Diagnostic Accuracy of Ultrasonography for Salivary Gland Tumors.

概要

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Fifty-five patients with parotid gland tumors and fourteen with submandibular gland tumors were evaluated by high-resolution real time linear scanners using transducer frequencies of 7.5 MHz. The results were compared with clinical, surgical and pathological data.<BR>A comparative study of ultrasonography was carried out to assess respective roles in the investigation of salivary gland tumors and to determine if equivalent or complementary information can be obtained.<BR>In the cases of salivary gland tumors, the detectability of ultrasonography was 100%. The three signs, that were acoustic shadows, echogenic spots and coarseness in the ultrasonographic images of tumors, were used to decide whether a lesion was benign or malignant were selected. As a result the sensitivity and the specificity of ultrasonography was found to be 88% and 98% respectively.<BR>It should be noted that ultrasonography was useful for the evaluation of salivary gland tumors and that a benign tumor could be distinguished from a malignant tumor by ultrasound.
特定非営利活動法人日本口腔科学会の論文