Evaluation of clearance function of the Eustachian tube by sequential contrast CT.

Evaluation of clearance function of the Eustachian tube by sequential contrast CT. Research Abstract Details 

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Evaluation of clearance function of the Eustachian tube by sequential contrast CT. Abstract Text:

H Niwa,M Takahashi,N Yanagita,S Naganawa,

Comparisons of Eustachian tube (ET) functions studied by sequential contrast computerized tomography (CT) and by tubotympanic aerodynamics (TTAG) were made. ET clearance function was assessed by the shape of the cartilaginous portion before, during and at the end of swallowing; ventilatory function was studied by TTAG. ET clarity, real-time dynamics and resolution were all better when observed with sequential CT. Contrast medium was instilled into the middle ear via a drumhead perforation and 1 scan/sec taken during swallowing. We classified ET function based on the presence or absence of a) movement of the cartilaginous portion, and b) contrast medium in the ET as i) movement present, contrast medium seen in ET: ii) movement absent, contrast medium present in ET; and iii) movement present, no contrast medium in the ET. Ventilatory and clearance functions did not parallel one another, attributable to some mechanical, differences between the two functions.

Evaluation of clearance function of the Eustachian tube by sequential contrast CT. Publishing Authors By Initials

H Niwa,M Takahashi,N Yanagita,S Naganawa,

For similar ear, external: tympanic membrane research abstracts see: ear, external: tympanic membrane research

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Evaluation of clearance function of the Eustachian tube by sequential contrast CT. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Acta oto-laryngologica. Supplementum

VOLUME: 471

Page Numbers: 43-50

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ISSN: 0365-5237

DAY: 13

MONTH: 02

YEAR: 1990

Evaluation of clearance function of the Eustachian tube by sequential contrast CT. Information

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LANGUAGE: eng

NlmUniqueID: 370355

Evaluation of clearance function of the Eustachian tube by sequential contrast CT. Keywords Mesh Terms:

KEYWORDS: Tympanic Membrane

MESH TERMS: injuries

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Grant and Affiliation Information for Evaluation of clearance function of the Eustachian tube by sequential contrast CT.

AFFILIATION: Department of Otorhinolaryngology, Nagoya University School of Medicine, Japan.

Country: SWEDEN

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MEDLINETA: Acta Otolaryngol Suppl

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