[Advanced imaging diagnosis and therapeutic strategies for ischemic stroke]

In recent years, advances in imaging analysis technologies, including CT perfusion, MRI, and AI analysis, have extended the therapeutic time window for acute ischemic stroke to as long as 24 hours. In Japan, however, while MRI remains the predominant modality, the dissemination and utilization of perfusion imaging are still limited, and institutional challenges persist. Moreover, even among neurologists specializing in stroke, the understanding and integration of perfusion imaging and AI technologies remain insufficient. This article provides an overview of these developments, and it is anticipated that future strategies will focus on constructing novel diagnostic approaches that integrate AI technologies with Japan's unique MRI environment.