Japanese Journal of Radiological Technology

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

Browse

Search
Browse

All issues

Volume 52, Issue 12

Displaying 1-26 of 26 articles from this issue

Download citation

Show all abstracts

[title in Japanese]

Article type: Cover
1996 Volume 52 Issue 12 Pages Cover10-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109472

JOURNAL FREE ACCESS

Download PDF (3033K)
[title in Japanese]

Article type: Cover
1996 Volume 52 Issue 12 Pages Cover11-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109473

JOURNAL FREE ACCESS

Download PDF (3033K)
[title in Japanese]

Article type: Index
1996 Volume 52 Issue 12 Pages Toc7-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109474

JOURNAL FREE ACCESS

Download PDF (37K)
[title in Japanese]

Article type: Index
1996 Volume 52 Issue 12 Pages Toc8-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109475

JOURNAL FREE ACCESS

Download PDF (34K)
[title in Japanese]

[in Japanese]

Article type: Article
1996 Volume 52 Issue 12 Pages I-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109476

JOURNAL FREE ACCESS

Download PDF (189K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages II-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109477

JOURNAL FREE ACCESS

Download PDF (84K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages III-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109478

JOURNAL FREE ACCESS

Download PDF (49K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages IV-XXXV
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109479

JOURNAL FREE ACCESS

Download PDF (4135K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages XXXVI-XXXIX
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109480

JOURNAL FREE ACCESS

Download PDF (182K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages XL-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109481

JOURNAL FREE ACCESS

Download PDF (74K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages XL-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109482

JOURNAL FREE ACCESS

Download PDF (74K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages XLI-XLV
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109483

JOURNAL FREE ACCESS

Download PDF (401K)
Fundamental Studies of Oral Contrast Agents for MR : Comparison of Manganese Agent and Iron Agent

OSAMU FUJITA, KUMIKO HIRAISHI, YOSHITO SUGINOBU, MASAYASU TAKEUCHI, IS ...

Article type: Article
1996 Volume 52 Issue 12 Pages 1613-1618
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109484

JOURNAL FREE ACCESS

Show abstractHide abstract

We investigated and compared signal intesity and the effect of imaging the upper abdomen with blueberry juice (B. J. ), a Mn agent utilizing the properties of paramagnetic metals, and FerriSeltz (F. S.), an iron agent. Since the relaxation effect was much stronger with B. J. than with F. S., the signal intensity required of a peroral contrast agent was able to be obtained at a much lower concentration of B. J. In imaging the upper abdomen, B. J. had a positive effect on imaging in T1-weighted images, and a negative effect in T2-weighted images. F. S. had a positive imaging effect in both, and because it showed extremely high signals in T2-weighted images, motion artifact arose.

View full abstract

Download PDF (914K)
Energy-dependent Responses of Cadmium-Telluride (CdTe) Detectors to X-ray Photon Beams

HIDEKI KATO, MASATOSHI TSUZAKA, SHUJI KOYAMA, HISASHI MAEKOSHI, SHOICH ...

Article type: Article
1996 Volume 52 Issue 12 Pages 1619-1626
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109485

JOURNAL FREE ACCESS

Show abstractHide abstract

The Cadmium-Telluride (CdTe) semiconductor, which can be used at normal temperatures without cooling, was recently developed for the measurement of X-ray spectra. In this paper, we calculated the energy-dependent responses of CdTe semi-conductor detectors to X-ray photon beams by means of the Monte Carlo simulation. The CdTe semiconductor showed higher K-escape fractions and lower photo-peak efficiencies than the high purity Germanium (HPGe) semiconductor that has generally been used for X-ray spectra measurements. Therefore, it is assumed that the output spectra measured by the CdTe detector are more distorted than those measured by the HPGe detector. The X-ray spectra measured by CdTe semiconductor detectors must be corrected to account for the energy dependent response of CdTe.

View full abstract

Download PDF (969K)
Research on a New Oral Contrast Agent for Abdominal MRI Using Free Manganese Ion

HIDEO HASEGAWA, OSAMU FUJITA, KUMIKO HIRAISHI, ISAMU NARABAYASHI, TOSH ...

Article type: Article
1996 Volume 52 Issue 12 Pages 1627-1632
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109486

JOURNAL FREE ACCESS

Show abstractHide abstract

Manganese chloride (Mn : 3mg/100g) aqueous solution with hydragenated oligosaccharide and xanthan gum (T_1 : 0.1sec, T_2 : 0.03sec at 0.5T) functions in gut as a positive contrast agent on MR T_1-weighted images and a low signal component on MR T_2-weighted images. The manganese in the solution functions as a contrast agent under free manganese ion (Mn^<2+>). Further, the solution has special characteristics in terms of MRI signal intensity and relaxation time that are equal to those of blueberry juice, which performs as an effective contrast agent on T_1-and T_2-weighted images, and functions as a contrast agent in vitro and in vivo.

