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T Hiramoto

Publications and source records attributed to T Hiramoto.

72 records · Page 4Linked to original sources
PubMedDate not supplied

Relative biological effectiveness (RBE) of thermal neutron capture therapy of cultured B-16 melanoma cells preincubated with 10B-paraboronophenylalanine.

An experimental study of the relative biological effectiveness (RBE) of thermal neutron capture therapy (TNCT) for melanoma cell inactivation using 10B1-paraboronophenylalanine (10B1-BPA) was carried out to demonstrate a high therapeutic effect of TNCT, compared with that of fast neutron. Cells preincubated with or without 10B1-BPA at a concentration of 50 micrograms/ml for 20 h were irradiated with 60Co gamma-ray, fast neutron or thermal neutron. The absorbed dose of the cells from thermal neutron was calculated by Kobayashi's model. The D0 value of fast neutron was 1.07 Gy, and the D0S of thermal neutron radiation with or without preincubation of the cells with 10B1-BPA were 0.46 Gy or 0.67 Gy, respectively. The RBEs of fast neutron, thermal neutron beams, and neutron capture therapy relative to 60Co gamma-ray were calculated as 2.78, 4.18, and 6.15 at 0.1 surviving fraction, respectively. These results indicate radiologically that thermal neutron capture therapy using 10B1-BPA is an excellent radiation therapy for malignant melanoma.

Animals↗
PubMedDate not supplied

Pulmonary lymphangiomyomatosis.

Two cases of pulmonary lymphangiomyomatosis are reported and findings of high resolution computed tomography (CT) are described. CT reveals that most lesions appearing reticular or emphysematous on radiographs are actually cysts, and accurately displays the extent and distribution of cystic change of the lung. On high resolution CT, individual cystic walls are much better displayed than on routine 10 mm section CT. Further, it is possible to detect even trivial pleural effusion and mediastinal lymph node swelling by CT.

Adult↗