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All Journal Journal of Medical Physics and Biophysics Jurnal Pengabdian Masyarakat dan Riset Pendidikan
FERY ARDIANSYAH
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Humanities Education Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Other

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Pengukuran MTF (Modulation Transfer Function) berdasarkan LSF (Line Spread Function) dan PSF (Point Spread Function) pada pesawat PET/CT dan SPECT/CT Sharah Nataz Shilfa; M. Roslan Abdul Gani; Intan Apriliani Syaridatul Mu’minah; Fery Ardiansyah; Lukmanda Evan Lubis; Djarwani Soeharso Soejoko
Journal of Medical Physics and Biophysics Vol 6, No 1 (2019)
Publisher : Indonesian Association of Physicists in Medicine (AIPM/AFISMI)

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Abstract

This study aims to know the value of MTF obtained by using two methods: LSF (Line Spread Function) and PSF (Point Spread Function) on PET/CT and SPECT/CT. Measurement done with LSF method performed by thin flood source 18F or 99mTc 12 mCi, while PSF using thin line source 18F atau 99mTc 2 mCi with diameter 0.5 mm. The MTF calculations are performed based on image profile, for PET/CT assisted by 3 filter types and 4 reconstruction algorithms while SPECT/CT based on collimator variation. MTF calculation method have done based on Tsujioka et al. (2014) by combining the ImageJ, MATLAB, and Origin spreadsheet. System performance is determined at 10% MTF. The measurement results on PET/CT showed MTF highest value obtained by the Butterworth filter and reconstruction algorithm Iterative, Iterative 3D, and Backprojection with identical MTF value (0.155 cycles/mm) for LSF method, while PSF method by using Butterworth filter and Backprojection reconstruction algorithm obtained value 0.15 cycles/mm. In SPECT/CT, the second detector with LEHR collimator give MTF value to the LSF method and PSF method sequently 0.104 cycles/mm and 0075 cycles/mm. Based on the advantages and disadvantages of both methods, generally the PSF method is recommended as a spatial resolution QC program for nuclear medicine modalities.
Melatih Warga dalam Membuat Logo, Kemasan Produk yang Menarik, Serta Strategi Pemasaran Digital Melalui Media Sosial Dan E-Commerce: Pengabdian Kusumastuti, Anggit Dyah; Diah Anggie Navita; Clarisa Elen Setiawati; Fery Ardiansyah; Adhelya Jeanie Anggraeni Putri
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 3 No. 4 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 3 Nomor 4 (April 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

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Abstract

Dalam era digital, kemampuan branding dan pemasaran online menjadi faktor penting dalam mendukung keberlangsungan usaha kecil dan menengah di tingkat warga. Pelatihan ini bertujuan untuk meningkatkan keterampilan warga dalam membuat logo, mendesain kemasan produk yang menarik, serta mengoptimalkan strategi pemasaran melalui media sosial dan e-commerce. Metode pelatihan meliputi ceramah, workshop, dan praktik langsung. Hasil menunjukkan peningkatan signifikan dalam pemahaman peserta mengenai identitas merek dan teknik pemasaran digital. Program ini berpotensi mendorong pertumbuhan ekonomi berbasis komunitas.
Co-Authors Adhelya Jeanie Anggraeni Putri Clarisa Elen Setiawati Diah Anggie Navita Djarwani Soeharso Soejoko Intan Apriliani Syaridatul Mu’minah Kusumastuti, Anggit Dyah Lubis, Lukmanda Evan M. Roslan Abdul Gani Sharah Nataz Shilfa