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PURPOSE A randomized study was undertaken to assess the role of brachytherapy as a boost to external beam radiation therapy in the initial management of patients with malignant astrocytomas. METHODS AND MATERIALS Inclusion criteria included the following: biopsy-proven supratentorial malignant astrocytoma of brain < or =6 cm in size, not crossing midline(More)
Preservation of ovarian function is both safe and feasible in many young women with pelvic malignancies. Techniques utilized to transpose the ovaries to date have uniformly required a laparotomy either at the time of surgical treatment or as a separate operation in patients about to undergo pelvic radiotherapy. We report our preliminary results in 3(More)
OBJECTIVE To evaluate the use of an electronic barcode system for patient identification during blood transfusion. DESIGN Retrospective study. SETTING Regional hospital, Hong Kong. PATIENTS For all patients requiring blood transfusion between May 1999 and April 2002, with the exception of patients in the psychiatric wards and the accident and(More)
Of 112 stereotactic high-activity iodine-125 implants for malignant brain tumors done as of July 1, 1994, ten have been done for recurrent single brain metastasis and constitute the study group described herein. All patients had initially undergone craniotomy for tumor resection followed by fractionated external beam whole brain radiation and recurred at(More)
PURPOSE To assess the efficacy of interstitial brachytherapy in the treatment of patients with recurrent malignant astrocytoma. METHODS AND MATERIALS Forty-six patients with recurrent malignant astrocytoma were treated with stereotactic high-activity temporary iodine-125 implants between September, 1986 and October, 1992. All patients had been initially(More)
We describe two patients who developed devastating strokes due to intracranial arterial occlusion 15 weeks and 97 weeks following high dose stereotactic iodine-125 brachytherapy for glioblastoma multiforme. In both cases the occlusion was within the implant volume at points receiving 110-281 Gy and there was no other evidence of significant atherosclerosis(More)
Maintenance of stable central eye fixation is crucial for a variety of behavioral, electrophysiological, and neuroimaging experiments. Naive observers in these experiments are not typically accustomed to fixating, either requiring the use of cumbersome and costly eyetracking or producing confounds in results. We devised a flicker display that produced an(More)
Arthroscopically assisted reconstruction of the anterior cruciate ligament-deficient knee using a bone-patellar tendon-bone graft is a new and evolving technique. One technically demanding aspect involves the placement under arthroscopic visualization of the femoral interference screw. The effect on pullout strength of changing the angle of the interference(More)
The pattern of tumor recurrence was studied in a series of 68 patients who were treated with interstitial brachytherapy for malignant astrocytoma. Thirty-six patients had newly diagnosed tumors and were treated following surgery and external beam therapy, while 32 were treated for recurrent tumors. Recurrence pattern was determined using computed tomography(More)