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Volume 37, Issue 7
Displaying 1-13 of 13 articles from this issue
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Shigeaki MATSUMOTO, Hisanobu KOBAYASHI1988 Volume 37 Issue 7 Pages 375-379
Published: July 15, 1988
Released on J-STAGE: September 07, 2010
JOURNAL FREE ACCESSTwo parallel plate ionization chambers A and B were constructed to remove the wall effect and the polarity effect. The air in chamber A was kept dry and the air in chamber B was regulated at various humidities and then the differences in the ionization currents between the chambers A and B were measured in the absolute humidity ranging up to 30 g/m3 (80% in relative humidity at 35°C) in the atmospheric pressure. The differences were converted into the values at the constant temperature and pressure because the differences were due to the amount of recombination of positive and negative ions generated by water vapor and the amount was proportional to the square of the pressure divided by the temperature. The relation between the difference converted and the absolute humidity was obtained and was almost independent of the temperature and the atmospheric pressure. The absolute humidity could be measured with an accuracy of 2 %.View full abstractDownload PDF (419K) -
albumin (99mTc-HSA) for Cardiac Blood Pool lmagingNobuhisa MABUCHI, Tatsumi HAMADA, Kinji ISHIKAWA, Taro SAKASHITA, Yosh ...1988 Volume 37 Issue 7 Pages 380-386
Published: July 15, 1988
Released on J-STAGE: July 21, 2010
JOURNAL FREE ACCESS99mTc-HSA-D has been developed as a new blood pool scanning agent. Clinical comparison of 99mTc-HSA-D and 99mTc-HSA was made in 16 cases. The activity concentration of 99mTc in blood was measured during 2 hours after the injection in five cases.99mTc-HSA-D showed higher concentration compared to 99mTc-HSA with the passage of time. Quantitative analysis of contrast between left ventricle and septum was performed on end diastolic frames of gated images 10 minutes after the injection. There was no obvious difference between 99mTc-HSA-D and 99mTc-HSA. The subjective comparison of detectability of lesions between the two agents was performed on three directional gated images. 99mTc-HSA-D was superior to 99mTc-HSA, because the images of the latter deteriorated with the passage of time. On anterior view images 1 hour after the injection, left ventricle/lung and abdominal aorta/background count ratios were greater for 99mTc-HSA-D in many cases. There was no obvious difference in liver/background and kidney/background count ratios between the two agents. Urinary excretion of 99mTc was considerably lesser for 99mTc-HSA-D. The results indicated that 99mTc-HSA-D was superior to 99mTc-HSA for cardiac blood pool imaging.View full abstractDownload PDF (765K) -
Yasunao MIYAZAWA, Takuji KOJIMA, Takanobu SHIOKAWA1988 Volume 37 Issue 7 Pages 387-389
Published: July 15, 1988
Released on J-STAGE: September 07, 2010
JOURNAL FREE ACCESSThe linearity for dose response and the dilution technique of deeply colored solution and others in titanium sulfate dosimeter were investigated.
The dosimeter is a 0.01 M titanium sulfate solution saturated with nitrogen.
All photometric measurements of titanium complex produced by irradiation were carried out at a wavelength of 410 nm.
Dosimeter solutions were stable for 1080h at 25°C after irradiation.
The dosimetry was not affected entirely by dose rates in the range of 104-106 R h-1, but affected considerably by irradiation temperatures.
The dilution of deeply colored dosimeter solutions produced by high γ-ray dose irradiation was carried out succesfully using unirradiated dosimeter solutions (0.01 MTi (S04) 2 and 1N H2SO4) .
This dosimeter saturated with nitrogen makes it possible to determine high γ-ray doses in the range from 104-106 Gy in accuracy ± 5 %.View full abstractDownload PDF (376K) -
Masakazu FURUTA, Tadashi KATAYAMA, Hirokazu TORATANI, Atsuhiko TAKEDA1988 Volume 37 Issue 7 Pages 390-393
Published: July 15, 1988
Released on J-STAGE: September 07, 2010
JOURNAL FREE ACCESSIn spite of the wholesomeness acceptance of irradiated foods by the FAO/IAEA/ WHO Joint Expert Committee on Food Irradiation 1981, there are some concerns about its safety, in which the induced radioactivity in the irradiated foods is the matter of primary concern. It is, therefore, very important to show clear data of radioactivity in irradiated foods to the public in order to clear up their misunderstanding. Especially for irradiated spices, this is an urgent problem because they are expected to circulate in the international market in the near future. Therefore, in this study, the authors tried to examine whether or not radioactivity could be induced in the black pepper irradiated with 10 MeV electrons theoretically and experimentally.
