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首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Use of a curved-array transducer to reduce interobserver variation in sonographic measurement of thyroid volume in healthy adults.
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Use of a curved-array transducer to reduce interobserver variation in sonographic measurement of thyroid volume in healthy adults.

机译：使用弯曲阵列换能器减少健康成年人甲状腺体积的超声检查中观察者间的差异。

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摘要

PURPOSE: Sonographic calculation of thyroid volume is used in the diagnosis and follow-up of thyroid diseases. Since the calculated volume of thyroid lobes is highly influenced by the longest (ie, craniocaudal) diameter, we examined whether using a curved-array transducer as opposed to a linear-array transducer to measure the craniocaudal diameter would reduce interobserver variation. METHODS: Three sonographers with different levels of expertise each used a 5-12-MHz linear-array transducer and a 2-5-MHz curved-array transducer to measure the craniocaudal diameter of both thyroid lobes of 25 healthy volunteers. On the basis of these measurements, thyroid lobe volumes were calculated. Single-factor analysis of variance was used to evaluate the interobserver variations between the measurements made by all 3 observers as well as between measurements taken by pairs of observers. A p value of less than 0.05 was considered significant. RESULTS: Using the linear-array transducer to measure the craniocaudal diameter resulted in significant interobserver variation in thyroid volume calculation (p = 0.02), whereas using the convex-array transducer did not. Using either transducer resulted in a highly significant interobserver variation in measurements of the craniocaudal diameter, although the variation was far more pronounced for measurements made with the linear-array transducer (p = 0.0005) than for those made with the curved-array transducer (p = 0.04). For both transducers, the interobserver variations were most pronounced between the most and the least experienced sonographers. CONCLUSIONS: To avoid significant interobserver variation in calculating thyroid lobe volume, we recommend using a curved-array transducer to measure the craniocaudal diameter of the thyroid lobes.
机译：目的：甲状腺功能的超声检查可用于甲状腺疾病的诊断和随访。由于甲状腺叶的计算体积受最长（即颅尾）直径的影响很大，因此我们检查了使用弯曲阵列换能器而非线性阵列换能器测量颅尾直径是否会减少观察者之间的差异。方法：三位具有不同专业知识的超声检查人员分别使用5-12 MHz线性阵列换能器和2-5-MHz弯曲阵列换能器来测量25名健康志愿者的两个甲状腺叶的颅尾直径。基于这些测量，计算了甲状腺叶体积。使用单因素方差分析来评估所有3个观察者之间的测量之间以及观察者对之间的测量之间的观察者间变化。 P值小于0.05被认为是显着的。结果：使用线性阵列换能器测量颅尾直径导致观察者间甲状腺体积计算的显着差异（p = 0.02），而使用凸阵列换能器则没有。尽管使用线性阵列换能器（p = 0.0005）进行测量的结果比使用弯曲阵列换能器（p = 0.04）。对于这两个换能器，经验丰富的超声医师与经验最少的超声医师之间的观察者差异最为明显。结论：为避免观察者之间在计算甲状腺叶体积时出现明显的差异，我们建议使用弯曲阵列换能器测量甲状腺叶的颅尾直径。

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