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All Journal Indonesian Journal of Electronics and Instrumentation Systems Jurnal Sains Dasar PROSIDING : Seminar Nasional Fisika dan Pendidikan Fisika Majalah Kedokteran Gigi Indonesia Biomedika Journal of Physics: Theories and Applications INDONESIAN JOURNAL OF APPLIED PHYSICS Prosiding SNPF (Seminar Nasional Pendidikan Fisika) WAKTU: Jurnal Teknik UNIPA Jurnal Fisika Indonesia Journal of Multidisciplinary Applied Natural Science Indonesian Journal of Teaching in Science JKKI : Jurnal Kedokteran dan Kesehatan Indonesia Edukasia: Jurnal Pendidikan dan Pembelajaran Makara Journal of Science Magister Scientiae
Mitrayana -
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Dentistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : Makara Journal of Science

 1 
Application of a Photoacoustic Tomography System: A Case Study on the Monitoring of Pig Tissue Decomposition Oey, Lusiana Sandra; Mitrayana, Mitrayana; Wasono, Moh. Ali Joko
Makara Journal of Science Vol. 26, No. 1
Publisher : UI Scholars Hub

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Abstract

Pig carcasses have been used in forensic research because they share several similarities to human cadaver, including decomposition. In several studies, the decomposition of pig’s cadaver for a certain time can be used as a model to determine the time of death of a human. This study was conducted to determine the relationship between the days of spoilage of pig tissue and the level of average sound intensity produced by the sample. Then, in this study, pig skeletal muscles were allowed to decay with a variation of 1–5 days. Afterward, these muscles were imaged using diode laser-based photoacoustic tomography. Results of the experiment show that the average acoustic intensity level from the first day until the fourth day has increased (78–92 a.u for young pig and 76–86 a.u for old pig) but decreased on the fifth day (88 a.u for young and 84 a.u for old pig). These results can improve forensic imaging because such results can be applied to determine the time of death of human by plotting the ratio of the average sound intensity level of the sample to the number of days of decomposition.
Application of Photoacoustic Imaging for Pneumonia Detection Maqfiroh, Caesarany; Widyaningrum, Rini; Anas, Ahmad Mujtahid; Mitrayana, Mitrayana
Makara Journal of Science Vol. 27, No. 2
Publisher : UI Scholars Hub

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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.
Co-Authors Agung Bambang Setio Utomo Agung Bambang Setio Utomo Anas, Ahmad Mujtahid Andreas Setiawan Apriyanto, Donni Kis Arif Faisal Bergitta Dwi Annawati Dara Cynthia Nur Cahyani Dewi - Agustina Donni Kis Apriyanto Elah Nurlaelah Fajar Wahid Alim Fitri Yanti Frans J. M. Harren Gong Matua Ilham Muhammad Julien Mandon Kusminarto - Luthfan Budi Purnomo M. A. J. Wasono M. R. Ikhsan Mahardika Yoga Darmawan Mahendra Kusuma Nugraha Maqfiroh, Caesarany Mirza Satriawan Mochamad Nurul Amin Moh Ali Joko Wasono Moh. Robikhul Ikhsan Munakhir Mudjosemedi Oey, Lusiana Sandra Pratama, Ananta Kusuma Yoga Pratama, Ananta Kusuma Yoga Pratama, Buky Wahyu Rabuandika, Andi Restu Widiatmono Santi Nurmalia Nuzul Supardi Supardi Triansyah, Fadli Agus Triyogatama Wahyu Widodo V.J. Cytasari Widhi Afiatun Nafi’ah Widyaningrum, Rini Yosi Aprian Sari