磁共振成像T_(2)加权成像联合高b值弥散加权成像在甲状腺微小结节定性诊断中的应用价值

Application Value of Magnetic Resonance Imaging T_(2) Weighted Imaging Combined with High b Value Diffusion Weighted Imaging in the Qualitative Diagnosis of Thyroid Micro Nodules

目的分析磁共振成像(MRI)T_(2)加权成像(T_(2)WI)联合高b值弥散加权成像(DWI)在甲状腺微小结节定性诊断中的应用价值。方法选取2019年4月至2021年4月新密市中医院西院区收治的105例甲状腺微小结节病变患者作为研究对象。所有患者接受MRI T_(2)WI检查和高b值DWI检查。将临床病理学检查结果作为金标准,统计手术病理学检查结果、MRI T_(2)WI、高b值DWI单独及联合检查结果。比较良、恶性甲状腺微小结节MRI T_(2)WI检查信号强度比及表观弥散系数(ADC),计算MRI T_(2)WI、高b值DWI单独及联合检查的诊断效能。结果良性甲状腺微小结节信号强度比、ADC均高于恶性甲状腺微小结节(P<0.05)。MRI T_(2)WI、高b值DWI联合检查诊断的准确度、灵敏度均高于单独检查,漏诊率低于单独检查(P<0.05)。结论MRI T_(2)WI、高b值DWI联合检查应用于甲状腺微小结节定性的诊断,可提高甲状腺微小结节良恶性的诊断效能,降低漏诊风险,可为临床检查提供参考。

Objective To analyze the application of magnetic resonance imaging(MRI)T_(2) weighted imaging(T_(2)WI)combined with high b value diffusion weighted imaging(DWI)in the qualitative diagnosis of thyroid micro nodules.Methods A total of 105 patients with thyroid micro nodule lesions in West Campus of Xinmi Hospital of Traditional Chinese Medicine from April 2019 to April 2021 were selected as research objects.All patients were examined by MRI T_(2)WI and high b value DWI.Take the results of clinical pathology as the gold standard,and the surgical pathological examination results,MRI T_(2)WI,high b value DWI single and combined examination results were recorded.The T_(2)WI signal intensity ratio and apparent diffusion coefficient(ADC)were compared between benign thyroid nodules and malignant thyroid nodules.The diagnostic efficiency was calculated among MRI T_(2)WI,high b value DWI alone and combined examination.Results The signal intensity ratio and ADC of benign thyroid nodules were higher than those of malignant thyroid nodules(P<0.05).The accuracy and sensitivity of diagnosis in MRI T_(2)WI and high b value DWI combined examination were higher than those in MRI T_(2)WI and high b value DWI single examination,and the missed diagnosis rate was lower than that in MRI T_(2)WI and high b value DWI single examination(P<0.05).Conclusion The combined examination of MRI T_(2)WI and high b value DWI in the qualitative diagnosis of thyroid micro nodules is of high value.It can improve the accuracy and sensitivity of diagnosis,reduce the risk of missed diagnosis,and provide reference for clinical examinations.