Ultrasonographic evaluation of the external ear canal and tympanic membrane in dogs

Autor: Kidong Eom, Taeho Oh, Junghee Yoon, Hojung Choi, Jong-Won Lee, Kwangho Jang, Hae-oon Lee, Heechun Lee, Sang-Gwan Lee, Keun-Woo Lee, Jin-hee Park, Dongwoo Chang, Younwon Lee, Jeong-min Lee, Yun-Sang Seong
Rok vydání: 2006
Předmět:
Zdroj: Veterinary radiologyultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association. 47(1)
ISSN: 1058-8183
Popis: Ultrasonographic imaging of the canine external ear canal, tympanic membrane, and tympanic bulla was described in five healthy beagle dogs before and after infusion of saline into the ear canal. Saline served as an acoustic window. With this method, the external ear canal, and tympanic bulla were visible in the same imaging plane and the integrity of the tympanic membrane could be evaluated indirectly by confirming an intact tympanic membrane, which appeared at the end of the ear canal as a hyperechoic line with reverberation. Experimentally, perforated tympanic membrane could be evaluated by identifying anechoic saline in the tympanic bulla lumen. The air and fluid-filled tympanic bulla were also visualized. Ultrasonography with saline as an acoustic window appears to be helpful for the evaluation of the external ear canal, tympanic membrane, and tympanic bulla and it may have the potential to be a useful clinical tool in evaluation of integrity of the tympanic membrane.
Databáze: OpenAIRE