Application of Photoacoustic Imaging for Pneumonia Detection
Penulis/Author
Caesarany Maqfiroh (1); Dr. drg. Rini Widyaningrum, M.Biotech (2); AHMAD MUJTAHID ANAS (3); Prof. Dr. Mitrayana, S.Si., M.Si. (4)
Tanggal/Date
2023
Kata Kunci/Keyword
Abstrak/Abstract
We used photoacoustic imaging (PAI) to visualize and compare acoustic intensity levels in pneumonia-affected and healthy chicken lungs. After histological confirmation of pneumonia, the samples were scanned and subjected to a 532- nm diode laser in a photoacoustic imaging system. The acoustic intensity level of pneumonia-affected tissue was examined and compared with that of healthy lung samples. The optimum laser frequency and duty cycle for imaging the samples were 17 kHz and 30%, respectively. The acoustic intensity levels of pneumonia-affected tissue and healthy lungs were −82.5 ± 1.8 dB and −79.9 ± 1.3 dB, respectively. We found that a simple PAI device consisting of a diode laser and condenser microphone could distinguish between pneumonia-affected and healthy lungs. Pneumonia-affected lungs produced less acoustic intensity than that healthy lungs, as supported by histological studies
