Arteriovenous fistulas at the cervicomedullary junction presenting with subarachnoid hemorrhage: six case reports with special reference to the angiographic pattern …
Y Kai, J Hamada, M Morioka, S Yano… - American journal …, 2005 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Cases with spinal perimedullary arteriovenous fistulas (SPAVFs)
or spinal dural arteriovenous fistulas (SDAVFs) at the cervicomedullary junction are …
or spinal dural arteriovenous fistulas (SDAVFs) at the cervicomedullary junction are …
Expression of angiopoietin-2 in human glioma cells and its role for angiogenesis
K Koga, T Todaka, M Morioka, J Hamada, Y Kai… - Cancer Research, 2001 - AACR
In highly vascular malignant glioma, glioma cells themselves may express angiogenic
factors and induce angiogenesis. Recent studies have shown that novel angiogenic factors, …
factors and induce angiogenesis. Recent studies have shown that novel angiogenic factors, …
Angiographic dilatation and branch extension of the anterior choroidal and posterior communicating arteries are predictors of hemorrhage in adult moyamoya patients
…, JI Hamada, T Kawano, T Todaka, S Yano, Y Kai… - Stroke, 2003 - Am Heart Assoc
Background and Purpose— The cause of intracranial bleeding in moyamoya disease
patients is still unknown. To identify factors that contribute to bleeding, we assessed the …
patients is still unknown. To identify factors that contribute to bleeding, we assessed the …
Activation of Akt/protein kinase B contributes to induction of ischemic tolerance in the CA1 subfield of gerbil hippocampus
…, K Fukunaga, T Kawano, T Hara, Y Kai… - Journal of Cerebral …, 2001 - journals.sagepub.com
Apoptosis plays an important role in delayed neuronal cell death after cerebral ischemia.
Activation of Akt/protein kinase B has been recently reported to prevent apoptosis in several …
Activation of Akt/protein kinase B has been recently reported to prevent apoptosis in several …
High-risk age for rebleeding in patients with hemorrhagic moyamoya disease: long-term follow-up study
M Morioka, J Hamada, T Todaka, S Yano, Y Kai… - …, 2003 - journals.lww.com
OBJECTIVE: The prevention of rebleeding is one of the most important issues in the successful
treatment of moyamoya disease with hemorrhagic onset. However, the natural course of …
treatment of moyamoya disease with hemorrhagic onset. However, the natural course of …
Prediction of high-grade meningioma by preoperative MRI assessment
Y Kawahara, M Nakada, Y Hayashi, Y Kai… - Journal of neuro …, 2012 - Springer
High-grade (World Health Organization grades II and III) meningiomas grow aggressively
and recur frequently, resulting in a poor prognosis. Assessment of tumor malignancy before …
and recur frequently, resulting in a poor prognosis. Assessment of tumor malignancy before …
Thrombosed growing giant aneurysms of the vertebral artery: growth mechanism and management
S Nagahiro, A Takada, S Goto, Y Kai, Y Ushio - Journal of neurosurgery, 1995 - thejns.org
✓ Results in three patients with thrombosed giant aneurysms of the vertebral artery are
reported. Each of the aneurysms presented as a mass lesion. On postcontrast computerized …
reported. Each of the aneurysms presented as a mass lesion. On postcontrast computerized …
Outer-diameter narrowing of the internal carotid and middle cerebral arteries in moyamoya disease detected on 3D constructive interference in steady-state MR image …
Y Kaku, M Morioka, Y Ohmori, T Kawano, Y Kai… - Acta …, 2012 - Springer
Background To obtain information on affected vessels in moyamoya disease (MMD), we
analyzed the vascular morphological characteristics of MMD using three-dimensional (3D) …
analyzed the vascular morphological characteristics of MMD using three-dimensional (3D) …
Appropriate interval between embolization and surgery in patients with meningioma
Y Kai, J Hamada, M Morioka, S Yano… - American Journal …, 2002 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: The best time for surgery after embolization of meningiomas
remains unclear. We used the tumor-softening effect of embolization to determine this time…
remains unclear. We used the tumor-softening effect of embolization to determine this time…
Detection of hemorrhagic hypointense foci in the brain on susceptibility-weighted imaging: clinical and phantom studies
…, R Toya, EM Haacke, M Takahashi, T Hirano, Y Kai… - Academic radiology, 2007 - Elsevier
RATIONALE AND OBJECTIVES: To determine the sensitivity of susceptibility-weighted imaging
(SWI) for depicting hemorrhagic hypointense foci of the brain in comparison with gradient…
(SWI) for depicting hemorrhagic hypointense foci of the brain in comparison with gradient…
