Fluoroscopic subtraction Eustachian tubography: initial feasibility test in a cadaver model.
Eur Radiol
; 28(9): 3685-3691, 2018 Sep.
Article
em En
| MEDLINE
| ID: mdl-29619519
ABSTRACT
OBJECTIVES:
To evaluate the technical feasibility of direct Eustachian tube catheterisation and subtraction Eustachian tubography in a cadaver model.METHODS:
A total of 12 separate sessions were performed on both sides of the Eustachian tube (ET) in six human cadavers. Cadavers were positioned for the submentovertical view on a fluoroscopy table. Endoscopy-guided ET selection was used in the first three cadavers, whereas fluoroscopy-guided ET selection was used in the remaining three. Eustachian tubography was performed by injecting 2 ml of contrast media through a 5-Fr catheter. We recorded the success of ET selection, number of attempts, procedure time, and tubography quality using native and subtraction images (range, 0-3).RESULTS:
Both endoscopy- and fluoroscopy-guided selections were successfully performed in five of six sessions (83.3%). There were no statistically significant differences between the endoscopy- and fluoroscopy-guided procedures in terms of the number of attempts, procedure time, rate of immediate contrast leak to the middle ear cavity, and quality of tubography (p > 0.05). An excellent quality of tubography was obtained in 83.3% (10 of 12 sessions) of subtraction images and in 33.3% (4 of 12 sessions) of native images. The tubography quality score was significantly higher for the subtraction images than for the native images (p = 0.04).CONCLUSION:
Subtraction Eustachian tubography using direct catheterisation seems to be technically feasible. The entire ET can be well visualised; thus, this technique can be used as a simple tool for assessment of ET function and anatomy. KEY POINTS ⢠Direct catheterisation of the Eustachian tube is technically feasible. ⢠The entire Eustachian tube could be well visualised by direct Eustachian tubography. ⢠Subtraction Eustachian tubography images have better image quality than native images. ⢠Subtraction Eustachian tubography can provide objective assessment of ET function and anatomy.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cateterismo
/
Endoscopia
/
Tuba Auditiva
Tipo de estudo:
Prognostic_studies
Limite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
Eur Radiol
Assunto da revista:
RADIOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article