Yuichi Hirose

Joji Inamasu10
Mitsuhiro Hasegawa8
Takuro Hayashi4
Shinya Nagahisa4
10Joji Inamasu
8Mitsuhiro Hasegawa
4Takuro Hayashi
4Shinya Nagahisa
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Hemodynamic factors are thought to play important role in the initiation, growth, and rupture of cerebral aneurysms. However, hemodynamic features in the residual neck of incompletely occluded aneurysms and their influences on recanalization are rarely reported. This study characterized the hemodynamics of incompletely occluded aneurysms that had been(More)
PURPOSE Development of adjacent segment degeneration following anterior cervical decompression and fusion (ACDF) is still controversial, as adjacent-level kinematics is poorly understood. This study reports preliminary data from a high-accuracy 3D analysis technique developed for in vivo cervical kinematics. METHODS From nine cervical spondylosis(More)
OBJECTIVE AND BACKGROUND We evaluated the feasibility and effectiveness of transsphenoidal surgery for large and giant pituitary adenomas with suprasellar extensions as these tumors have been therapeutic challenge. SUBJECTS AND METHODS We retrospectively analyzed 50 cases with 56 surgeries in patients with pituitary adenomas that were surgically treated(More)
Recent investigations revealed genetic analysis provides important information in management of gliomas, and we previously reported grade II-III gliomas could be classified into clinically relevant subgroups based on the DNA copy number aberrations (CNAs). To develop more precise genetic subgrouping, we investigated the correlation between CNAs and(More)
BACKGROUND It is rare for patients with pituitary apoplexy to exhibit concomitant subarachnoid hemorrhage (SAH). Only a handful of patients with pituitary apoplexy have developed such hemorrhagic complications, and histopathological examination revealed pituitary adenoma as the cause of SAH. CASE REPORT A previously healthy 35-year-old woman was brought(More)
Spinal epidural abscess (SEA) and spinal epidural hematoma (SEH) are neurologic emergencies with distinct etiologies and treatment. Despite similarities on magnetic resonance imaging (MRI), their differentiation is usually possible with meticulous history taking and neurologic examinations. We report an unusual case of SEA that developed from preceding SEH,(More)
OBJECTIVE AND BACKGROUND Unruptured aneurysm surgery is a challenge to all vascular neurosurgeons as the patient is asymptomatic and no even slight neurological deficits should be expected postoperatively. To this aim, multi-modality checking of the vessels during the surgery is highly recommended to assure of the patency of the parent and perforator(More)
Spontaneous intracranial hypotension (SIH) is a syndrome in which hypovolemia of the cerebrospinal fluid (CSF) results in various symptoms. Although its prognosis is usually benign, cases with a rapid neurologic deterioration resulting in an altered mental status have been reported. One of the characteristic radiographic findings in such cases is the(More)