View full abstract

Download PDF (1115K)
Receiver Operating Characteristic Analysis of Single Photon Emission Computed Tomography Images : Effect of Low Pass Filter Processing with Different Cut-off Frequencies on Signal Detectability

SHINJI KAWAMURA, SHIGERU SHIMOSHINBARA, HIROSHI INATSU

Article type: Article
1996 Volume 52 Issue 12 Pages 1633-1637
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109487

JOURNAL FREE ACCESS

Show abstractHide abstract

We studied the image detectability of single photon emission computed tomography (SPECT) quantitatively with the receiver operating characteristic (ROC) using the method of continuously-distributed test result. These images were processed using a low pass filter with differently arranged cut-off frequency values, on the other hand, other processes were kept constant. As a result, in general the highest detectability of cold lesions with 10mm and 15mm diameter signals were at 0.18cycles/pixel (c/p) and 0.15c/p of cut-off frequency. Otherwise, the highest detectability of the signal location was at 0.15c/p or 0.12c/p of cut-off frequency when the distance of the signal location to the center of the phantom was less than 8cm. At the border of the phantom, peak detectability was shown to be 0.20c/p. In conclusion, the detectability of signal locations differed at nearby center and border of the phantom when when the value of the cut-off frequency arranged by low pass filter was changed.

View full abstract

Download PDF (795K)
Effect of Water Loading on Bone Scintigraphy with Tc-99m HMDP

SEIJI KAWAMURA, NORIYOSHI UMEZASKI, HIDEMICHI KAWATA, TUGIO MATUFUJI, ...

Article type: Article
1996 Volume 52 Issue 12 Pages 1638-1641
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109488

JOURNAL FREE ACCESS

Show abstractHide abstract

The present study was performed to evaluate quality of bone scintigraphy in patients with and without water loading, Patients wer divided into two groups ; group I (n=19) was loaded water. Group I patients were loaded water within 5min after Tc-99m HMDP injection. Group II (n=19) was not loaded water. Group II patients were limited in water in take until the acquisition of radionuclide data. Bone scintigraphy was obtained about 3.3 hr after radiotracer administrarion. Regions of interest were placed manually ober those of whole-body, femoral bone, rib and soft tissue. The average counts of whole-body were 712322±121701 in group. and 854631±167015 in group II. The results were significantly different between groups I and II (p<0.05). Further, the ratio of average pixel counts in femoral bone and rib against soft tissue showed a significant difference between groups I and II (p<0.05). In conclusion, our data emphasize that water loading after Tc-99m HMDP injection may contribute to improve the scintigraphic contrast.

View full abstract

Download PDF (501K)
Universal Utilizing Medical Imaging Data

Hiroyuki Komuro

Article type: Article
1996 Volume 52 Issue 12 Pages 1642-1646
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109489

JOURNAL FREE ACCESS

Download PDF (966K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages 1647-1648
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109490

JOURNAL FREE ACCESS

Download PDF (498K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages 1649-1650
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109491

JOURNAL FREE ACCESS

Download PDF (136K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages 1651-1656
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109492

JOURNAL FREE ACCESS

Download PDF (679K)
New Member List

Article type: Appendix
1996 Volume 52 Issue 12 Pages 1657-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109493

JOURNAL RESTRICTED ACCESS

Show abstractHide abstract

To protect personal information, PDF files cannot be viewed.

View full abstract

Download PDF (42K)
[title in Japanese]

Article type: Index
1996 Volume 52 Issue 12 Pages 1658-1663
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109494

JOURNAL FREE ACCESS

Download PDF (459K)
[title in Japanese]

Article type: Index
1996 Volume 52 Issue 12 Pages 1664-1667
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109495

JOURNAL FREE ACCESS

Download PDF (287K)
[title in Japanese]

Article type: Appendix
1996 Volume 52 Issue 12 Pages 1668-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109496

JOURNAL FREE ACCESS

Download PDF (53K)
[title in Japanese]

Article type: Cover
1996 Volume 52 Issue 12 Pages Cover12-
Published: December 20, 1996
Released on J-STAGE: June 29, 2017

DOIhttps://doi.org/10.6009/jjrt.KJ00003109497

JOURNAL FREE ACCESS

Download PDF (561K)

feedback

Top

Register with J-STAGE for free!