Japanese Journal of Radiological Technology

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

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Volume 51, Issue 11

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[title in Japanese]

Article type: Cover
1995 Volume 51 Issue 11 Pages Cover7-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109023

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[title in Japanese]

Article type: Cover
1995 Volume 51 Issue 11 Pages Cover8-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109024

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[title in Japanese]

Article type: Index
1995 Volume 51 Issue 11 Pages Toc5-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109025

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[title in Japanese]

Article type: Index
1995 Volume 51 Issue 11 Pages Toc6-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109026

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 51 Issue 11 Pages _i_-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109027

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[title in Japanese]

Article type: Appendix
1995 Volume 51 Issue 11 Pages _ii_-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109028

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[title in Japanese]

Article type: Appendix
1995 Volume 51 Issue 11 Pages _iii_-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109029

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[title in Japanese]

Article type: Appendix
1995 Volume 51 Issue 11 Pages _iv_-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109030

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[title in Japanese]

Article type: Appendix
1995 Volume 51 Issue 11 Pages _v_-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109031

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[title in Japanese]

Article type: Appendix
1995 Volume 51 Issue 11 Pages _vi_-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109032

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PATIENT DOSE REDUCTION USING A HIGH-SENSITIVITY IMAGING PLATE WITH FREQUENCY PROCESSING

SADAMITSU NISHIHARA, KEIKO OHMURA, AKIYOSHI OHTSUKA, KEN-ICHI YOSHIDA, ...

Article type: Article
1995 Volume 51 Issue 11 Pages 1618-1622
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109033

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There are two types of imaging plate (HR and ST) in Fuji Computed Radiography System. We studied the reduction in patient dose using ST with equivalent image qualities through the use of image processing (ST_pro) for HR. As a result, when the image quality of HR and ST_pro were almost the same, the incident dose of HR and ST_pro were about 0.13 μC/kg and 0.09 μC/kg respectively. Therefore, the patient dose using ST_pro is expected about 30% reduction to HR.

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IMAGE EVALUATION OF A NEW BLUE EMISSION SCREEN FILM SYSTEM

KEIKO OHMURA, SADAMITSU NISHIHARA, SHUICHI YAMAUCHI, KEN-ICHI YOSHIDA, ...

Article type: Article
1995 Volume 51 Issue 11 Pages 1623-1628
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109034

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We studied the image qualities of Dupont Ultra-Vision (U-V) systems. These systems were compared with Fuji HR systems. U-V screens use a high density yttrium tantalate phosphor emitting an ultraviolet ray. Basic imaging properties in both systems, such as characteristic curves, relative speeds, X-ray attenuation rates, crossover, MTFs and Wiener spectra were measured. MTFs of U-V systems were significantly higher than those of HR systems. Wiener spectra of U-V systems were inferior to those of HR systems. The visual image qualities of U-V systems were evaluated by observer performance tests using "Paired preference test". Visual evaluation of bone radiographs using U-V systems showed that they were superior to HR systems. These visual evaluation results agreed with basic imaging properties.

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SCREENING MAMMOGRAPHY WITH A SEMI-MAGNIFICATION TECHNIQUE

EMIKO ISHIDA, TOMOYUKI YAMAMOTO, SHIGERU SANADA, TAKASHI MIZUSHIMA, YA ...

Article type: Article
1995 Volume 51 Issue 11 Pages 1629-1634
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109035

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We evaluated the image quality and the effects of scatter decreasing using various magnification factors, so as to investigate the usefulness of a semi-magnification technique for mammographic. The measured scatter fraction indicated that anti-scatter efficiency of this semi-magnification technique was inferior to that of using a grid. An observer performance test, using RMI-156 breast phantom images, was carried out using 7 radiological technologists. The results indicated that this semi-magnification technique (factor 1.2 and 1.3) with a grid was significantly better to the non-magnification technique (factor 1.0). This was probably bacause the effective noise was reduced and the detectabilities for lesions were improved due to radiographic magnification. Considering the image quality and the object area that can be projected on a film, the technique using magnification factor of 1.2 with a grid was the most suitable for screening mammographic screening.

