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目的 :探讨甲状腺上动脉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65例甲状腺功能亢进 (甲亢 )、 2 9例亚临床甲状腺功能低下 (亚甲低 )及 2 1例甲状腺功能低下 (甲低 )进行了彩色多普勒超声检查 ,测量并计算甲状腺上动脉峰速与心率乘积 (PV H) ,并与正常组进行对照。结果 :甲亢组的 PVH测值显著高于亚甲低组、甲低组及正常组 (P<0 .0 1 )。若以 PV H≥ 55作为诊断甲亢的标准 ,其敏感性、特异性及准确性分别为 93.8% ,96.0 %及 94.8% ,明显优于采用 Vmax≥ 0 .7m/s诊断甲亢的方法 (P<0 .0 1 )。结论 :应用PV H诊断甲亢 ,简单、实用 ,具有较高的准确性
Objective: To investigate the value of the product of the peak velocity and heart rate of the thyroid artery in the diagnosis of hyperthyroidism. Methods: 65 cases of hyperthyroidism (hyperthyroidism), 29 cases of subclinical hypothyroidism (hypothyroidism) and 21 cases of hypothyroidism (hypothyroidism) confirmed by clinical and nuclear medicine were examined by color Doppler Ultrasonography was performed to measure and calculate the product of peak velocity and heart rate (PV H) of the superior thyroid artery and to compare with the normal group. Results: The PVH in hyperthyroidism group was significantly higher than that in hypothyroidism group, hypothyroidism group and normal group (P <0.01). The sensitivity, specificity and accuracy of PV H≥55 were 93.8%, 96.0% and 94.8%, respectively, which were significantly better than those with Vmax≥0.77m / s for the diagnosis of hyperthyroidism (P < 0 .0 1). Conclusion: The diagnosis of hyperthyroidism with PV H is simple, practical and has high accuracy