Japanese Journal of Radiological Technology

Online ISSN : 1881-4883
Print ISSN : 0369-4305
ISSN-L : 0369-4305

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Volume 42, Issue 4

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[title in Japanese]

Article type: Cover
1986 Volume 42 Issue 4 Pages Cover10-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001357994

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[title in Japanese]

Article type: Cover
1986 Volume 42 Issue 4 Pages Cover11-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001357995

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[title in Japanese]

Article type: Index
1986 Volume 42 Issue 4 Pages Toc4-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001357996

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[title in Japanese]

Article type: Appendix
1986 Volume 42 Issue 4 Pages App9-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001357997

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STUDIES ON FIELD FACTORS FOR 10 MV X-RAY IRREGULAR FIELD IRRADIATIONS

HIDEKI KATO

Article type: Article
1986 Volume 42 Issue 4 Pages 512-517
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001357998

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In this report, we analyzed the field factors for the 10 MV X-ray irregular fields using a linear accelerator. We compared the field factors and TMRs at the same depth for two irregular fields of the same shape by means of (1) lead blocks and (2) installed multi-leaf collimator. There were no significant differences in either of the TMRs, and the TMRS were in good agreement with the TMR regarding their equivalent square field. On the other hand, there were significant differences in both the field factors, and the field factor for the lead block irregular fields were greater. From the results of this experiment, we are of the opinion that in routine dose calcultion, it is better to use field factors for the open fields in the case of the lead block irregular fields, and to use field factors for the equivalent square fields in the case of the irregular fields by means of multi-leaf collimator.

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A COMPARATIVE STUDY OF RADIONUCLIDE CISTERNOGRAPHY AND X-CT WITH METRIZAMIDE IN CHILDREN.

KUNIHIKO MOROZUMI, MASAMI HASHIMOTO, HARUYUKI KUROKAWA, YUKIHIRO MATSU ...

Article type: Article
1986 Volume 42 Issue 4 Pages 518-524
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001357999

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CSF dynamics were analysed in 17 children with subdural effusion or with hydrocephalus using radionuclide cisternography and X-CT with metrizamide in order to compare the results obtained using the two methods. Count rates and densities in ROIs set on the cisterna magna, basal cistern, parasagittal region and lateral ventricle were recorded at 3 hours, 6 hours, 24 hours and 48 hours after intrathecal administration of 0.5〜1mCi ^111In DTPA for radionuclide cisternography and 170 mgI/ml metrizamide for X-CT with metrizamide respectively. Serial images of radionuclide cisternography were found to be useful and satisfactory for detecting reflux. On the other hand, serial X-CT with metrizamide was beneficial for clarifying the pathophysiology of CSF circulation with accurate monophologic definition. We concluded that a combination of radionuclide cisternography and X-CT with metrizamide was necessary for accurate examination to evaluate CSF circulatory disturbance.

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A STUDY ON THE CALCULATION METHOD OF THE IMAGE LAYER FOR ORTHOPANTOMOGRAPH MODEL OP-3

TAIZO SANADA, AKIRA KITAYAMA, TATSUSHI TOMOMITSU, KOUSHI ISHII, HIROO ...

Article type: Article
1986 Volume 42 Issue 4 Pages 525-530
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358000

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Orthopantomograph Model OP-3 (Siemens) has sliding transitions (a continuously moving X-ray beam rotation center) between the anterior and lateral X-ray beam rotation centers. In Orthopantomograph Model OP-3, about 60 percent of the image layer is reproduced during these sliding transitions. We have considered formulae for the position of the X-ray beam rotation center and for the ratio between the angular velocity of the film in relation to the beam and the angular velocity of the beam in relation to the object, during sliding transition, by analyzing the mechanism of the sliding transition. Consequently, the whole image layer included during sliding transition for Orthopantomograph Model OP-3 was able to be calculate utilizing our formulae.

