Medical Imaging and Information Sciences
Online ISSN : 1880-4977
Print ISSN : 0910-1543
ISSN-L : 0910-1543
Volume 18, Issue 3
Displaying 1-5 of 5 articles from this issue
  • Eisaku SAKIHARA
    2001 Volume 18 Issue 3 Pages 114-119
    Published: September 05, 2001
    Released on J-STAGE: August 27, 2012
    JOURNAL FREE ACCESS
    Download PDF (3025K)
  • Kazuo INAMOTO
    2001 Volume 18 Issue 3 Pages 120-124
    Published: September 05, 2001
    Released on J-STAGE: August 27, 2012
    JOURNAL FREE ACCESS
    The new type multiple health checking system (human dock) has been developed by Iseikai Hospital, Osaka, Japan. It has several features. The first one is high quality imaging diagnoses using Electron Beam CT (IMATRON), Multidetector CT (SOMATOM PLUS 4), MRI. Ultrasound and Electron Endoscopies. The second is clinical application of CT virtual endoscopies for stomach and colon composed by the multidetector CT. The third is recording of each examinee's data including imagings on a CD-ROM for personal usage after changing from DICOM format to JPG. In last 18 months,1000 personals are examined by this system. We detected malignant diseases of stomach and others in 6, cerebral aneurysm in 2, coronary calcification in 26.4% of IMATRON examinations, stomach diseases in 60% of gastric endoscopies, polyps in 90% of colon endoscopies, and uterine myomas in 30% of pelvic MRI. CT virtual gastric endoscopies are carried out in 5 examinees and pathological findings are detected in 3. Reporting by CD-ROM is a favorite with examinees for their health improvement by reading it at his/her personal computer. This system is well evaluated as a revolution in the health checking system.
    Download PDF (1153K)
  • Koji YAMAMOTO, Takahiro TAKADA, Hirotomo NAGAOKA, Naoki NAGASAWA
    2001 Volume 18 Issue 3 Pages 125-134
    Published: September 05, 2001
    Released on J-STAGE: August 27, 2012
    JOURNAL FREE ACCESS
    Fostering a cooperative society between family physicians and specialists will be a key to improve the community healthcare. To accomplish this. however, may not be a simple story in Japan, since most of the clinicians working at private clinics have been educated as specialists of some disciplines and are sometimes competitors with each other. Because of the difficulty of preserving the quality of social insurance, the cost-effectiveness of healthcare system has been pursued and the importance of family medicine was recognized. And the primary care has become one of the key educational subjects. The communication system among family physicians and specialists to support the above cooperative society should also be a fundamental infrastructure in future, however, it is rather difficult to create such a system at present since most of the clinics and hospitals have computer systems of their own which were developed without the concept of community healthcare. In this paper we will describe about our project to develop such a communication system which is started this April.2001at Mie prefecture. It is stated that keeping privacy of each clinic and a patient has the crucial importance to get the approval to the development of the system.
    Download PDF (2680K)
  • Yongbum LEE, Toshiaki NAKAGAWA, Takeshi HARA, Hiroshi FUJITA, Shigeki ...
    2001 Volume 18 Issue 3 Pages 135-143
    Published: September 05, 2001
    Released on J-STAGE: August 27, 2012
    JOURNAL FREE ACCESS
    We have been developing a computer-aided diagnosis (CAD) system for chest X-ray CT images. A method that was combined a genetic algorithm (GA) and template matching to detect lung nodules was proposed in our previous study. However, it was difficult to detect the nodules in the apex-of-lung and basis-of-lung parts. In this study, as a new approach of the automatic detection method, a new detection method was proposed using higher-order autocorrelation features. By this method,50 of 80 nodules from 12 cases using Round-Robin method were correctly detected. Moreover,15 nodules undetected by the previous method were included in the successful candidates. It is concluded that the new approach may be effective to improve the sensitivity of our CAD system in helical chest X-ray CT images.
    Download PDF (5235K)
  • Shenglan LI, Takeshi HARA, Yuji HATANAKA, Hiroshi FUJITA, Tokiko ENDO, ...
    2001 Volume 18 Issue 3 Pages 144-153
    Published: September 05, 2001
    Released on J-STAGE: August 27, 2012
    JOURNAL FREE ACCESS
    Since the evaluation is influenced by the case selection, it is necessary to apply some common databases in the performance evaluation. To evaluate our computer-aided diagnosis (CAD) system for detecting masses,320 images from the Mammogaphy Image Analysis Society (MIAS) database in UK were applied in this study. Our algorithm for detecting masses was based on a standard adaptive thresholding technique which had been developed in our group. However, the preliminary result was not as well as those for a Japanese databas e. After we adjusted some thresholding values of our system, a 90% sensitivity with 0.8 false positive (FP) was achieved which indicated that our scheme was effective for the different databases in both Japan and UK. Moreover, the differences between the MIAS and a Japanese database were also discussed.
    Download PDF (3958K)
feedback
Top