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Hamza A. Salim: CTA Collateral Impairment Score Enhances Stroke Prognosis Accuracy
Hamza A. Salim/X
Sep 8, 2025, 14:21

Hamza A. Salim: CTA Collateral Impairment Score Enhances Stroke Prognosis Accuracy

Hamza A. Salim, Post-Doctoral Research Fellow at MD Anderson Cancer Center and Research Collaborator at Johns Hopkins Radiology, has shared a post on X:

”Can a single, simple single-phase CTA score improve stroke outcome prediction?

Our new multicenter study (n=1080), now in JNIS, introduces the CTA Collateral Impairment Score (CCIS): a composite of arterial (Tan) + venous (COVES) collaterals from routine single-phase CTA.

Key findings:
– Favorable outcomes (mRS 0–2): 66% with CCIS 0 vs 17% with CCIS 2
– Mortality: 11% (CCIS 0) vs 36% (CCIS 2)
– CCIS outperformed ASPECTS & occlusion site, and closely matched NIHSS

Many thanks to Dr. Vivek Yedavall for his exceptional mentorship on this project!”

Read the full article here.

Article: Composite arterial and venous collateral score on single-phase CTA predicts 90-day outcomes in anterior circulation large-vessel occlusion stroke

Authors: Hamza Adel Salim, Dhairya A Lakhani, Janet Mei, Manisha Koneru, Aneri Balar, Meisam Hoseinyazdi, Shyam Majmundar, Dylan Wolman, Risheng Xu, Victor Urrutia, Elisabeth B Marsh, Thanh N Nguyen, Judy Huang, David S Liebeskind, Achala Vagal, Adam A Dmytriw, Adrien Guenego, Gregory W Albers, Hanzhang Lu, Kambiz Nael, Argye E Hillis, Rafael Llinas, Max Wintermark, Tobias D Faizy, Jeremy J Heit, Vivek Yedavalli

Hamza A. Salim:

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Achala Vagal Adam A Dmytriw Adrien Guenego Aneri Balar Argye E Hillis CCIS Collateral Collateral Impairment Score CTA David S. Liebeskind Dhairya A Lakhani Dylan Wolman Elisabeth B Marsh Gregory W Albers Hamza Adel Salim Hanzhang Lu Health Hematology Hemostasis Today Janet Mei Jeremy J. Heit Judy Huang Kambiz Nael Large vessel occlusion stroke Manisha Koneru Max Wintermark Medicine Meisam Hoseinyazdi Neurology Rafael Llinas Risheng Xu Shyam Majmundar stroke Thanh N. Nguyen thrombosis Tobias D Faizy Victor Urrutia Vivek Yedavall
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