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《Chinese Journal of Medical Imaging Technology》 2010-09
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Fluid-fluid levels in MRI diagnosis of focal lesions in abdomen

CHEN Hua-ping, MENG Zhi-hua, DU Yun, FANG Xian-lai, SHI Hong-ping, ZHU Chao-hui, YE Hua-jing(Department of Radiology, the Affiliated Yue Bei People's Hospital of Medical College of Shantou University, Shaoguan 512026, China)  
Objective To investigate the diagnostic significance of fluid-fluid levels (FFLs) in MRI diagnosis of focal abdominal lesions. Methods Complete clinical and imaging data of 72 patients whose MR image manifestations contained fluid-fluid levels were collected. All patients were divided into 4 groups based on the proportion of the lesion occupied by FFLs: 1/3 (group 1), 1/3—2/3 (group 2), 2/3 (group 3) and complete (group 4). The relationship between the proportion and the lesion's nature were analyzed. Results Pathology and clinical diagnosis revealed 49 benign and 23 malignant tumors. Ovarian lesions accounted for 40.28% (29/72). Totally 12 patients (12/16, 75.00%) of group 1 were malignant, 7 (7/12,58.33%) of group 2 were malignant, and 16 (16/20, 80.00%) of group 3 were benign. All the 24 patients of group 4 were benign. Conclusion FFLs levels in focal lesions of abdomen are more common in ovarian lesions. The larger of the proportion of FFLs within a focal abdominal lesion on MRI, the smaller of the proportion of malignant lesions.
【CateGory Index】: R445.2
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