Session Descriptions

Artificial advances in AI technology hold great potential also in neuroendovascular therapy. In addition to rupture risk prediction models for unruptured intracranial aneurysms, research and development are being advanced in various fields such as support for treatment device selection, intraoperative image analysis, and post-treatment outcome prediction. In this symposium, we will share the latest results of AI research in neuroendovascular therapy and discuss issues and prospects toward clinical application.

*JSNET Members

The progress of neuroendovascular therapy has advanced greatly not only by clinical techniques but also by the basic research that supports them. Pathological studies of the vessel wall and thrombus, fluid dynamics and hemodynamic analysis, imaging analysis, AI technology, and medical device development—these fields continue to expand. On the other hand, there are many barriers in basic research, such as balancing with clinical work, establishing research environments, and difficulty in setting themes. In this symposium, we will widely discuss the significance of basic research, how to start it, methods for continuation, and translation into clinical practice, and invite presentations that will lead to next-generation innovation.

*JSNET Members

Although thrombectomy for acute ischemic stroke has become widespread, it has been revealed that the diversity of thrombus composition and morphology directly affects recanalization rates and outcomes. In this symposium, we will share the latest knowledge on thrombus pathology and discuss its application to imaging diagnosis, device selection, and treatment strategies. From multidisciplinary perspectives of pathology, imaging, engineering, and clinical practice, we will deeply explore how “understanding the thrombus” can change treatment, and aim to share practical knowledge for improving outcomes.

*JSNET Members

Intracranial atherosclerotic disease (ICAD) is a major cause of difficulty in thrombectomy and re-occlusion, and is an important condition frequently seen in Asians. In this symposium, we will describe in detail imaging differentiation of large vessel occlusion caused by ICAD, procedural strategies from thrombectomy to angioplasty and stent placement, and innovations in antithrombotic therapy. From basic science to clinical application and future perspectives, we will discuss from multiple angles and aim to share practical knowledge to improve treatment outcomes. This will be an opportunity to deepen the latest strategies directly linked to daily clinical practice together with experts.

*JSNET Members

While the validity of revascularization therapy for acute large vessel occlusion has been established due to device advances and refinement of techniques, there still remain many aspects under debate regarding indications, device selection, techniques, complication management, and clinical outcomes of MeVO treatment. In this symposium, we will broadly discuss the current status and issues of revascularization for MeVO and share future perspectives.

*JSNET Members

In the treatment of dural arteriovenous fistula (dAVF), there are various options, from selection of transvenous or transarterial approaches to choice of devices such as coils and liquid embolic materials. However, the crucial point that determines treatment success is how accurately the angioarchitecture can be “seen.” In this symposium, we will share ingenuity in imaging diagnosis at each institution and deeply discuss the essence of dAVF management, “To see is to cure.”

*JSNET Members

Tumor embolization contributes to reduction of intraoperative bleeding and shortening of operation time as a preoperative procedure and is widely used. In recent years, possibilities as a standalone treatment, such as volume reduction, symptom improvement, and tumor necrosis effects, have also attracted attention. In this symposium, while reconsidering its current status as a standard treatment, we will discuss utilization of the latest devices, new embolic materials, and strategies to improve functional outcomes. We will explore the future and potential of tumor embolization beyond the framework of preoperative treatment from multiple perspectives.

*JSNET Members

Arteriovenous malformations (AVMs) are complex diseases requiring advanced consideration in interpretation of natural history, determination of treatment indication, and selection of treatment strategies. The role of endovascular therapy continues to evolve, including embolization aiming at cure alone, embolization in anticipation of surgery or radiotherapy, and management of hemorrhagic cases and high-grade AVMs, and there is variation among institutions in concepts and practice. In this symposium, we will discuss indications, strategies, avoidance of complications, and positioning in multidisciplinary treatment for AVM, and widely invite presentations rich in the latest knowledge and ingenuity.

*JSNET Members

Treatment of bifurcation aneurysms has dramatically increased in options with the emergence of intrasaccular embolization devices (WEB) in addition to conventional coils, stents, and clipping. In this symposium, we will examine optimal device selection and procedural innovations according to anatomical characteristics of individual cases. From practical, multi-angled perspectives, we will thoroughly discuss improvement in treatment outcomes and limitations of each method and clarify the current achievements and issues in bifurcation aneurysm treatment.

*JSNET Members

With the advent of WEB and expansion of stent indications, treatment of ruptured intracranial aneurysms is entering a period of transformation. In this symposium, we widely invite presentations on clinical knowledge, technical innovations, and innovations related to ruptured aneurysms by leading experts. In addition to optimal use of the latest devices, we aim to establish solutions to existing challenges such as management of difficult cases like blister-like aneurysms and antithrombotic therapy, further improvement of treatment outcomes, and next-generation standards.

