Role of ultrasound and color Doppler imaging in the detection of carotid paragangliomas.
Role of ultrasound and color Doppler imaging in the detection of carotid paragangliomas.
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DOI：
10.1016/j.jus.2012.05.001
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发表时间：
2012-09-01
影响因子：
2
通讯作者：
Opocher, G
中科院分区：
文献类型：
--
作者：
Dematte, S;Di Sarra, D;Opocher, G
简介：颈动脉体副神经节瘤（PGL）是一种高度血管化的病变，起源于颈动脉分叉处的副神经节。目的：评价灰阶超声（US）和彩色多普勒超声（CDUS）在颈动脉PGL检测和随访中的作用。作者回顾性分析了40例经CT或MRI证实的PGL综合征1型患者的颈部超声和CDUS检查结果;患者的颈部共有60个PGL。将US和CDUS结果与二线成像技术（如磁共振成像（MRI）或计算机断层扫描（CT））的结果进行比较。考虑了以下结果：超声成像时存在/不存在局灶性病变以及超声和MRI/CT测量的病变最大直径差异。结果：在60例颈部PGLs中，只有5例（8.3%）在US或CDUS检查中不可见。CT/MRI和US/CDUS测量的这些病变的最大直径差异范围为-5 mm至+16 mm（平均差异为2.2±6.0）。结论：超声和彩色多普勒超声是鉴别颈动脉PGLs的有用方法，也可测量直径小于10 mm。然而，在测量病变的确切尺寸时，US和CDUS的诊断准确性降低。
INTRODUCTION: Carotid body paragangliomas (PGLs) are highly vascularized lesions that arise from the paraganglia located at the carotid bifurcation.PURPOSE: To evaluate the usefulness of gray-scale ultrasound (US) and color Doppler ultrasound (CDUS) in the detection and follow-up of carotid PGLs of the neck.MATERIALS AND METHODS: The authors retrospectively reviewed US and CDUS examinations of the neck performed in 40 patients with PGL syndrome type 1 and single or bilateral neck PGLs confirmed by CT or MRI; the patients had a total of 60 PGLs of the neck. US and CDUS outcome was compared to the outcome of second-line imaging techniques such as magnetic resonance imaging (MRI) or computed tomography (CT). The following findings were considered: presence/absence of focal lesions at US imaging and difference in maximum diameter of the lesion measured at US and MRI/CT. Results were compared using the Student's t-test.RESULTS: Of the 60 PGLs of the neck only 5 (8.3%) were not visualized at US or CDUS examination. The difference in maximum diameter of these lesions measured at CT/MRI and US/CDUS ranged between -5mm and +16mm (mean difference 2.2±6.0). This difference was statistically significant (p=0.008).CONCLUSIONS: US and CDUS are useful methods for identifying carotid PGLs also measuring less than 10mm in diameter. However, diagnostic accuracy of US and CDUS is reduced in the measurement of the exact dimensions of the lesions.