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| The emptying time of contrast medium during parotid sialography in patients with Sjogren’s syndrome |
| ZHENG Guo, ZHANG Xue, LIU Rong-xin, WANG Li-li, ZHONG Qi-cheng, ZHANG Li-hui |
| The Affiliated Yiling Hospital of Hebei Medical University, Shijiazhuang 050091, China |
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Abstract Objective: To study emptying time of contrast medium during parotid sialography with Sjogren’s syndrome(SS). Methods: The patients were divided into normal group without symptom of oral cavity dryness, normal group with symptom of oral cavity dryness and SS group. The images of parotid sialography at 15min and 60min were analyzed, and some of the patients were randomly selected for long term follow up observation. Results: In the normal group without symptom of oral cavity dryness, most of the contrast medium was excreted(9/12 sides), completely excreted(3/12 sides) at 60min images. In the normal group with symptom of oral cavity dryness, contrast medium was not excreted in most cases at 60min images. In the SS group most cases showed no obvious excretion(44/58 sides). In cases with no oral cavity dryness the emptying of contrast medium was well. In the follow up observation from 1.5 hours to 6 months only 2 sides of SS patient showed bilateral complete excretion. Conclusion: When there is no obvious excretion of contrast medium on the 60min film it is considered to be abnormal as seen in most of the SS patients. Excretion time is correlated with the symptom of oral cavity dryness. The emptying of contrast medium on parotid sialography has high sensitivity in the diagnosis of SS, but its specificity is relatively poor.
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Received: 17 January 2006
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2006, Vol. 17 
