2019年11月5日 · Large vessel occlusion (LVO) is associated with high mortality and poor functional outcome in patients with acute ischemic stroke (AIS). 1,2 Mechanical thrombectomy (MT) is an essential treatment for LVO patients who present within 6 hours of symptom onset and in selected LVO patients presenting 6 to 24 after onset. 3 Because MT is a highly ...

Five hundred twenty consecutive patients with a clinical diagnosis of acute ischemic stroke (49% men; mean age, 72 years; range, 19–100 years) who underwent CTA to evaluate LVO of the proximal anterior circulation at Zuyderland Medical Center between January 2019 and August 2019 were included.

2019年11月4日 · Intracranial anterior circulation LVOs and proximal M2 occlusions can be rapidly and reliably detected by an automated detection tool, which may facilitate intra- and inter-instutional workflows and emergent imaging triage in the care of patients with stroke.

2023年5月31日 · This study addressed the challenge of detecting LVO in CTA scans by treating it as a 3D object detection problem, utilizing the state-of-the-art self-configuring medical object detection method...

2025年3月10日 · To validate JLK-LVO, a software detecting large vessel occlusion (LVO) on computed tomography angiography (CTA), within a multicenter dataset. From 2021 to 2023, we enrolled patients with ischemic stroke who underwent CTA within 24-hour of onset at six university hospitals for validation and calibration datasets and at another university hospital for an independent dataset for testing model ...

We present our robust deep learning-based method for detecting both internal carotid artery (ICA) and middle cerebral artery (MCA) large vessel occlusions (LVO) from computed tomography angiography (CTA) scans. Our proposed two LVO detection models achieved an overall combined accuracy of 90.9% with a sensitivity of 89.8% and specificity of 91.4%.

2024年2月16日 · Computed tomography angiography (CTA), for which a contrast agent is injected to enhance all perfused vascular structures, is commonly used for diagnosis. In fact, automated imaging-based tools to detect LVO using brain CTA have shown to reduce the time for treatment, leading to better clinical outcomes. 3, 4

2019年9月9日 · The LVO detection algorithm evaluated in this study detects hemispheric differences in vessel density within the suprasellar and Sylvian cisterns. Vessel density is affected by the length, caliber, and number (spatial density) of opacified vessels as well as the density of luminal opacification (measured in Hounsfield units).

2022年5月3日 · The CTA LVO algorithm can detect, lateralize and localize large vessel occlusions on CTA head. It has the potential to improve patient outcomes through expediting the stroke treatment pathway.

In this paper, we propose a method named VANet for LVO identification without vessel segmentation from CTA, which is of significant importance for the treatment and prognosis of patients. Firstly, considering the characteristics of LVO and CTA data, we acquire coarse-grained vessel feature to direct the models attention towards vessel area.