T Ohkawa

On-chip sine-wave noise generator for analog IP noise tolerance measurements

Midori Soda, Yoshiyuki Bando, Satoshi Takaya, T Ohkawa et autres

A sine-wave noise generator with a harmonic-eliminated waveform is proposed for measuring the noise tolerance of analog IPs. In the waveform, harmonics up to the thirteenth harmonic are eliminated by combining seven rectangular waves with 22.5-degree spacing phases. This waveform includes only …

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[Establishment of the Japanese Radiation Oncology Study Group].

T Ohkawa, Kazunori Morita

The Japanese Radiation Oncology Study Group (GROSG) which conducts multi-center trials, was organized in July, 1998 in order to establish standards' for radiation therapy. These standards must be based on the results of high quality trials, and the quality of radiotherapy must …

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[Radiotherapy for breast cancers].

T Ohkawa, Yuko Kaneyasu, Kumiko Karasawa, Midori Kita

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A Case Control Study on Risk Factors Involved in Inflammatory Breast Recurrence afterBreast-Conserving Surgery

Reiki Nishimura, Hiroki Koyama, Fujio Kasumi, Shigemitsu Takashima et autres

Recurrence that poses the biggest problem after breast-conserving surgery is local recurrence. Particularly, in the case of inflammatory breast recurrence which is rare but has a specific pathologic nature, it is important to elucidate the pathology and risk factors and to consider …

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Effect of Benzaldehyde on Regrowth Time of Transplanted Murine N-Fibrosarcoma Cells after The Combined Treatment with Hyperthermia.

Natsumi Tanaka, Hiroya Yamagishi, T Ohkawa, Tetsuya Maeda

(1) The effect of benzaldehyde (BA) on delay in hour in tumor regrowth was investigated after simultaneous treatment with hyperthermia for 3 fold of the initial tumor volume in 50% among a group of mice, TGT50/3 fold. BA was injected directly to …

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Further Section

Antonio Llombart‐Cussac, Xavier B. Pivot, Alba Rhor-Alvarado, Axel Le Cesne et autres

Clinical Image. MRI of Multicentric Reticulohistiocytosis

Takayuki Yamada, Y. Kurohori, Sadao Kashiwazaki, Mariko Fujibayashi et autres

Yamada, Takayuki; Kurohori, Yuko; Kashiwazaki, Sadao; Fujibayashi, Mariko; Ohkawa, Tomohiko Author Information

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[A case of urinary retention due to ovarian dermoid cyst in a female infant].

Masako Matsumoto, Toshihiko Watanabe, Yasunari Uekado, T Ohkawa

The patient was a 20-month-old girl. She visited some pediatric clinic with the chief complaint of voiding difficulty and miction pain from October 5, 1991. Excretory urogram, abdominal ultrasound and computed tomographic scan revealed a retrovesical mass which compressed the urinary bladder …

[Comparison of surgical therapy and combined irradiation in rectal cancer--second report. Effect of irradiation and ACNU on the tumor].

Kazuhiro Kimura, Satoshi Tsuchiya, M Yasutomi, T Ohkawa et autres

As part of a joint study on preoperative radiotherapy for developing an optimal mode of rectal cancer therapy, ACNU sensitization was studied in a total of 120 cases, with the cooperation of 48 facilities participating nationwide. The following results were obtained. Improvement …

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[An early phase II study of CPT-11 in gynecologic cancers. Research Group of CPT-11 in Gynecologic Cancers].

Shoji Takeuchi, H Takamizawa, Y Takeda, T Ohkawa et autres

An early Phase II study of CTP-11, a new derivative of Camptothecin, in gynecologic cancers was carried out by a cooperative study group of 9 institutions. Forty-six patients were enrolled, and there were 14 cases of ovarian cancers, 7 of cervical cancer, …

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[An early clinical study of Z-100 in leukopenia caused by radiotherapy].

S Hashimoto, Tsutomu Yanagisawa, Shunsuke Mochizuki, T Ohkawa et autres

The clinical efficacy of Z-100 for the treatment of leukopenia caused by radiotherapy for malignant tumors was evaluated in an early clinical study using three doses, 2, 10 and 20 micrograms. According to the evaluation by investigators and time-course of WBC, the …

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[Comparison of surgical therapy and combined irradiation in rectal cancer--first report, effect of irradiation on the tumor. Study Group of Surgical Therapy and Combined Irradiation in Rectal Cancer].

Kazuhiro Kimura, Syuuji Tuchiya, M Yasutomi, T Ohkawa et autres

In order to establish the best protocol for the treatment of rectal cancers, a cooperative study on preoperative radiation therapy was conducted by 44 institutions in eastern Japan. A total of 166 cases that did not receive preoperative chemotherapy were analyzed, and …

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