For the theoretical evaluation, elemental composition of the sample were analyzed and photonuclear reactions which could produce radioactivity in the sample were investigated based on the data already published. Then the sample was irradiated with 10 MeV electrons from the linear accelerator and radioactivity was measured by gammaray spectrometry. As a result, the pattern of gammaray spectra was all the same between irradiated sample and background.View full abstractDownload PDF (426K) -
—User Input Processing System—Shin ENOSAWA, Toshirou TSUKAMOTO, Katsuji CHIKUI, Yuuichi HASEGAWA, Hi ...1988 Volume 37 Issue 7 Pages 394-397
Published: July 15, 1988
Released on J-STAGE: September 07, 2010
JOURNAL FREE ACCESSWe have developed an automated system for regulating access to a potentially hazardous facility, the radioisotope laboratory, and for recording radioisotope use. A feature of this system is that information entered by each user is directly compiled to a final document. This system is easily implement and has functioned without any problems. It has lead to a drastic reduction in labor and provides accurate documents in the management of a radioisotope laboratory.View full abstractDownload PDF (471K) -
Kazutami TORIZUMI, Hirofumi AIBATA, Shigeyuki KIJI, Akitaka UEYOSHI, Y ...1988 Volume 37 Issue 7 Pages 398-401
Published: July 15, 1988
Released on J-STAGE: September 07, 2010
JOURNAL FREE ACCESSThe accumulation rate and velocity of99mTc-hydroxymethylene diphosphonate (99mTc-HMDP) in hip joints were determined within four minutes after a bolus of injection of 99mTc-HMDP in the patients with hip joint disorders. There exist a significant relationship between accumulation velocity of 99mTc-HMDP in the affected joint and serum osteocalcin in the patients with eight cases of degenerative osteoarthropathy and six cases of femoral necrosis. This result indicates that the accumulation velocithy of 99mTc-HMDP in the affected joint is likely to become a marker of bone turnover in hip jiont disorder.View full abstractDownload PDF (1965K) -
Keisuke KANAO, Minoru HONDA, Shizumori ISHIHARA, Hatsuko MORIUMA, Tiho ...1988 Volume 37 Issue 7 Pages 402-405
Published: July 15, 1988
Released on J-STAGE: September 07, 2010
JOURNAL FREE ACCESSTwo-site immunoradiometric assey (IRMA) for human parathyrin (PTH1-84) is specific for the intact, secreted, biologically active 84 amino peptide. This system incorporates two-different polyclonal antibodies to human intact PTH and has several technical advantages for use. This assey could detect the wide range of in patient with hypo-, hyperparathyroidism, chronic renal failure and hyper calcemia with malignancy, especially distinguishing the level of human intact PTH in hypoparathyroidism from in normal.View full abstractDownload PDF (413K) -
Kazutami TORIZUMI, Masayuki YASUI, Akitaka UEYOSHI, Eiji SHIMIZU, Yuki ...1988 Volume 37 Issue 7 Pages 406-409
Published: July 15, 1988
Released on J-STAGE: September 07, 2010
JOURNAL FREE ACCESSLevels of parathyroid hormone (PTH) and osteocalcin in hypomagnesemic sera of chronic alcoholism patients were carried out to evaluate the roles of chronic alcohol poisoning on bone metabolism. Serum γ-GTP activity showed inverse relationships among serum Mg and osteocalcin in these patients and PTH levels was also more decreased in these patients than in the health subjects. These results indicated that the direct actions of alcohol might be brought about the deterioration of bone metabolism, due to being induced to the decrease of serum PTH and osteocalcin levels by chronic alcohol poisoning.View full abstractDownload PDF (417K) -
Kazutami TORIZUMI, Ryusaku YAMADA, Masayuki YASUI, Eiji SHIMIZU, Yukih ...1988 Volume 37 Issue 7 Pages 410-413
Published: July 15, 1988
Released on J-STAGE: December 13, 2010
JOURNAL FREE ACCESSRelative bone mineral content in the lumbar spine was measured by phantom B-MAs with the apparatus of computerized tomography in order to study the relationships between bone mineral content with age and parathyroid hormone in sera of randamized out- and in- patients and the hemodialysis patients.
There exists the significant difference between mal and female in the loss of bone mineral content of three groups.View full abstractDownload PDF (395K) -
Nagao IKEDA, Riki SEKI, Mina KAMEMOTO, Makiko OTSUJI1988 Volume 37 Issue 7 Pages 414-415
Published: July 15, 1988
Released on J-STAGE: December 13, 2010
JOURNAL FREE ACCESSDownload PDF (210K) -
—Trial in OPRRI—Atsuhiko TAKEDA1988 Volume 37 Issue 7 Pages 416-422
Published: July 15, 1988
Released on J-STAGE: July 21, 2010
JOURNAL FREE ACCESSDownload PDF (922K) -
Kunio YAMANE1988 Volume 37 Issue 7 Pages 423-433
Published: July 15, 1988
Released on J-STAGE: July 21, 2010
JOURNAL FREE ACCESSDownload PDF (5375K) -
1988 Volume 37 Issue 7 Pages A49P-A70M
Published: July 15, 1988
Released on J-STAGE: July 21, 2010
JOURNAL FREE ACCESSDownload PDF (3372K)
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