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Ognard, Julien

https://orcid.org/0000-0003-4495-7464

Mayo Clinic

Inserm

Citations 24

E-243 Magnetizable flow diverters can magnetically capturing and retain blood outgrowth endothelial cells in rabbit arteries
Oliver, A, Cortese, Jonathan, Bayraktar, Evren , Zielonka, Aleksandra M, Kallmes, D, Teffth, B, Kadirvel, Ramanathan , Ognard, Julien , Cortese, Jonathan , Hajj, G El , Teffth, B

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A259-A260

10.1136/jnis-2025-snis.358 Get It

E-228 Diagnostic accuracy of flat panel computed tomography for acute stroke: a systematic review and meta-analysis
Kadirvel, R, Brinjikji, W, Kallmes, D, Ali, Mohamed Ahmed , Ghozy, Sherief , Jazayeri, S, Ali, Mohamed K. , Ognard, Julien , Kadirvel, Ramanathan , Brinjikji, W

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A248-A248

10.1136/jnis-2025-snis.343 Get It

E-221 Simply the (B)EST : what the neurointerventionalist needs to know about (bleomycin) electrosclerotherapy for vascular anomalies
Alateya, Aysha, Alateya, Zain, Kadirvel, R, Kallmes, D, Brinjikji, Waleed , Ognard, Julien , Hajj, G El , Ghozy, Sherief , Kadirvel, Ramanathan , Kallmes, David F.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A242.2-A243

10.1136/jnis-2025-snis.336 Get It

E-206 Quality of life in patients with spontaneous intracranial hypotension: a systematic review and meta-analysis
Cutsforth‐Gregory, Jeremy K. , Kadirvel, Ramanathan , Kallmes, David F. , Brinjikji, Waleed , Ognard, Julien , Hajj, G El , Ghozy, Sherief , Madhavan, Ajay A.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A233.1-A233

10.1136/jnis-2025-snis.321 Get It

E-194 Microstructural brain changes assessment using neurite orientation dispersion and density imaging (NODDI) in a rodent stroke model of thrombectomy on a clinical 3T MR-scanner
Moëlo, Cloé , Caron, Margot , Chéchin, D., Kadirvel, Ramanathan , Ognard, Julien , Caron, M, Hajj, G El , Salem, D. Ben , Timsit, Serge

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A224.1-A224

10.1136/jnis-2025-snis.309 Get It

E-122 Endovascular rodent model using tail access and ultrasound guidance
Lortscher, Sarah, Bayraktar, Evren , Oliver, A, Brinjikji, W, Kadirvel, R, Kallmes, D, Ognard, Julien , Hajj, G El , Ding, Yonghong , Brinjikji, W, Kadirvel, Ramanathan , Kallmes, David F.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A173.2-A174

10.1136/jnis-2025-snis.238 Get It

E-060 The rabbit superior mesenteric artery as an in vivo model for perforator artery occlusion assessment after flow diversion
Cortese, Jonathan, Lortscher, Sarah, Kallmes, David F. , Kadirvel, Ramanathan , Cortese, Jonathan , Bayraktar, E, Dai, Daying , Ognard, Julien , Zarrintan, Armin , Hajj, G El , Ghozy, Sherief , Ding, Yonghong

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A132.2-A133

10.1136/jnis-2025-snis.176 Get It

E-052 Advances in endovascular brain computer interface : systematic review and future implications
Kadirvel, R, Kallmes, D, Brinjikji, Waleed , Ognard, Julien , Hajj, G El , Verma, Onam , Ghozy, Sherief , Kadirvel, Ramanathan , Kallmes, David F.

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A127.2-A128

10.1136/jnis-2025-snis.168 Get It

E-033 Cerebrospinal fluid-venous leak embolization in swine: a novel animal model
Cortese, Jonathan, Bilgin, Cem , Kadirvel, Ramanathan , Kallmes, D, Brinjikji, W, Bayraktar, E, Cortese, Jonathan , Ognard, Julien , Hajj, G El , Brinjikji, W

SNIS 22nd annual meeting electronic poster abstracts | July 14, 2025 | Volume: No volume available | Issue: No issue available | Pages: A112-A113

10.1136/jnis-2025-snis.149 Get It

Simulation of cerebrospinal fluid (CSF)-venous fistula embolization in a swine model: A technical video
Bayraktar, Esref Alperen , Cortese, Jonathan, Ognard, Julien , Hajj, G El , Bilgin, Cem , Kadirvel, Ramanathan , Kallmes, David F. , Brinjikji, Waleed , El Hajj, Gerard , Bayraktar, Esref Alperen , Ognard, Julien , Cortese, Jonathan , Bilgin, Cem

Interventional Neuroradiology | June 18, 2025 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1177/15910199251349656 Get It

Cerebrospinal fluid venous fistulas (CSFVF) can lead to spontaneous intracranial hypotension, causing debilitating symptoms in patients. The transvenous embolization technique has been developed to occlude leakage sites via an endovascular approach. However, the spinal venous anatomy remains relatively unfamiliar to many neurointerventionalists. This technical video presents a swine model designed to train physicians in navigating the spinal venous system, performing embolization injections, observing their spread, and testing new embolization systems for treating CSFVF. Although there are slight anatomical differences, the spinal venous system in swine closely resembles that of humans, including its navigability and employing liquid embolic agents. We successfully embolized multilevel spinal vasculature that can potentially drain into a fistula formation, without any complications.