| Project/Area Number |
12670883
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Radiation science
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| Research Institution | Saga Medical School |
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Principal Investigator |
NAKAZONO Takahiko (2001-2002) SAGA MEDICAL SCHOOL, RADIOLOGY, ASSITANT PROFESSOR, 医学部, 助手 (70325611)
松尾 義朋 (2000) 佐賀医科大学, 医学部, 助手 (30209506)
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| Co-Investigator(Kenkyū-buntansha) |
KUDO Sho SAGA MEDICAL SCHOOL, RADIOLOGY, PROFESSOR, 医学部, 教授 (50161641)
MIZUGUCHI Masanobu SAGA MEDICAL SCHOOL, RADIOLOGY, LECTURER, 医学部, 講師 (50219622)
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| Project Period (FY) |
2000 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2002: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 2001: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2000: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | MR Imaging / endorectal coil / prostate cancer / uterine cervical cancer / rectal cancer |
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| Research Abstract |
We obtained and evaluated MR images of prostate cancer, uterine cervical cancer, and rectal cancer using a endorectal coil combined with phased array coils. Concominant use of endorectal coil improved signal to noise ratio significantly. Small lesions and tumor invasion (T-staging) were more accurately demonstrated by this coil combination compared with phased array coils only. T2-weighted images were useful in detection of prostate cancer and evaluation of its extracapsular invasion. Dynamic study was useful in detection of uterine cervical cancer and its T-staging. On rectal cancer, T2-weighted images were useful to evaluate of the rectal wall layer and T-staging. T2-weighted images and dynamic study together improved the diagnostic accuracy. Endorectal coil also improved diagnostic accuracy of tumor inavasion to other pelvic organs. Endorectal coil may also be useful to evaluate bladder tumor and lower uretheral tumors near the rectum. Endorectal coils are a little too large at the moment and cause patients discomforts. We need to improve the size and shape of endorectal coil. We would like to accumulate more cases and evaluate the usefulness of endorectal coil.
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