*JSNET Members

More than 10 years have passed since flow diverters (FD) were introduced in Japan, and the treatment of large and giant intracranial aneurysms has undergone dramatic transformation. In this symposium, in addition to evaluating the long-term outcomes accumulated over the past decade, we will reconsider treatment strategies for small lesions and bifurcation aneurysms associated with expanded indications. Including the characteristics of the latest devices, strategies to avoid complications, and aspects of management such as antiplatelet therapy, we will summarize the current status of FD treatment and thoroughly discuss challenges and prospects for the next decade.

*JSNET Members

In the treatment of unruptured intracranial aneurysms, safety is one of the most important issues. In addition to the efforts of individual physicians, organizational safety management is essential. In this symposium, incorporating perspectives from experts, we will approach the topic from a multifaceted structure and carefully discuss, through a panel discussion, the theory and practice of safe treatment of unruptured intracranial aneurysms, aiming to derive a comprehensive and practical action plan that should be shared among all society members. We widely invite presentations on approaches related to treatment safety in various environments, including “large-scale institutions with abundant resources” such as university hospitals and center hospitals, and “facilities with limited manpower” that support regional healthcare with a small number of staff, such as innovations during treatment, decision-making processes for treatment strategies, conferences, and informed consent (IC).

*JSNET Members

In recent years, the establishment of stroke centers has become an urgent issue with the aim of improving the quality of acute stroke care. Various initiatives are being undertaken at each institution, including role sharing by PSCs and PSC core facilities, and the development of acute treatment systems including thrombectomy. In this symposium, in addition to operational challenges, regional collaboration, and human resource development, we will also discuss in depth the development of next-generation infrastructure such as “introduction of robot-assisted technology,” “specialist support through telemedicine (Telestroke),” and “optimization of team-based care through task shifting.” How to utilize technology under limited medical resources and how to build a sustainable emergency care system. We widely invite presentations on practical initiatives and future perspectives at each institution.

*JSNET Members

The transradial approach (TRA) has rapidly spread due to its advantages such as minimal invasiveness, reduction of puncture-site complications, and early ambulation, and its indications have expanded not only for diagnosis but also for various treatments. On the other hand, many issues still remain, including anatomical limitations, device compatibility, stability of guiding, the learning curve, and measures against radial artery occlusion. In this symposium, we will discuss the current status and future potential of TRA, strategies for complications, unique innovations, the process of introduction, and issues related to education systems and standardization, and we widely invite presentations that provide perspectives for the future.

*JSNET Members

Medical device development involves multifaceted challenges, ranging from identifying clinical needs to collaboration with industry and regulatory and approval processes. In recent years, the development and approval of “program medical devices,” in which software itself functions as a medical device, such as AI prediction models, have also become increasingly active. In this symposium, we will share real examples of development processes, from conventional devices to software, and discuss how research outcomes can be translated into social implementation. From both academic and industrial perspectives, we will explore in depth the latest “real-world” situation.

*JSNET Members

In neuroendovascular therapy, puncture site management is an important process that determines the completion of the procedure. With the evolution of devices, the spread of the transradial approach from the femoral artery and the diversification of various hemostatic devices, access site management is in a period of dramatic transformation. Achieving both safety under the use of large-bore sheaths and intensive antithrombotic therapy and early ambulation is the most important issue. In this symposium, we will discuss, from multiple perspectives, innovations in puncture site management, including strategies to avoid complications, the latest hemostatic methods, and education systems.

*JSNET Members

Middle meningeal artery embolization for chronic subdural hematoma has recently attracted attention from the perspectives of recurrence prevention and minimally invasive treatment. As the number of patients increases with the aging population, clarification of the indications and role sharing between surgical treatment and endovascular therapy is an important issue. In particular, it is expected to be a promising treatment option in recurrent cases, bilateral cases, cases under antiplatelet therapy, and cases with poor general condition. In this symposium, we will examine, from multiple perspectives, the current status and future prospects of this treatment, including its indications, treatment outcomes, complications, and collaboration with surgical treatment.

*JSNET Members

While neurovascular treatment has seen remarkable global progress, significant differences remain in healthcare environments, indications, and regulatory frameworks across countries. This session invites the next generation of physicians and researchers to present the current status, challenges, and their own research activities within their respective nations. We also encourage speakers to share their personal commitment and vision for the future of the field. This session is an ideal platform for those making their debut in English-language presentations. Let’s create a vibrant international forum where young passion meets innovation.

