应用彩超检测甲状腺内动脉分支的峰速与心率乘积诊断甲亢

Diagnosis of hyperthyroidism by product of the peak velocity of thyroid arterial branch and heart rate

目的探讨甲状腺内动脉分支的峰速与心率乘积诊断甲亢的价值。方法对经临床及核医学检查证实的46例甲状腺功能亢进(甲亢),19例亚临床功能低下(亚甲低)及21例甲状腺功能低下(甲低)进行了彩色多普勒超声检查,测量并计算甲状腺内动脉分支的峰速与心率乘积(PBVH),并与正常组进行对照。结果甲亢组的PBVH测值高于亚甲低组、甲低组及正常组。若以PBVH≥70作为诊断甲亢的标准,其敏感性、特异性及准确性分别为97.8%,97.6%及97.7%,优于采用Vm ax≥0.8m/s诊断甲亢的方法。结论应用PBVH诊断甲亢,简单,实用,具有较高的准确性。

Objective To explore the value of diagnosing hyperthyroidism by product of the peak velocity of thyroid arterial branch and heart rate. Methods Forty-six patients with hyperthyroidism （HET）, 19 with subclinical hypothyroidism （SHT） and 21 with hypothyroidism （HOT） diagnosed in clinic and confirmed by nuclear medicine examinations underwent color Doppler sonography and the product of the peak velocity of thyroid arterial branch and heart rate（PBVH） was measured and compared with the normal values. Results The PBVH of HET were significantly higher than that of SHT,HOT and normal （P〈0.01）. When PBVH≥70 was used as the diagnostic criterion for HET, the sensitivity,specificity and accuracy were 97.8% ,97.6% and 97.7% ,respectively. PBVH was superior to Vmax≥ 0.8m/s for diagnosing HET（P〈0.01）. Conclusion Detecting HET by PBVH is a simple and practical method with high diagnostic accuracy rate.