Abstract
Reliable assessment of collateral blood supply is important in acute ischemic stroke. We propose a quantitative method for evaluation of collateral status on CT angiography (CTA). We collected CTA images of 70 patients from MR CLEAN with an occlusion in the M1 branch. Our proposed quantitative collateral score (qCS) consisted of atlas-based territory-at-risk identification and vessel segmentation using a Hessian-based filter. Ground truth was obtained by manual collateral scoring (mCS). Accuracy was evaluated by analysis of Spearman ρ and one-way ANOVA. Correlation of mCS and qCS with tissue death and functional outcome was assessed. Receiver operating characteristics curves of mCS and qCS were analyzed to distinguish favorable from unfavorable outcome. qCS strongly correlated with mCS and showed reliable correlations with tissue death and functional outcome. qCS showed higher discriminative power between favorable and unfavorable compared to mCS, indicating potential clinical value.
| Original language | English |
|---|---|
| Title of host publication | Molecular Imaging, Reconstruction and Analysis of Moving Body Organs, and Stroke Imaging and Treatment |
| Subtitle of host publication | 5th International Workshop, CMMI 2017 2nd International Workshop, RAMBO 2017 and 1st International Workshop, SWITCH 2017 Held in Conjunction with MICCAI 2017, Proceedings |
| Editors | M. Jorge Cardoso, Tal Arbel, Fei Gao |
| Place of Publication | Cham |
| Publisher | Springer |
| Pages | 176-184 |
| Number of pages | 9 |
| ISBN (Electronic) | 978-3-319-67564-0 |
| ISBN (Print) | 978-3-319-67563-3 |
| DOIs | |
| Publication status | Published - 1 Jan 2017 |
| Event | 1st International Stroke Workshop on Imaging and Treatment Challenges, SWITCH 2017 - Quebec City, Canada Duration: 14 Sept 2017 → 14 Sept 2017 Conference number: 1 |
Publication series
| Name | Lecture Notes in Computer Science |
|---|---|
| Publisher | Springer |
| Volume | 10555 |
| ISSN (Print) | 0302-9743 |
| ISSN (Electronic) | 1611-3349 |
| Name | Image Processing, Computer Vision, Pattern Recognition, and Graphics |
|---|---|
| Publisher | Springer |
Workshop
| Workshop | 1st International Stroke Workshop on Imaging and Treatment Challenges, SWITCH 2017 |
|---|---|
| Abbreviated title | SWITCH |
| Country/Territory | Canada |
| City | Quebec City |
| Period | 14/09/17 → 14/09/17 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Acute ischemic stroke
- Automatic assessment
- Collateral status
- CT angiography
- Endovascular therapy
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