磁共振扩散加权成像在诊断卵巢恶性肿瘤中的价值

目的：探讨磁共振扩散加权成像（DWI）在诊断卵巢恶性肿瘤中的价值。方法56例经病理证实的卵巢肿瘤患者（33例卵巢恶性肿瘤，23例卵巢良性肿瘤）行M RI及DWI检查，测量良恶性肿瘤的囊、实性部分的ADC值并进行分析。结果卵巢恶性肿瘤实性部分ADC值（1．68±0．37）×10－3 mm2／s]明显低于卵巢良性肿瘤实性部分（3．51±0．53）×10－3 mm2／s]（P＜0．05）；而卵巢恶性肿瘤囊性部分ADC值（5．34±0．54）×10－3 mm2／s]与卵巢良性肿瘤囊性部分（5．89±0．37）×10－3 mm2／s]没有显著性差异（P＞0．05）。结论磁共振DWI的定量分析有助于卵巢恶性肿瘤的诊断及鉴别诊断。

The diagnostic value of MRI diffusion weighted imaging in ovarian carcinoma

Objective To investigate the effect of DWI in diagnosing ovarian carcinoma .Methods MRI and DWI were performed in 33 patients with ovarian carcinoma and 23 patients with benign ovarian tumor proved by pathology ,respectively .ADC values of the cystic components and the solid components were respectively measured in ovarian carcinoma and benign ovarian tumor .Results The mean ADC value of solid component in ovarian carcinoma was (1 .68 ± 0 .37)× 10-3 mm2/s ,which was significantly lower than that of solid component in benign tumor (3 .51 ± 0 .53) × 10-3 mm2/s] .There was no significant statistical difference between ovarian car‐cinoma and benign tumor in ADC value of cystic component (5 .34 ± 0 .54)× 10-3 mm2/s vs (5 .89 ± 0 .37)× 10-3 mm2/s] .Conclu‐sion DWI is useful for diagnosis and differential diagnosis of ovarian carcinoma quantitatively .