颈部超声最常显示正常的甲状旁腺。

IF 3.8 2区医学 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Academic Radiology Pub Date : 2024-09-01 DOI:10.1016/j.acra.2024.03.026

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引用次数: 0

摘要

理由和目标：有一种教条认为，正常的甲状旁腺（PTG）在超声波（US）上是不可见的。最近有几项研究表明，正常的甲状旁腺（PTG）在超声波检查中具有以下特征：卵圆形结构、均质和高回声。该研究的主要目的是评估甲状腺 US 检查就诊者中正常 PTG 的检出率、标准大小和位置。次要目标是确定甲状腺肿或甲状腺炎的存在是否会影响正常 PTG 的显示：方法：对192名患者进行单中心前瞻性研究，根据之前描述的典型US外观确定一个或多个PTG：结果：75%的患者（144/192）能看到一个或多个PTG。在甲状腺下极和甲状腺下区可观察到PTG（66%）。正常 PTG 的平均（± SD）尺寸为 5.68 毫米（± 1.42 毫米）×4.05 毫米（± 1.03 毫米）×2.68 毫米（± 0.61 毫米），平均体积为 33.3 立方毫米（± 17.75 立方毫米）。甲状腺肿的存在增加了寻找PTG的难度，而甲状腺炎的存在则有利于寻找PTG：结论：美国的 PTG 检出率很高（75%）。结论：US检查对PTG的检出率很高（75%），在甲状腺全切除术或甲状旁腺手术前的术前评估中，对PTG的识别尤其有用。它可以降低术后甲状旁腺功能减退的风险，并提高甲状腺癌术后US监测的准确性。更好地了解正常PTG的通常解剖位置也能更好地发现异常腺体。

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Normal Parathyroid Glands Are Most Often Seen on Neck Ultrasound

Rationale and Objectives

The dogma is that normal parathyroid glands (PTGs) are not visible on ultrasound (US). Recently, several studies have shown that PTGs present these US features: ovoid structure, homogeneous and hyperechoic. The primary objective was to assess the detection rate, standard size and locations of normal PTGs in a population of patients consulting for thyroid US exam. The secondary objective was to determine if the presence of a goiter or a thyroiditis could modify the visualization of normal PTGs.

Method

Single-center prospective study on 192 patients based on the typical US appearance previously described to identify one or more PTGs.

Results

One or more PTGs were visualized in 75% of patients (144/192). They were visualized preferentially at the lower pole of the thyroid gland and in the infra-thyroid region (66%). The mean (± SD) size of normal PTGs was 5.68 mm (± 1,42 mm) × 4.05 mm (± 1,03 mm) × 2,68 mm (± 0,61 mm) and mean volume was 33.3 mm3 (± 17.75 mm3). The presence of a goiter made the search for PTGs more difficult whereas the presence of thyroiditis facilitated it.

Conclusion

The US detection rate of PTGs is high (75%). The identification of PTGs could be particularly useful in the preoperative assessment before total thyroidectomy or parathyroid surgery. It could reduce the risk of postoperative hypoparathyroidism and improve the accuracy of postoperative US surveillance of thyroid cancer. Better knowledge of the usual anatomical location of normal PTGs could also enable better detection of abnormal glands.

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来源期刊

Academic Radiology 医学-核医学

CiteScore

7.60

自引率

10.40%

发文量

432

审稿时长

18 days

期刊介绍： Academic Radiology publishes original reports of clinical and laboratory investigations in diagnostic imaging, the diagnostic use of radioactive isotopes, computed tomography, positron emission tomography, magnetic resonance imaging, ultrasound, digital subtraction angiography, image-guided interventions and related techniques. It also includes brief technical reports describing original observations, techniques, and instrumental developments; state-of-the-art reports on clinical issues, new technology and other topics of current medical importance; meta-analyses; scientific studies and opinions on radiologic education; and letters to the Editor.