Vibration Analysis of Circular Membrane Model of Alveolar Wall in Examining Ultrasound-induced Lung Hemorrhage | Zendy

D. John Jabaraj | Zendy; Mohamad Suhaimi Jaafar | Zendy

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Vibration Analysis of Circular Membrane Model of Alveolar Wall in Examining Ultrasound-induced Lung Hemorrhage

Author(s) -

D. John Jabaraj,

Mohamad Suhaimi Jaafar

Publication year - 2013

Publication title -

journal of medical ultrasound

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.311

H-Index - 14

eISSN - 2212-1552

pISSN - 0929-6441

DOI - 10.1016/j.jmu.2013.04.004

Subject(s) - ultrasound , lung , medicine , alveolar wall , resonance (particle physics) , pulmonary alveolus , mechanism (biology) , lung ultrasound , radiology , respiratory disease , physics , particle physics , quantum mechanics

BackgroundUltrasound-induced lung hemorrhage was analyzed from the perspective of alveolar resonance mechanism.MethodsThe alveolar resonance mechanism was theoretically studied by modeling the alveolar wall facet as a circular membrane model vibrating in fundamental mode. Based on the vibration analysis of this model, the equations of fundamental frequency and threshold pressure for the occurrence of ultrasound-induced lung hemorrhage were derived.ResultsThe validity of the circular membrane model of the alveolar resonance mechanism was demonstrated. This theoretical study predicts that ultrasound-induced lung hemorrhage does not occur when the total lung capacity is ≤20% (for mammals), and when the ultrasound frequency is >1.55 MHz at a mechanical index of ≤1.9 (for humans only).ConclusionThe alveolar resonance mechanism is a plausible mechanism of ultrasound-induced lung hemorrhage

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