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All Journal Jurnal Teras Kesehatan Sevaka: Hasil Kegiatan Layanan Masyarakat
Alvin Fachrully Septiano
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Agriculture, Biological Sciences & Forestry Humanities Education Engineering Health Professions Languange, Linguistic, Communication & Media Medicine & Pharmacology Physics Public Health

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Pemanfaatan Bioplastik Timbal untuk Menurunkan Dosis Radiasi pada Pemeriksaan Femur dengan Posisi Detektor Potret dan Diagonal melalui Pendekatan Citra dan Anatomi: RADIATION DOSE REDUCTION IN FEMUR EXAMINATION USING LEAD BIOPLASTICS: AN IMAGING AND ANATOMICAL APPROACH Alvin Fachrully Septiano; Oktarina Damayanti
JURNAL TERAS KESEHATAN Vol 8 No 2 (2025): Jurnal Teras Kesehatan
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Al Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38215/jtkes.v8i2.210

Abstract

X-ray radiation in the medical field offers substantial diagnostic benefits but also poses potential risks to both patients and medical personnel. This study aims to evaluate the effectiveness of bioplastic made from cassava starch and lead acetate as a radiation dose absorber in femur radiographic examinations. The examinations were conducted using Anteroposterior (AP) and Lateral projections with portrait and diagonal detector positions. Image processing utilized the Gaussian High Pass Filter (GHPF) method with cut-off frequencies of 5, 10, and 15 Hz. Image analysis was performed using Contrast to Noise Ratio (CNR) and Peak Signal to Noise Ratio (PSNR). The results indicated that the use of bioplastic reduced CNR and PSNR values compared to examinations without bioplastic, although the image quality remained within acceptable clinical limits. For instance, in the AP diagonal projection with a 5 Hz cut-off, the CNR value for the proximal femur was 22.86 (with bioplastic) versus 21.95 (without bioplastic), while the corresponding PSNR values were 11.1 and 11.6, respectively. Additionally, radiation dose attenuation was supported by increased Mean Squared Error (MSE) values, indicating effective shielding by the bioplastic. Cut-off frequencies of 5 and 10 yielded the best image quality in both conditions.
Sehat Jiwa Cirebon: Intervensi Psikologi Positif Berbasis Kearifan Lokal Untuk Peningkatan Kesehatan Mental Masyarakat Pesisir Habib Priyono; Annas Alkhowarizmi; Alvin Fachrully Septiano
Sevaka : Hasil Kegiatan Layanan Masyarakat Vol. 3 No. 3 (2025): Agustus : Sevaka : Hasil Kegiatan Layanan Masyarakat
Publisher : STIKES Columbia Asia Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62027/sevaka.v3i3.482

Abstract

Mental health among coastal communities remains a critical issue often overlooked by formal interventions. This community service activity aimed to enhance the psychological well-being of residents in Astapada Village, Gunungjati Subdistrict, Cirebon, using a positive psychology approach integrated with local cultural wisdom. The method used was a participatory community-based approach involving training in gratitude journaling, character strengths, and meaning therapy, combined with traditional arts practices such as mask dancing and batik making. Evaluation using the WHO-5 Wellbeing Index showed a significant increase in participants' psychological well-being scores, from an average of 43.77 to 66.40. Additionally, social initiatives emerged, including the formation of the “Rembug Jiwa” community and the rise of local leaders promoting program sustainability. These findings indicate that culturally contextualized positive psychology interventions can serve as effective strategies for improving mental health at the community level.
Reduksi dosis radiasi pemeriksaan femur dengan bioplastik timbal: pendekatan citra dan anatomi Oktarina Damayanti; Alvin Fachrully Septiano
JURNAL TERAS KESEHATAN Vol 8 No 2 (2025): Jurnal Teras Kesehatan
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Al Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38215/mpr3bs83

Abstract

X-ray radiation plays a vital role in medical diagnostics but carries potential risks for both patients and healthcare workers. This study evaluates the effectiveness of cassava starch–based bioplastic combined with lead acetate as an absorber of radiation dose during femur radiographic examinations. The tests were performed using Anteroposterior (AP) and Lateral projections with both portrait and diagonal detector positions. Image processing applied the Gaussian High Pass Filter (GHPF) method at cut-off frequencies of 5, 10, and 15 Hz. Image quality was analyzed through Contrast to Noise Ratio (CNR) and Peak Signal to Noise Ratio (PSNR). Results showed that the use of bioplastic slightly decreased CNR and PSNR values compared to examinations without bioplastic; however, the quality remained within acceptable diagnostic standards. For example, in AP diagonal projection at 5 Hz, CNR reached 22.86 (with bioplastic) versus 21.95 (without), while PSNR values were 11.1 and 11.6, respectively. Increased Mean Square Error (MSE) values confirmed radiation attenuation, supporting effective shielding. Optimal image quality occurred at 5–10 Hz cut-offs, while 15 Hz produced misleading impressions of osteoporosis. Overall, lead-based bioplastic effectively reduces radiation dose while preserving diagnostic value, offering a safer and eco-friendly alternative in radiographic imaging.
Co-Authors Annas Alkhowarizmi Habib Priyono Oktarina Damayanti