磁共振弥散加权成像对卵巢囊实性恶性肿瘤的诊断价值分析

Diagnostic value of magnetic resonance diffusion weighted imaging in ovarian cystic solid malig-nant tumors

目的：分析磁共振弥散加权成像在卵巢囊实性良恶性肿瘤鉴别诊断中的应用。方法抽取卵巢恶性肿瘤患者30例作为恶性组，卵巢良性肿瘤30例作为良性组，两组患者均经临床病理证实，入院后行常规 MRI 平扫、增强扫描及 DWI 扫描，记录两组患者实性部分及囊性部分的表观扩散系数（ADC）以及指数表观弥散成像（eADC）。结果恶性组实 ADC 为（0.97±0.23）×10^-3 mm2/ s，低于良性组；实 eADC 为（257.61±89.31）×10^-3 mm2/ s，高于良性组，差异有统计学意义（P ＜0.05）。结论 DWI 在诊断卵巢囊实性良恶性肿瘤鉴别诊断中具有较高的应用价值。

Objective To analyze the application of magnetic resonance diffusion weighted ima-ging（DWI）in differential diagnosis of ovarian cystic solid malignant tumors. Methods Thirty patients with ovarian malignant tumors were selected as the malignant group while the other 30 patients with be-nign ovarian tumor as the benign group. Two groups of patients were confirmed by clinical pathology and received plain scan,and enhanced scan of conventional MRI and DWI scan. The apparent diffusion coef-ficients（ADC）and apparent diffusion imaging indexes（eADC）of the solid and cystic parts in two groups were recorded. Results The ADC of the malignant group was（0. 97 ± 0. 23）× 10^ - 3 mm2 / s,which was lower than that of the benign group,the eADC was（257. 61 ± 89. 31）× 10 ^- 3 mm2 / s,it was higher than that of the benign group,and the differences were statistically significant（ P 〈 0. 05）. Conclusions DWI can be used as the reference of differential diagnosis of ovarian cystic solid malignant tumors and is of high value.