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Article type: Cover
1999 Volume 55 Issue 6 Pages
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Article type: Cover
1999 Volume 55 Issue 6 Pages
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Article type: Index
1999 Volume 55 Issue 6 Pages
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Article type: Index
1999 Volume 55 Issue 6 Pages
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[in Japanese]
Article type: Article
1999 Volume 55 Issue 6 Pages
I-
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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1999 Volume 55 Issue 6 Pages
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
VI-VIII
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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NOBORU IIDA
Article type: Article
1999 Volume 55 Issue 6 Pages
529-535
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KAZUO AWAI
Article type: Article
1999 Volume 55 Issue 6 Pages
536-541
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Choichiro Kido
Article type: Article
1999 Volume 55 Issue 6 Pages
542-552
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SHIGERU NAKATA, [in Japanese], [in Japanese], [in Japanese], [in Japan ...
Article type: Article
1999 Volume 55 Issue 6 Pages
553-566
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TAKEYUKI HASHIMOTO
Article type: Article
1999 Volume 55 Issue 6 Pages
567-570
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TOSHIKAZU HATAKEYAMA
Article type: Article
1999 Volume 55 Issue 6 Pages
571-575
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JOJI KATO, YOSHIHIKO KAWAMURA
Article type: Article
1999 Volume 55 Issue 6 Pages
577-581
Published: June 20, 1999
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To examine the effects of removing the gastroinal signal in MRCP, investigations were carried out on the combined use of intestine-positive contrast medium FerriSeltz with Ferric ammonium citrate as the main component and high-speed imaging using fast inversion recovery. The contrast effect was significantly elevated to 9.90±1.77 after administration, compared with 5.3±2.45 before administration (P<0.001). The enhancement effect also was significantly elevated to 14.45±3.18 after administration, compared with 3.50±3.10 before administration (p<0.001). These results were obtained because the null point of FerriSeltz aqueous solution (5.97 mmol/1) was in the range of about 150-200 ms. With the present method, adequate suppression of the signal intesity of the digestive tract was obtained relatively easily on MRCP, and the thechnique was found to be effective.
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ETSUKO ISHIDA, KEN-ICHIRO YASUI, AKIYOSHI OTSUKA, SHUICHI YAMAUCHI, KE ...
Article type: Article
1999 Volume 55 Issue 6 Pages
582-587
Published: June 20, 1999
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We studied reduction in patient dose and improvement of image contrast in drip infusion pyelography (DIP) and bone radiography using a copper filter. More suitable x-ray spectra for the K-absorption edge of iodine contrast media were investigated by using various combinations of tube voltage and copper filter. Image contrast and patient dose from 60-70 kV with a copper filter were compared with those at 80 kV without the filter. We found that patient dose could be reduced by 13-40% with the copper filter compared with that for an 80 kV tube voltage without the filter. Image contrast was improved 1.2 times compared with the result for an 80 kV tube voltage without filter. An x-ray spectrum suitable for the object improves image contrast and reduces patient does.
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YOSHIHARU SUKENOBU, MICHIHIRO SASAGAKI, KAZUHIKO SATO, HIROAKI MATSUZA ...
Article type: Article
1999 Volume 55 Issue 6 Pages
588-594
Published: June 20, 1999
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We developed an electronic medical abbreviation dictionary for the Radiology Information System (RIS) in Osaka University Hospital as a support for cognitive processes. We also investigated whether users wished to have this dictionary added to the RIS. The data for the dictionary comprised 4500 abbreviations with their full spellings, Japanese definition, and other explanations. We input these into a computer in text format, then converted the file to Excel format to enable users to alter the contents by themselves. Reference software was developed with Windows 3.1 on Visual BASIC version 4.0 to fit the RIS terminal, which is connected to the 80486 CPU, 33 MHz, 14.3 MB main memory. This software was installed on 21 terminals with sufficient space on their hard disk. These terminals were selected from a total of 60 RIS terminals. One month after installation of the software, we conducted a questionnaire survey to determine (1)the perceived value of the dictionary, (2)the operability of the software, and (3)problems with this new RIS factor. The questionnaire was administered to medical doctors, radiological techicians, and nurses who use our RIS terminals. The results showed that 81% of the users thought the dicitionary was useful. This survey also clearly showed that RIS users greatly appreciated the new dictionary, not only as a labor-saving device, but also as an aid to cognitive processes.
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TSUYOSHI DEJIMA, KOUJI ABE, YUUJI SHIMAMORI
Article type: Article
1999 Volume 55 Issue 6 Pages
595-600
Published: June 20, 1999
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We examined a system that utilizes a personal computer to create anatomical reports, not only as a mere transmission tool from radiation technicians to physicians, but also as a tool for wider applications. We have developed a system that can store information on upper gastrointestinal examinations, echography, and colorectal examinations including reading reports, reading results from radiologists, numbers of films, and images with lesions. Images are stored by means of a digital camera or image scanner. After data from five consecutive years have been input, radiation record ledgers are produced and statistics and summaries can be obtained. In addition, useful information about examination rates by age, prevalence rates of diseases, classification of diseases, and so on, can be obtained. With this system it is possible to review image information and the results of a variety of different examinations on each individual during the most recent five-yera period. Through the total management of personal information, we can easily create plans for subsequent examinations and correlate the results with those of previous examinations, intervals of examinations, and other examinations. It is possible to simplify daily work by liking three systems, i.e., the system that identifies the history of intra-departmental examinations, the system for reviewing other examination results, and the system for simultaneous execution of task management and creating a radiation record ledger. The system, which utilizes a personal computer, is useful for data collection, summation, management of examinees, task management, and so on. In addition, by referring to previous examination records, the accuracy of current examinations appears to be increased.
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Article type: Bibliography
1999 Volume 55 Issue 6 Pages
601-602
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
603-604
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
605-606
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
608-612
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
613-619
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
620-623
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
625-626
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Article type: Appendix
1999 Volume 55 Issue 6 Pages
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Article type: Cover
1999 Volume 55 Issue 6 Pages
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