assessment of regional lung ventilation by electrical impedance tomography in a patient with unilateral bronchial stenosis and a history of tuberculosis
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2013
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Abstract
Bronchial stenosis can impair regional lung ventilation by causing abnormal, asymmetric airflow limitation. Electrical impedance tomography (EIT) is an imaging technique that allows the assessment of regional lung ventilation and therefore complements the functional assessment of the lungs. We report the case of a patient with left unilateral bronchial stenosis and a history of tuberculosis, in whom regional lung ventilation was assessed by EIT. The EIT results were compared with those obtained by ventilation/perfusion radionuclide imaging. The patient was using nasal continuous positive airway pressure (CPAP) for the treatment of obstructive sleep apnea syndrome. Therefore, we studied the effects of postural changes and of the use of nasal CPAP. The EIT revealed heterogeneous distribution of regional lung ventilation, the ventilation being higher in the right lung, and this distribution was influenced by postural changes and CPAP use. The EIT assessment of regional lung ventilation produced results similar to those obtained with the radionuclide imaging technique and had the advantage of providing a dynamic evaluation without radiation exposure.
| Reference Key |
marinho2013jornalassessment
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| Authors | ;Liégina Silveira Marinho;Nathalia Parente de Sousa;Carlos Augusto Barbosa da Silveira Barros;Marcelo Silveira Matias;Luana Torres Monteiro;Marcelo do Amaral Beraldo;Eduardo Leite Vieira Costa;Marcelo Britto Passos Amato;Marcelo Alcantara Holanda |
| Journal | cryobiology |
| Year | 2013 |
| DOI |
10.1590/S1806-37132013000600013
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| URL | |
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