Learn More
We evaluated the endocrinological outcomes of gamma knife radiosurgery (GKS) for the treatment of growth hormone (GH)-producing pituitary adenomas. Twenty-six patients treated with GKS (median treatment [tumour] volume: 0.8 mL; median marginal radiation dose: 20Gy) were followed for a median of 84 months. "Disease remission" was defined as either nadir(More)
OBJECTIVE The results of radiosurgical treatment of acoustic neuromas have improved by reducing the tumor marginal doses. We report relatively long-term follow-up results (>5 yr) for patients who underwent low-dose radiosurgery. METHODS We treated and followed 51 consecutive patients with unilateral acoustic neuromas who were treated from January 1994 to(More)
UNLABELLED The treatment of acoustic neuromas has been improved by advancements in microsurgical techniques and in radiosurgery. To further elucidate the degree of clinical improvement, we evaluated the treatment results of a combination of surgery and radiosurgery for large acoustic neuromas. METHODS From January 1994 through December 2000, we treated 14(More)
Appropriate diagnostic procedure for spinal epidural hematomas has not been established yet. The authors reported a case of spontaneous epidural hematomas at the thoracic level, in which correct diagnosis was made with MRI and good results were obtained by surgery. A 63-year-old female experienced a severe back pain which appeared suddenly during a walk and(More)
OBJECT In this study the authors examined how to differentiate radiation necrosis from recurrent metastatic brain tumor following stereotactic radiosurgery by using positron emission tomography (PET) with L-[methyl-11C]methionine (MET). METHODS In 21 adult patients with suspected recurrent metastatic brain tumor or radiation injury, MET-PET scans were(More)
BACKGROUND Many reports have demonstrated a worse prognosis for patients whose cavernomas were subtotally removed than for those whose cavernomas were not surgically treated. Therefore, it is better not to touch the cavernoma if a surgeon is not prepared to totally remove it. This report describes a large brainstem cavernoma showing a spontaneous, dramatic(More)
BACKGROUND In this study, we report on the effectiveness and usefulness of two-staged gamma knife radiosurgery (GKS) for large petroclival and cavernous sinus meningiomas that have a high rate of surgical morbidity. METHODS We have treated 7 patients suffering from large petroclival and cavernous sinus meningiomas using two-staged radiosurgery since March(More)
BACKGROUND Though familial intracranial aneurysms are well documented, only a few cases of intracranial aneurysms in identical twins have been reported. CASE REPORT Our patient, a 46-year-old woman, presented with a subarachnoid hemorrhage (SAH) due to a ruptured aneurysm. At the age of 36, her identical twin sister had also suffered SAH from a ruptured(More)
BACKGROUND We aimed to examine whether stereotactic radiosurgery without whole-brain radiotherapy (WBRT) as the initial treatment for patients with five to ten brain metastases is non-inferior to that for patients with two to four brain metastases in terms of overall survival. METHODS This prospective observational study enrolled patients with one to ten(More)