Yuichi Murayama
Jikei University School of Medicine
335 Papers
1.5K Citations
Yuichi Murayama is an academic researcher from Jikei University School of Medicine. The author has contributed to research in topics: Medicine & Aneurysm. The author has an hindex of 45, co-authored 285 publications. Previous affiliations of Yuichi Murayama include University of Eastern Finland & University of California, Los Angeles.
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Papers
Balloon-assisted Guglielmi detachable coiling of wide-necked aneurysms: Part I--experimental evaluation.
Yasutada Akiba,Yuichi Murayama,Fernando Vinuela,Michael A. Lefkowitz,Gary Duckwiler,Y P Gobin +5 more
TL;DR: Balloon-assisted Guglielmi detachable coiling technology may produce a temporary increase of pressure within the aneurysm while occluding theAneurysmal neck during coil delivery, which may potentially be the cause of aneurym rupture in the clinical setting.
Sulfated dextrans enhance in vitro amplification of bovine spongiform encephalopathy PrPSc and enable ultrasensitive detection of bovine PrPSc.
Yuichi Murayama,Miyako Yoshioka,Kentaro Masujin,Hiroyuki Okada,Yoshifumi Iwamaru,Morikazu Imamura,Yuichi Matsuura,Shigeo Fukuda,Sadao Onoe,Takashi Yokoyama,Shirou Mohri +10 more
TL;DR: It is reported here that PrPSc derived from BSE-affected cattle can be amplified ultra-efficiently by PMCA in the presence of sulfated dextran compounds, suggesting a potential usefulness of this technique for BSE diagnosis.
Flow Diverter Apposition in Patients with Large or Giant Intracranial Aneurysms Evaluated on Three-Dimensional Fusion Images Acquired by High-Resolution Cone-Beam Computed Tomography and Digital Subtraction Angiography
Naoki Kato,Ichiro Yuki,Katharina Otani,Toshihiro Ishibashi,Shota Kakizaki,Gota Nagayama,Fumiaki Maruyama,Ayako Ikemura,Issei Kan,Tomonobu Kodama,Yukiko Abe,Yuichi Murayama +11 more
TL;DR: 3D fusion images provided clear visualization of structures of both the stent and parent artery with excellent diagnostic reliability, and relative malapposition increased by an estimated 13% (95% confidence interval [CI]: 4-23%, p=0.006) for each 1 mm increase in FD diameter.
Concomitant Intracranial and Lumbar Chronic Subdural Hematoma Treated by Fluoroscopic Guided Lumbar Puncture: A Case Report and Literature Review.
Daisuke Ichinose,Satoru Tochigi,Toshihide Tanaka,Tomoya Suzuki,Jun Takei,Keisuke Hatano,Ikki Kajiwara,Fumiaki Maruyama,Hiroki Sakamoto,Yuzuru Hasegawa,Satoshi Tani,Yuichi Murayama +11 more
TL;DR: A 40-year-old man presented with a severe headache, lower back pain, and lower abdominal pain 1 month after a head injury caused by falling and a less invasive approach is recommended not only for an intracranial lesion but also for spinal lesion.
Alteration of FOXM1 expression and macrophage polarization in refractory meningiomas during long-term follow-up
Jun Takei,Toshihide Tanaka,Akihiko Teshigawara,Satoru Tochigi,Yuzuru Hasegawa,Yuichi Murayama +5 more
TL;DR: CD163 and FOXM1 expression levels were induced even in recurrent grade I meningioma, suggesting that macrophage polarization and pro-mitotic transcriptional factor might be associated with clinical behavior of mening ioma and be useful as a prediction marker for malignant progression.