*JSNET Members and International Participants

The venous system is being redefined not as a mere drainage pathway but as a “regulatory system” responsible for maintaining brain homeostasis. In this symposium, we will focus on diseases such as IIH caused by TSS and venous perfusion disorders, and discuss, from multiple perspectives, the effectiveness of the glymphatic system and VSS. How intervention in the venous system contributes to improvement in pain relief, visual function, and cognitive outcomes. We will share innovative treatment strategies brought about by advances in imaging and devices and provide an opportunity to consider the future of venous system interventions.

*JSNET Members

This session aims to foster a new form of international exchange by introducing cutting-edge real-time AI translation technology, enabling truly interactive discussions beyond language barriers. We warmly invite submissions from both Japanese participants who may feel hesitant about presenting or engaging in discussions in English, as well as international speakers who are not familiar with Japanese.
The session will cover all aspects of neuroendovascular therapy. All discussions, including Q&A, will be conducted through an AI-based translation application, allowing seamless communication between English and Japanese.
We welcome participants who are motivated not by language proficiency, but by a genuine desire to share their clinical insights with the global community. Join us in exploring a new era of international collaboration.

*JSNET Members and International Participants

In this symposium, we will redefine the role of “medical illustration” in neuroendovascular therapy. Visualization of complex vascular anatomy and procedures does not remain limited to record-keeping, but also serves as an “innovation in communication” that supports improvement in the accuracy of preoperative simulation, transfer of techniques, and informed consent (IC) for patients. By integrating with the latest technologies such as 3D, AI, and VR, we will share the forefront of visual communication that is evolving dramatically and, together, open up the future of new treatment strategies in which art and science resonate.

*JSNET Members

In neuroendovascular therapy, cerebral angiography is the foundation of everything, and mastering it is the shortest path to improvement. However, the “techniques” for obtaining safe and comprehensive information are currently inherited as unique “styles” at each institution and by each individual. In this symposium, from device selection to catheter manipulation, timing of imaging, and optimization of contrast media, we will thoroughly discuss the distinctive techniques that each institution takes pride in. By returning to the basics, let us share techniques that will further refine clinical practice from tomorrow.

*JSNET Members

This symposium is a summit limited to young and mid-career physicians under 40 years of age who will lead the next generation. We will confirm the “current position” in daily clinical practice and discuss “future” treatment strategies that will become the standard in 10 years. The content of submitted presentations is unrestricted. We widely invite a variety of contents, including case reports, summaries of research results, treatment strategies, current issues and proposed solutions, and personal aspirations. Furthermore, let us actively discuss the “dreams” envisioned as individual neuroendovascular specialists. Not only sharing techniques, but also connecting peers of the same generation who share the same aspirations and providing a place to exchange mutual passion, please make full use of this summit. Abstract submission is limited to those under 40 years of age at the start of registration (born on or after April 15, 1986).

*JSNET Members

We will revisit cerebrovascular anatomy, which forms the foundation of neuroendovascular therapy, from an educational perspective, and widely share knowledge that is directly applicable to clinical practice. In this symposium, we will discuss how anatomical understanding can be applied to diagnosis, treatment strategies, and device selection, and we widely invite presentations covering a broad range of topics, including case presentations, educational innovations, and sharing of pitfalls. Through active discussion from beginners to experts, we aim to deepen understanding and provide an opportunity to reaffirm the fundamentals of neuroendovascular therapy.

*JSNET Members

(Target applicants: Medical staff [non-physicians])
In the field of neuroendovascular therapy, the participation of multiple professions, including nurses, radiologic technologists, and clinical engineers, is indispensable, and the importance of team-based care is increasing. In this symposium, we will share the latest knowledge from the perspectives of each profession and discuss smooth interprofessional collaboration, education, and approaches to safety management. By providing a platform in which highly interested medical staff can actively participate and by deeply exploring the current status and future of treatment supported by multiple professions, we will share practical knowledge for improving treatment outcomes.

*JSNET Members

(Target applicants: Radiologic technologists and physicians)
Traditionally, the standard for postoperative evaluation of cerebral aneurysms has been cerebral angiography; however, with improvements in the resolution of MRI and CT and advances in imaging techniques, minimally invasive and highly accurate image evaluation has become possible. Accordingly, in order to accurately assess postoperative conditions, it has become important to appropriately utilize each imaging modality based on its characteristics. In this symposium, we will organize these current trends and discuss, from both radiologic technologist and physician perspectives, the potential for improved diagnostic accuracy brought about by the latest technologies.

*JSNET Members