J 2022

Validation of a machine learning software tool for automated large vessel occlusion detection in patients with suspected acute stroke

CIMFLOVÁ, Petra, Rotem GOLAN, Johanna M OSPEL, Alireza SOJOUDI, Chris DUSZYNSKI et. al.

Basic information

Original name

Validation of a machine learning software tool for automated large vessel occlusion detection in patients with suspected acute stroke

Authors

CIMFLOVÁ, Petra (203 Czech Republic, guarantor, belonging to the institution), Rotem GOLAN, Johanna M OSPEL, Alireza SOJOUDI, Chris DUSZYNSKI, Ibukun ELEBUTE, Houssam EL-HARIRI, Seyed Hossein MOUSAVI, Luis A Souto Maior NETO, Najratun PINKY, Benjamin BELAND, Fouzi BALA, Nima R KASHANI, William HU, Manish JOSHI, Wu QIU and Bijoy K MENON

Edition

NEURORADIOLOGY, NEW YORK, SPRINGER, 2022, 0028-3940

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30224 Radiology, nuclear medicine and medical imaging

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.800

RIV identification code

RIV/00216224:14110/22:00128327

Organization unit

Faculty of Medicine

UT WoS

000800996700001

Keywords in English

Machine learning; Large vessel occlusion; Stroke; Automatic detection

Tags

Tags

International impact, Reviewed
Změněno: 27/1/2023 13:05, Mgr. Tereza Miškechová

Abstract

V originále

Purpose CT angiography (CTA) is the imaging standard for large vessel occlusion (LVO) detection in patients with acute ischemic stroke. StrokeSENS LVO is an automated tool that utilizes a machine learning algorithm to identify anterior large vessel occlusions (LVO) on CTA. The aim of this study was to test the algorithm's performance in LVO detection in an independent dataset. Methods A total of 400 studies (217 LVO, 183 other/no occlusion) read by expert consensus were used for retrospective analysis. The LVO was defined as intracranial internal carotid artery (ICA) occlusion and M1 middle cerebral artery (MCA) occlusion. Software performance in detecting anterior LVO was evaluated using receiver operator characteristics (ROC) analysis, reporting area under the curve (AUC), sensitivity, and specificity. Subgroup analyses were performed to evaluate if performance in detecting LVO differed by subgroups, namely M1 MCA and ICA occlusion sites, and in data stratified by patient age, sex, and CTA acquisition characteristics (slice thickness, kilovoltage tube peak, and scanner manufacturer). Results AUC, sensitivity, and specificity overall were as follows: 0.939, 0.894, and 0.874, respectively, in the full cohort; 0.927, 0.857, and 0.874, respectively, in the ICA occlusion cohort; 0.945, 0.914, and 0.874, respectively, in the M1 MCA occlusion cohort. Performance did not differ significantly by patient age, sex, or CTA acquisition characteristics. Conclusion The StrokeSENS LVO machine learning algorithm detects anterior LVO with high accuracy from a range of scans in a large dataset.