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DIGITAL IMAGE ANALYSIS OF X-RAY TELEVISION WITH AN IMAGE DIGITIZER

YASUO MOCHIZUKI, HISAHIKO AKAIKE, HITOSHI OGAWA, YUKISHIGE KYUMA

Article type: Article
1995 Volume 51 Issue 11 Pages 1635-1640
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109036

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When video signals of X-ray fluoroscopy were transformed from analog to digital ones with an image digitizer, their digital characteristic curves, pre-sampling MTF's and digital Wiener spectral could be measured. This method was advant ageous in that it was able to carry out data sampling because the pixel values inputed could be verified on a CRT. The system of image analysis by this method is inexpensive and effective in evaluating the image quality of digital system. Also, it is expected that this method can be used as a tool for learning the measurement techniques and physical characteristics of digital image quality effectively.

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Future Trend of MRI Systems

EIJI YOSHITOME

Article type: Article
1995 Volume 51 Issue 11 Pages 1641-1646
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109037

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[title in Japanese]

JUNICHIRO TORIWAKI

Article type: Article
1995 Volume 51 Issue 11 Pages 1647-1654
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109038

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[title in Japanese]

KENJI KUMAKURA

Article type: Article
1995 Volume 51 Issue 11 Pages 1655-1660
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109039

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[title in Japanese]

HISASHI MEKOSHI

Article type: Article
1995 Volume 51 Issue 11 Pages 1661-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109040

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[title in Japanese]

KOICHI KAWAMURA

Article type: Article
1995 Volume 51 Issue 11 Pages 1661-1664
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109041

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[title in Japanese]

TADASHI TAMIYA

Article type: Article
1995 Volume 51 Issue 11 Pages 1664-1668
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109042

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[title in Japanese]

TATSUSHI TOMOMITSU

Article type: Article
1995 Volume 51 Issue 11 Pages 1668-1670
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109043

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[title in Japanese]

SHUJI TANAHASHI

Article type: Article
1995 Volume 51 Issue 11 Pages 1670-1675
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109044

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[title in Japanese]

KAZUTAKA MASUDA

Article type: Article
1995 Volume 51 Issue 11 Pages 1676-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109045

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[title in Japanese]

HISASHI MAEKOSHI, [in Japanese], [in Japanese], [in Japanese], [in Jap ...

Article type: Article
1995 Volume 51 Issue 11 Pages 1677-1680
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109046

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[title in Japanese]

TORU KIKUCHI

Article type: Article
1995 Volume 51 Issue 11 Pages 1681-1684
Published: November 01, 1995
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DOIhttps://doi.org/10.6009/jjrt.KJ00003109047

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[title in Japanese]

NOBUYOSHI OYA

Article type: Article
1995 Volume 51 Issue 11 Pages 1685-1693
Published: November 01, 1995
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DOIhttps://doi.org/10.6009/jjrt.KJ00003109048

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[title in Japanese]

EIKI HINO

Article type: Article
1995 Volume 51 Issue 11 Pages 1693-1695
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109049

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[title in Japanese]

NOBORU YAMAMOTO

Article type: Article
1995 Volume 51 Issue 11 Pages 1696-1699
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109050

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[title in Japanese]

YOSHIO ICHIBA

Article type: Article
1995 Volume 51 Issue 11 Pages 1699-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109051

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1700-1704
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109052

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[title in Japanese]

Article type: Appendix
1995 Volume 51 Issue 11 Pages 1705-1706
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109053

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 51 Issue 11 Pages 1707-1708
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109054

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1709-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109055

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1709-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109056

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1709-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109057

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1709-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109058

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 51 Issue 11 Pages 1709-1718
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109059

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1710-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109061

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1710-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109062

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 51 Issue 11 Pages 1710-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109063

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1710-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109064

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1711-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109065

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1711-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109066

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1711-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109067

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1712-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109068

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1712-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109069

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1712-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109070

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1995 Volume 51 Issue 11 Pages 1712-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109071

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[title in Japanese]

[in Japanese]

Article type: Article
1995 Volume 51 Issue 11 Pages 1712-1713
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109072

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[title in Japanese]

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

Article type: Article
1995 Volume 51 Issue 11 Pages 1713-
Published: November 01, 1995
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109073

JOURNAL FREE ACCESS

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