Sonography for Pleomorphic Adenoma of the Salivary Gland Comparison of 10 MHz and 7.5 MHz Probes.:-Comparison of 10 MHz and 7.5 MHz Probes-

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Pleomorphic adenomas of the salivary gland were studied with 10 MHz high-resolution sonography. Direct probe scanning at 10 MHz was compared with 7.5 MHz probe sonography with direct probe scanning, and with probe scanning with a water bag and with a gel conductor. 1) The margins, internal echogenicities of the adenoma and vascular images surrounding the tumor were more clearly delineated with 10 MHz direct probe scanning than with 7.5 MHz sonography with direct probe scanning or probe scanning with a gel conductor. 2) The margins and internal echogenicities of the adenoma were as clearly demonstrated by 10 MHz probe scanning as by 7.5 MHz probe scanning with a water bag.Calcifications (small areas of high echogenicity) in the adenoma and vascular images surrounding the tumors were clearer with 10 MHz direct probe scanning than with 7.5 MHz probe scanning with a water bag.Ultrasonography with a 10 MHz probe proved to be useful in the assessment of pleomorphic adenoma of the salivary gland.
耳鼻咽喉科臨床学会の論文