Genichirou Sekizawa

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We evaluated the treatment outcome of stereotactic radiosurgery (SRS) alone, allowing for salvage with repeat SRS or fractionated radiotherapy, for managing patients with brain metastases from non-small cell lung cancer (NSCLC). From October 1998 through November 2008, 84 patients with NSCLC metastatic to the brain were treated with linac SRS. The marginal(More)
Non-small cell lung cancer (NSCLC) is characterized by brain metastases that occur in about 30 to 50% of patients. To control tumor growth potential with maintaining neurocognitive function is important in the recent radiotherapy against brain metastases. From this viewpoint, we investigated the utility of repeat stereotactic radiosurgery (SRS) with a(More)
Magnetic resonance (MR) images were obtained from 171 patients with benign and malignant neoplasms in the uterus and ovary, by using a low magnetic-field machine with 0.22 T, and its usefulness is discussed. Small uterine neoplasms (a few mm of its diameter) can be detected as an abnormal intensity. Therefore, the detectability is helpful for determination(More)
We have experienced treating 29 patients of esophageal carcinoma with multiple fractions per day (MFD) examined the effectiveness of this method. A dose of 2.0 Gy was delivered to the conventional field and 1.1, 1.15, or 1.2 Gy to the gross disease at 4- to 6- hour interval for 20 days, 4 days per week. The total tumor doses were 62, 63 or 64 Gy/40 f/5 w.(More)
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