目的 采用回顾性研究的方法，分析B型超声引导下的细针穿刺活检能否提高对甲状腺结节诊断的准确性。方法 54例患者行B型超声引导下的细针穿刺活检，另76例患者采用触诊法行细针穿刺活检，并将54例B超引导下的细针穿刺活检结果与手术结果进行比较。结果 超声引导下细针穿刺活检对可触及的甲状腺结节诊断的敏感性为63%，特异性为71%，准确性为65%，阳性预告值为100%，阴性预告值为70%。标本取材不当率为18%； 触诊法细针穿刺活检的灵敏性为47%，特异性为51%，准确性为43%，阳性预告值是54%，取材不当率为28%。B超引导下的细针穿刺活检准确性显著高于触诊法细针穿刺活检。结论 B超引导下的细针穿刺活检能提高手术前甲状腺癌的诊断。
ObjectiveTo evaluate the diagnostic value of BRAFV600E mutation test in high-risk thyroid nodules with easily underdiagnosed fine-needle aspiration biopsy (FNAB) results.MethodsRetrospectively collected 122 cases of thyroid nodule who treated in the Hebei Petrochina Central Hospital between January 2017 and December 2018, all the cases admitted preoperative ultrasound and FNAB detection. All of the patients had the non-positive cytological results of FNAB and the high-risk features of ultrasound. Contrasted the postoperative pathological coincidence rate of combination of FNAB and BRAFV600E test with FNAB alone.ResultsThe BRAFV600E mutation rate was 27.0% (33/122). The positive rate of BRAFV600E mutation increased with the increase of ultrasound thyroid imaging reporting and data system(TI-RADS) grade (P<0.05), which was independent of patients’ age, gender, number of nodules, diameter of nodules, and FNAB results (P>0.05). The coincidence rate of FNAB combined with BRAFV600E mutation detection was higher than that of FNAB alone ［86.9% (106/122) vs. 69.7% (85/122), P<0.05).ConclusionsThe BRAFV600E mutation test can detect papillary thyroid carcinoma that might be missed by FNAB. We recommend that FNAB should be routinely accompanied by the BRAFV600E mutation test in the high-risk thyroid nodules.