斉藤 泰博¹, 山田 有則¹, 片田 竜司¹, 峯田 昌之¹, 油野 民雄¹, 西村 泰一², 湯川 浩文³

Yasuhiro SAITOH¹, Tomonori YAMADA¹, Ryuji KATADA¹, Masayuki MINETA¹, Tamio ABURANO¹, Taiichi NISHIMURA², Hirofumi YUKAWA³

¹旭川医科大学放射線科, ²旭川医科大学口腔外科, ³アロカ株式会社

¹Department of Radiology, Asahikawa Medical University and Hospital, ²Department of Oral surgery, Asahikawa Medical University and Hospital, ³Aloka Company

キーワード : Color Doppler , Micro-convex transducer, Oral cancer , Tongue , Ultrasonography

Nine patients with oral cancer underwent ultrasound (US) examination that employed a 7.5 MHz micro-convex transducer designed for intraoperative scanning of the liver, and tumors were clearly demonstrated in all of cases. Information on site and extent of tumors provided by ultrasonography was more accurate than that obtained by clinical assessment using mirrors and palpation. Further, FFT analysis of the abundant color Doppler signals obtained from the tumors showed pulsatile-wave blood flow. The images also showed the relation between the tumor and the branches of the lingual artery. This method was useful in the evaluation of oral cancers.