Oishi Neurosurgical Clinic, located in Todoroki, Setagaya Ward, Tokyo, is a specialized neurosurgery clinic. The clinic's director, Dr. Hidenori Oishi, has over 20 years of research and clinical experience at university hospitals and has performed more than 7,500 neuroendovascular procedures, one of the highest volumes in Japan. When neuroendovascular treatment is deemed necessary, arrangements can be made for the director to perform the procedure at affiliated hospitals. The clinic treats a wide range of conditions, from common neurological symptoms such as dizziness, limb numbness, and headaches to cerebrovascular diseases that can lead to stroke, including cerebral aneurysms, cerebral artery stenosis, cerebral infarction, cerebral hemorrhage, subarachnoid hemorrhage, and Moyamoya disease. The facility is equipped with a state-of-the-art 3.0 Tesla MRI scanner capable of high-precision imaging without radiation exposure, emphasizing early detection and treatment. The clinic's advanced clinical practices, including post-operative follow-up using UTE MRA, have been featured in the medical journal "Monthly Inner Vision." English consultation is available, and barrier-free facilities ensure accessible care for diverse patients.