Cystic ovarian lesions in SSFP diffusion imaging.
作者信息
Kaji Yasushi, Matsuo Michimasa, Matsuki Mitsuru, Yoshida Masumi, Hayashi Michiharu, Nanno Hidetaka, Koshiyama Masafumi, Fujii Haruko, Maruyama Katsuya, Takizawa Osamu, Sugimura Kazuro
机构信息
Division of MR imaging, Department of Radiology, Tenri Hospital, Kobe University School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.
出版信息
Magn Reson Med Sci. 2002 Dec 15;1(4):183-9. doi: 10.2463/mrms.1.183.
PURPOSE
MR assessments of ovarian cystic lesions are usually based on morphological features, signal intensities and enhancement with contrast media. This study was performed to evaluate the usefulness of the steady-state free precession (SSFP) diffusion imaging of cystic ovarian lesions for analyzing cystic contents.
MATERIALS AND METHODS
Sixty-one ovarian cystic lesions in 37 patients were examined. The diffusion-related coefficient (DRC) and the ratio of the relative apparent diffusion coefficient of the lesion to that of subcutaneous fat tissue (rADC(L)/rADC(F)) were calculated from SSFP diffusion images.
RESULTS
The DRCs and the rADC(L)/rADC(F) ratios in endometrial cysts and in the fatty parts of dermoid cysts were significantly lower than in other cystic tumors.
CONCLUSION
SSFP diffusion imaging can be included in clinical practice to analyze ovarian cystic lesions within a short scan time; the DRC and the rADC(L)/rADC(F) ratio are useful for evaluating cystic contents.
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