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THREE-DIMENSIONAL DISPLAY OF MTF IN TOMOGRAPHY

MASAKATSU HATAGAINA, KENJI KISHIMOTO

Article type: Article
1986 Volume 42 Issue 4 Pages 531-536
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358001

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Modulation transfer function (MTF) of the tomography was measured by the slit method and the both sides of the slit were shaved to an angle of 45 degrees. MTF was expressed by a three-dimensional display which has been described in our previous paper, as a function of the distance from the object plane. Moreover, the area of the MTF was calculated and was plotted as a function of the distance from the object plane. We analyzed the blurred images made with hypocyclodial, circular and zonographic motions by use of these methods. It is concluded that the three-dimensional display and the area curve were very useful for expressing the MTF of the tomography and for its analysis.

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TRIALS OF IMAGE EVALUATION BY THE "ANALYSIS OF VARIANCE" METHOD

SHIGEFUMI KADOHISA, KISHIO MATSUSHIMA, ISAO NAGAYA, KEIJI INAMURA, SEI ...

Article type: Article
1986 Volume 42 Issue 4 Pages 537-542
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358002

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The evaluation of experimental results should be based on the experimental design along with due consideration given to experimental errors. We found the value of the errors and introduced into image evaluation the analysis of variance method, which is one of statistical methods effective for error evaluation. Our present experiment has been made on : (1) The effect of the medium speed intensifying screen and spatial frequency regarding the M.T.F. ; and (2) The effect of the developing temperature and density on the R.M.S. granularity. We discussed the results with the use of the statistical method in contrast with not using it.

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CHEST-HOLDER-A NOVEL POSITIONING DEVICE IN THE CHEST RADIOGRAPHY.

YOSHIFUMI MAKlNO, KIYOSHI OGURO, YOSHlNOBU SAWA, MAKOTO UGAZIN, SETSUO ...

Article type: Article
1986 Volume 42 Issue 4 Pages 543-547
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358003

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Since October 1984, we have developed the"Chest-holder", a novel positioning device for the chest radiography, especially of great benefit for patients with difficulty in standing in an upright position. It consists of three parts holding-pads, supporting rods, and a simultaneous adjuster. This device enables the hospital technicians to easily attain the appropriate position of the patient, thereby reducing patient-assistance and X-ray exposure to the radiographic technicians. Furthermore, it was demonstrated that the "Chest-holder"was even useful regarding radiography for normal subjects as it provided great savings in the setup time.

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 548-564
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358004

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 565-573
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358005

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[title in Japanese]

Article type: Bibliography
1986 Volume 42 Issue 4 Pages 574-576
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358006

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[title in Japanese]

Article type: Appendix
1986 Volume 42 Issue 4 Pages 577-578
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358007

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[title in Japanese]

[in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 579-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358008

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[title in Japanese]

[in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 579-580
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358009

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 580-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358010

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[title in Japanese]

[in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 580-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358011

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 580-581
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358012

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 581-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358013

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 581-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358014

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[title in Japanese]

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Article type: Article
1986 Volume 42 Issue 4 Pages 581-582
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358015

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 582-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358016

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[title in Japanese]

[in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 582-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358017

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 582-583
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358018

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 583-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358019

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 583-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358020

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 583-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358021

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 583-584
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358022

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 584-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358023

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[title in Japanese]

[in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 584-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358024

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[title in Japanese]

[in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 584-585
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358025

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 585-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358026

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 585-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358027

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 585-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358028

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 585-586
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358029

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 586-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358030

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 586-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358031

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[title in Japanese]

[in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 586-587
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358032

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 587-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358033

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[title in Japanese]

[in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 587-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358034

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 587-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358035

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 587-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358036

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 587-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358037

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 587-588
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358038

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1986 Volume 42 Issue 4 Pages 588-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358039

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 588-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358040

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 588-589
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358041

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 589-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358042

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Article type: Article
1986 Volume 42 Issue 4 Pages 589-
Published: July 01, 1986
Released on J-STAGE: June 28, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00001358043

JOURNAL FREE ACCESS

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