| Changes of the normal ovary during menstrual cycle in reproductive age on the diffusion-weighted image. | |
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MedLine Citation:
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PMID: 22592617 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVE: The objective of this study was to investigate changes in magnetic resonance findings of the normal ovary during menstrual cycle on diffusion-weighted image (DWI). METHODS: Magnetic resonance imaging was performed in 9 healthy females at the menstrual, periovulatory, and luteal phases using a 1.5-T unit. Signal intensity (SI) of the ovary on DWI with a b value of 1000 s/mm was visually scored. The ovary-to-muscle contrast ratios on DWI and apparent diffusion coefficient (ADC) values were also evaluated. RESULTS: All the ovaries were identified, and higher SI than the nerve root was identified in 70% (38/54) of the ovaries, although visual scores did not show significant difference among menstrual phases. The mean ADC values (10 mm/s) were 1.71 (SD, 0.27), 1.71 (SD, 0.22), and 1.67 (SD, 0.19) in menstrual, periovulatory, and luteal phases, respectively. No phase-dependent change was observed in contrast ratios and ADC values. CONCLUSION: The normal ovary in fertile period shows high SI enough to be identified on DWI, and observed values are independent of the menstrual cycle. |
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Authors:
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Nobuko Morisawa; Aki Kido; Takashi Koyama; Tomohisa Okada; Masako Kataoka; Shigeaki Umeoka; Koji Fujimoto; Ken Tamai; Kaori Togashi |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of computer assisted tomography Volume: 36 ISSN: 1532-3145 ISO Abbreviation: J Comput Assist Tomogr Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-05-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7703942 Medline TA: J Comput Assist Tomogr Country: United States |
Other Details:
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Languages: eng Pagination: 319-22 Citation Subset: IM |
Affiliation:
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From the *Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto; †Department of Diagnostic Radiology, Osaka Red Cross Hospital, Osaka; and ‡Department of Radiology, Kyoto Katsura Hospital, Kyoto, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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