Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, India-110029.
Dentomaxillofac Radiol. 2011 Mar;40(3):147-53. doi: 10.1259/dmfr/32834129.
The objective of this study was to compare the conventional sialography with MR sialography in a series of patients with iatrogenic sialocele (sialocyst).
50 salivary glands in 39 patients with suspected inflammatory disease of the salivary gland underwent conventional sialography and MR sialography. Out of these 39 patients, 6 patients (age range: 16-35 years; 4 males and 2 females; mean age: 23.8 years) had sialoceles and formed our study group. MR sialography findings were compared with conventional sialography findings regarding demonstration of ductal anatomy, the cyst and its communication with the ductal system.
MR sialography demonstrated the site of communication of the sialocyst with the ductal system in all six patients. MR provided additional information over conventional sialography in five cases. In four cases, the ductal system proximal to the cyst was not opacified on digital sialography but was well visualized in all cases by MR sialography. Constructive interference in steady-state (CISS) sequence demonstrated the intraglandular ducts and communication of cysts with ducts better than half-fourier acquisition single-shot turbo-spin echo (HASTE) images.
Our preliminary results suggest that MR sialography is a robust, non-invasive method for demonstrating the ductal system up to second-order branches, the site of ductal injury and the focal cystic lesion. MR provided at least the same information as conventional sialography in the evaluation of site of communication but provided additional information about the sialocyst and upstream ductal system in five cases. Being a non-invasive modality, we recommend MR sialography as the investigation of choice in the evaluation of an iatrogenic sialocyst.
本研究旨在比较常规涎腺造影与磁共振涎腺造影在一系列医源性涎瘘（涎囊）患者中的应用。
对 39 例疑似涎腺炎症性疾病的患者的 50 个涎腺进行了常规涎腺造影和磁共振涎腺造影。在这 39 例患者中，有 6 例（年龄范围：16-35 岁；4 例男性，2 例女性；平均年龄：23.8 岁）患有涎瘘并形成了我们的研究组。比较磁共振涎腺造影与常规涎腺造影在显示导管解剖、囊肿及其与导管系统的连通方面的结果。
磁共振涎腺造影在所有 6 例患者中均显示了涎瘘与导管系统的连通部位。磁共振涎腺造影在 5 例中提供了比常规涎腺造影更多的信息。在 4 例中，囊肿近端的导管系统在数字涎腺造影中不显影，但在所有病例中均能通过磁共振涎腺造影很好地显示。稳态构建干扰（CISS）序列比半傅里叶采集单次激发涡轮自旋回波（HASTE）图像更好地显示了腺内导管和囊肿与导管的连通。
我们的初步结果表明，磁共振涎腺造影是一种强大的、非侵入性的方法，可显示至二级分支的导管系统、导管损伤部位和局灶性囊性病变。磁共振涎腺造影在评估连通部位时提供的信息至少与常规涎腺造影相同，但在 5 例中提供了关于涎瘘和上游导管系统的额外信息。作为一种非侵入性的方法，我们推荐磁共振涎腺造影作为医源性涎瘘评估的首选检查方法。
