Detection of abnormalities in dyspneic patients using a new lung imaging modality / 中华医学杂志(英文版)
Chinese Medical Journal
;
(24): 2247-2251, 2014.
Article
Dans Anglais
| WPRIM
| ID: wpr-241688
ABSTRACT
<p><b>BACKGROUND</b>Although chest radiography is a useful examination tool, it has limitations. Because not all chest conditions can be detected on a radiograph, radiography cannot necessarily rule out all irregularities in the chest. Therefore, further imaging studies may be required to clarify the results of a chest radiograph, or to identify abnormalities that are not readily visible. The aim of this study was to compare traditional chest radiography with acoustic-based imaging (vibration response imaging) for the detection of lung abnormalities in patients with acute dyspnea.</p><p><b>METHODS</b>The current investigation was a pilot study. Respiratory sounds throughout the respiratory cycle were captured using an acoustic-based imaging technique. Consecutive patients who presented to the emergency department with acute dyspnea and a normal chest radiograph on admission were enrolled and underwent imaging at the time of presentation. Dynamic and static images of vibration (breath sounds) and a dynamic image score were generated, and assessments were made using an evaluation form.</p><p><b>RESULTS</b>In healthy volunteer controls (n = 61), the mean dynamic image score was 6.3 ± 1.9. In dyspneic patients with normal chest radiographs (n = 51) and abnormal chest radiographs (n = 48), the dynamic image scores were 4.7 ± 2.7 and 5.1 ± 2.5, respectively (P < 0.05). The final assessment of the vibration images indicated abnormal findings in 15%, 86% and 90% of the participants in the above groups, respectively (P < 0.05).</p><p><b>CONCLUSIONS</b>In patients with acute dyspnea who present with normal chest radiographs, respiratory sound analyses often showed abnormal values. Hence, the ability of acoustic-based recordings to offer objective and noninvasive measurements of abnormal sound transmission may be useful in the clinical setting for patients presenting with acute dyspnea.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Bruits respiratoires
/
Dyspnée
/
Service hospitalier d'urgences
/
Poumon
Type d'étude:
Etude diagnostique
/
Étude pronostique
Limites du sujet:
Adulte
/
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Chinese Medical Journal
Année:
2014
Type:
Article
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS