DWI在均质甲状腺微小结节性质判断中的应用

发布时间：2018-05-05 15:55

  本文选题：甲状腺微小结节 + 均质性　； 参考：《山东医药》2017年41期

【摘要】：目的探究磁共振弥散加权成像(DWI)在均质甲状腺微小结节性质判断中的价值。方法选取经手术病理证实的162例均质甲状腺微小结节患者,共226个病灶进行磁共振常规扫描和DWI检查。在226个均质甲状腺微小结节病灶的术后病理诊断中,良性结节47个,恶性结节179个。将所得全部病灶的影像学数据进行统计学分析。结果术后病理结果证实的47个良性结节中DWI呈高信号者13个,等信号者32个,低信号者2个;179个恶性结节中DWI呈高信号者135个,等信号者36个,低信号者8个。取b值为0 s/mm~2时,DWI扫描所得出的良性和恶性结节ADC值分别为(2.481±0.328)、(1.920±0.216)×10~(-3)mm~2/s;取b值为300 s/mm~2时,ADC值分别为(2.322±0.528)、(1.634±0.387)×10~(-3)mm~2/s;取b值为500 s/mm~2时,ADC值分别为(1.972±0.479)、(1.496±0.272)×10~(-3)mm~2/s;取b值为800 s/mm~2时,ADC值分别为(1.675±0.503)、(1.247±0.248)×10~(-3)mm~2/s;取b值为1 000 s/mm~2时,ADC值分别为(1.528±0.310)、(1.229±0.106)×10~(-3)mm~2/s;取b值为300、500和800 s/mm~2时,良性和恶性结节DWI扫描所得出的ADC值差异有统计学意义(P均0.05);而在b值为0s/mm~2和1 000 s/mm~2时,良性和恶性结节DWI扫描所得出的ADC值差异无统计学意义(P均0.05)。结论取b值为300、500和800 s/mm~2时,应用DWI扫描所得出的ADC值可用于判断均质甲状腺微小结节的病变性质。
[Abstract]:Objective to investigate the value of diffusion-weighted magnetic resonance imaging (DWI) in the diagnosis of small homogeneous thyroid nodules. Methods A total of 226 lesions were examined by conventional MRI and DWI in 162 patients with homogeneous thyroid micronodules confirmed by operation and pathology. Of 226 homogeneous thyroid micronodule lesions, 47 were benign and 179 were malignant. The imaging data of all lesions were analyzed statistically. Results among the 47 benign nodules confirmed by postoperative pathology, 13 had high signal DWI, 32 had equal signal intensity and 2 had low signal intensity, 135 had high signal DWI, 36 had equal signal intensity and 8 had low signal intensity in 179 malignant nodules. 鍙朾鍊间负0 s/mm~2鏃，

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