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- Title
Validation of Noninvasive Remote Dielectric Sensing System to Quantify Lung Fluid Levels.
- Authors
Imamura, Teruhiko; Gonoi, Wataru; Hori, Masakazu; Ueno, Yohei; Narang, Nikhil; Onoda, Hiroshi; Tanaka, Shuhei; Nakamura, Makiko; Kataoka, Naoya; Ushijima, Ryuichi; Sobajima, Mitsuo; Fukuda, Nobuyuki; Ueno, Hiroshi; Kinugawa, Koichiro
- Abstract
Background: The accuracy of the remote dielectric sensing (ReDSTM) system, which is a noninvasive electromagnetic-based technology to quantify lung fluid levels, particularly among those with small body size, remains uncertain. Methods: Hospitalized patients with and without heart failure underwent assessment of lung fluid levels with ReDS and successive chest computed tomography imaging. We performed a correlation analysis of the ReDS measurement, representing lung fluid levels, and computed tomography-derived high attenuation area percentage, which also provides a spatial quantification of lung fluid level. Results: A total of 46 patients (median 76 years old, 28 men), including 28 patients with heart failure, were included. The median ReDS value was 28% (interquartile: 23%, 33%), and the median percentage of high attenuation area was 21.6% (14.4%, 28.5%). ReDS values and percentage of high attenuation area were moderately correlated (r = 0.65, p < 0.001), irrespective of the existence of heart failure. ReDS value independently predicted the percentage of high attenuation area seen on computed tomography (p < 0.001). Conclusions: The ReDS system may be a promising, noninvasive tool to quantify fluid lung levels, as validated by comparison with chest computed tomography imaging. Further studies are warranted to validate the utility and applicability of this technology to a variety of clinical scenarios.
- Subjects
REMOTE sensing; HEART failure patients; COMPUTED tomography; LUNGS; FLUIDS
- Publication
Journal of Clinical Medicine, 2022, Vol 11, Issue 1, p164
- ISSN
2077-0383
- Publication type
Article
- DOI
10.3390/jcm11010164