angiography
Conclusion The algorithm provided a high detection rate for proximal LVO, but performance varied significantly by occlusion location. Detection of M2 occlusion needs further improvement.
Source: Journal of NeuroInterventional Surgery - July 14, 2022 Category: Neurosurgery Authors: Luijten, S. P. R., Wolff, L., Duvekot, M. H. C., van Doormaal, P.-J., Moudrous, W., Kerkhoff, H., Lycklama a Nijeholt, G. J., Bokkers, R. P. H., Yo, L. S. F., Hofmeijer, J., van Zwam, W. H., van Es, A. C. G. M., Dippel, D. W. J., Roozenbeek, B., van der L Tags: Open access, Vascular neurology Source Type: research

Optimal thresholds to predict long-term outcome after complete endovascular recanalization in acute anterior ischemic stroke
Conclusions After complete recanalization in acute anterior circulation ischemic stroke, a good long-term outcome could be accurately predicted reaching NIHSS score ≤5 after 24 hours.
Source: Journal of NeuroInterventional Surgery - November 18, 2021 Category: Neurosurgery Authors: Neuberger, U., Vollmuth, P., Nagel, S., Schönenberger, S., Weyland, C. S., Gumbinger, C., Ringleb, P. A., Bendszus, M., Pfaff, J. A. R., Möhlenbruch, M. A. Tags: Ischemic stroke Source Type: research

Stent retrievers and acute stroke treatment: a rapid learning curve for experienced neurointerventional surgeons
A study by Sheth et al1 has examined the safety and efficacy of thrombectomy for acute ischemic stroke (AIS) using the Solitaire stent retriever device for patients treated in the roll-in phase of the Solitaire With the Intention For Thrombectomy (SWIFT) trial. This is a well designed study aimed at determining the learning curve for operators who had not previously used Solitaire for the treatment of emergent large vessel occlusion (ELVO). The roll-in period entailed treatment of two patients with the Solitaire device, before proceeding to the randomized phase of the trial. This represented the first clinical use of the s...
Source: Journal of NeuroInterventional Surgery - January 12, 2017 Category: Neurosurgery Authors: Mack, W. J. Tags: Commentary Source Type: research

Trends in mortality following mechanical thrombectomy for the treatment of acute ischemic stroke in the USA
Conclusions Utilization of MT represents a small percentage of stroke cases, although the trend is increasing. Mortality following MT has been showing a steady decline over the past 5 years. This may be a result of a learning curve, improved patient selection, and/or device improvements. Randomized trials remain essential to evaluate the potential benefit of endovascular devices and identify the most appropriate patients.
Source: Journal of NeuroInterventional Surgery - April 13, 2016 Category: Neurosurgery Authors: Villwock, M. R., Padalino, D. J., Deshaies, E. M. Tags: Ischemic stroke Source Type: research

Rapid learning curve for Solitaire FR stent retriever therapy: evidence from roll-in and randomised patients in the SWIFT trial
Conclusions Thrombectomy in AIS using the Solitaire stent retriever device can be performed safely and effectively when used by experienced neurointerventionalists without previous experience with the device. Trial registration number The SWIFT study is registered with ClinicalTrials.gov, number NCT 01054560.
Source: Journal of NeuroInterventional Surgery - March 15, 2016 Category: Neurosurgery Authors: Sheth, S. A., Jahan, R., Levy, E. I., Jovin, T. G., Baxter, B., Nogueira, R. G., Clark, W., Budzik, R., Zaidat, O. O., Saver, J. L., for the SWIFT Trialists Tags: Ischemic stroke Source Type: research

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