Image-based monitoring of one-lung ventilation

Abstract

During single-lung ventilation, vibration response imaging clearly showed increased vibration in the lung that is being ventilated. Distribution of residual vibration differed in the non-ventilated lung in a manner that suggests transmission of vibrations across the mediastinum from the ventilated lung. The lung image and video obtained from vibration response imaging may provide useful and immediate information to help one-lung ventilation assessment.

Vibration response imaging (VRI) in lung transplant recipients

“…Additionally, concerns have been raised about the ability of physicians to routinely differentiate between varying lung pathologies through VRI technology in a group of unselected patients [Blanco et al 2009]. In keeping with previous results published by Jean [Jean et al 2008] relating to SLTx recipients, a reduced image in the remaining non-transplanted lung was again observed in the current study.…”

Evaluation of the utility of vibration response imaging device and Operation Planning Software in the assessment of patients before lung resection surgery☆

“…In this sense, multiple studies are available on the evaluation and reproducibility of recordings in healthy individuals [17,18], on the value of VRI XP in subjects with various lung conditions [10], for example, in patients with pleural effusion or pneumonia [19]; patients under mechanical ventilation [10]; lung-transplant patients [20]; paediatric patients [21] and in other clinical situations in the intensive care unit (ICU) and in emergency medicine [22][23][24]. As Maher [17] has demonstrated in healthy subjects, the acoustic lung imaging is reproducible and can be interpreted with a high degree of accuracy by the same and different reviewers.…”

Computational fluid dynamic modelling of the effect of ventilation mode and tracheal tube position on air flow in the large airways

“…Functional magnetic resonance imaging can generate detailed images of regional ventilation , but cost and ethical constraints prevent this being easy to perform in an anaesthetised patient. A technique for automatically recording breath sounds from an array of 36 acoustic sensors under the patient, vibration response imaging , has been used during anaesthesia, but resolution is low, the technique being just able to differentiate between one‐ and two‐lung ventilation. More recently, a method of measuring regional ventilation using electrical impedance tomography has been developed that has better spatial resolution, and produces images with lung regions of 2–5 cm in size .…”

“…More recently, a method of measuring regional ventilation using electrical impedance tomography has been developed that has better spatial resolution, and produces images with lung regions of 2–5 cm in size . Both techniques have been used in the clinical setting to detect endobronchial intubation , and electrical impedance tomography is now being used to guide ventilation in lung‐injured patients . The low spatial and temporal resolutions of these methods make them inadequate for detailed study of the influence of tracheal tube position on air flow.…”