نتایج جستجو برای: surgical knife
تعداد نتایج: 336603 فیلتر نتایج به سال:
Endoscopic mucosal resection (EMR) has been accepted as a treatment of early gastric cancer (EGC). The number of EMR procedures for EGC has been increasing because a patient's quality of life after EMR is superior to that after surgical gastrectomy. In Japan, most EMR have been performed using the strip biopsy method; however, in some cases we experienced local recurrences when multiple fragmen...
This paper presents the design of a surgical knife device for a multi-fingered haptic interface robot called HIRO, and summarizes the experimental results. HIRO consists of a robot arm and a five-fingered hand, and is able to handle the tool with fingers. A variety of tools can be attached to HIRO, and the system is therefore able to present the force sensation of many tool-type devices. For ex...
The management of pituitary adenomas entails a multidisciplinary approach that involves neurosurgeons, endocrinologists, and radiation oncologists. Traditionally, the treatment included medical management, surgery (transsphenoidal microsurgical resection and transcranial approaches), and conventional fractionated radiotherapy. Stereotactic radiosurgery, through the various competing radiosurgic...
Trigeminal neuralgia (TN) is a disabling pain condition that has classically been treated using either surgical or medical techniques. Several researchers have shown that stereotactically delivered radiation can be an effective tool in the amelioration of this condition. For these studies, the Gamma Knife was used to deliver the radiation treatment. The target location was designated as the pro...
Orbital penetrating injuries may cause significant harm to the optic nerves and eyeball as well as to the brain and cerebral vessels. Management of orbital foreign bodies should include prompt recognition of the extent of the injury, broad-spectrum parenteral antibiotics, tetanus prophylaxis, anticonvulsant medication and early surgical intervention under direct vision to remove the foreign bod...
OBJECTIVE The aim of this study was to evaluate the relative socioeconomic costs of benign cranial base tumors treated with open surgery and gamma knife radiosurgery. METHODS In a retrospective study, we studied 174 patients with benign cranial base tumors, less than 3 cm in diameter (or volume less than 30 ml), admitted in the past 5 years. Group A (n = 94) underwent open surgery for removal...
A 70-year-old right-handed Japanese man who had undergone surgical resection for hepatocellular carcinoma (HCC) 2 years earlier was diagnosed with lung metastasis 3 months before consulting our hospital with a headache and visual field disturbance. Head computed tomography revealed a brain tumor with an intracerebral hemorrhage. Using (99m)Tc-PMT (pyridoxal-5-methly-triptophan) scintigraphy, we...
Background Intracranial epidermoid tumors are commonly found in the cerebellopontine angle where they usually present with either trigeminal neuralgia or hemifacial spasm. Radiosurgery for these tumors has rarely been reported. The purpose of this study is to assess the safety and clinical outcome of the treatment of cerebellopontine epidermoid tumors with gamma knife radiosurgery. Methods Th...
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