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OBJECTIVE We retrospectively evaluated whether antiplatelet preparation lowered the thromboembolic complication rate during the perioperative period. METHODS We reviewed 328 elective coil embolization procedures in which only microcatheters were used for coiling. No antiplatelet medication was prescribed before the procedure in 95 cases (29%, group 1),(More)
In spite of the benign nature of subependymal giant cell astrocytomas (SEGAs), some show massive hemorrhage, rapid growth, and tumor recurrence. This led us to investigate the biological behavior, cell dynamics, and nobreak tumorigenesis of SEGAs. All patients (4 men and 3 women; age range, 6–27 years; mean, 13.6 years) had features of tuberous sclerosis(More)
PURPOSE We retrospectively evaluated the effect of brain atrophy on the outcome of patients after a large cerebral infarct. METHODS Between June 2003 and Oct 2008, 134 of 2975 patients with stroke were diagnosed as having a large cerebral infarct. The mean age of the patients was 70 (21-95) y. The mean infarct volume was 223.6±95.2 cm(3) (46.0-491.0). The(More)
The authors present a series of patients in whom early rebleeding occurred after coiling for ruptured aneurysms. We investigated the incidence and possible mechanisms of early rebleeding. This study consisted of 1,167 consecutive patients who underwent coiling for a ruptured saccular aneurysm. Clinical and radiological data were collected retrospectively(More)
OBJECTIVE We retrospectively evaluated the survival outcome of patients with brain metastasis from hepatocellular carcinoma (HCC). METHODS Between 1991 and 2007, a total of 20 patients were diagnosed as having brain metastasis from HCC. The mean age of the patients was 55 +/- 13 years, and 17 (85.0%) were men. Seventeen (85.0%) patients had already(More)
We retrospectively evaluated the survival of patients with brain metastases from advanced gastric cancer (AGC) after radiosurgery (RS). Between 1998 and 2007, a total of 11 patients (median age, 61 years; range, 36–70) were diagnosed with brain metastasis from AGC and treated with RS. Each of five (46%) patients had two brain metastases. The median volume(More)
OBJECTIVE We analyzed our clinical experience with patients with intracranial hypotension and developed a strategic model for the diagnosis mainly using Radioisotope (RI) cisternography and treatment of spontaneous intracranial hypotension (SIH). METHODS AND MATERIALS We retrospectively analyzed our clinical experiences with 30 cases of SIH from January(More)
We investigated the safety and clinical applicability of 7.0 Tesla (T) brain magnetic resonance imaging (MRI) in patients with brain tumors. Twenty-four patients with intraaxial or extraaxial brain tumors were enrolled in this study. 7.0T MRIs of T2*-weighted axial and T1-weighted coronal or sagittal images were obtained and compared with 1.5T brain MRIs.(More)
OBJECTIVE The purpose of this study was to assess the risk factors of prospective symptomatic haemorrhage in a large series of adult patients with cerebral cavernous malformation (CM). METHODS Three hundred twenty-six patients >18 years of age with 410 CMs were evaluated retrospectively. Symptomatic haemorrhage was defined as new clinical symptoms with(More)
The fate of the contralateral unaffected side of the surgically treated unilateral moyamoya disease (MMD) in adults has not been well described due to the limited number of cases and the heterogeneous ages and treatment methods. The aim of this study was to evaluate the contralateral angiographic progression rate and its risk factors in homogeneous adult(More)