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All Journal Progressive Physics Journal Media Ilmiah Kesehatan Indonesia
Harmiati, Supri
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Astronomy Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Veterinary

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PENGARUH TEGANGAN TABUNG SINAR-X (kV) TERHADAP KUALITAS CITRA RADIOGRAFI FOTO TORAKS PASIEN COVID-19 Normawati, Sitti; Jumardin, Jumardin; Harmiati, Supri
Media Ilmiah Kesehatan Indonesia Vol. 2 No. 3 (2024): SEPTEMBER
Publisher : Pakis Journal Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/miki.v2i3.366

Abstract

Studi perbandingan kualitas gambar rontgen dada pada pasien infeksi Covid-19 dilakukan dengan menggunakan pesawat rontgen Digital Radiografi (DR). Akuisisi gambar dilakukan dalam sembilan eksposur dari tegangan rendah (kV) hingga tegangan tinggi (kV). Pemrosesan gambar dilakukan dengan menggunakan aplikasi software Image-J. Hasil radiografi yang diperoleh dianalisis menggunakan metode FFT (Fast Fourier Transform) dan analisis histogram. Dalam analisis FFT, citra sinar-X cenderung berbeda seiring perubahan tegangan tabung dari 45 kV hingga 57 kV. Dalam analisis histogram, citra sinar-X tergolong citra tidak lengkap karena sebaran piksel dalam rentang skala abu-abu belum sempurna untuk semua perubahan paparan radiasi sinar-X. Citra yang dihasilkan biasanya berbeda sehingga citranya tetap tidak sama pada saat menggunakan tegangan rendah (kV) maupun tegangan tinggi (kV). Puncak histogram menunjukkan intensitas piksel yang menonjol dan lebar puncak menunjukkan rentang kontras citra radiografi. Jika grafik histogram dominan menempati area minimum, maka citra merupakan gambar gelap, tetapi jika grafik histogram dominan menempati area maksimum, maka citra tersebut merupakan gambar terang.
Analisis Kualitas Citra Tegangan 48 kV dan 50 kV Pesawat Sinar-X Pada Pasien Covid-19 dengan Menggunakan Software Image-J Jumardin, Jumardin; Manarang, Hidayat DG; Umar, Eka Putriani; Normawati, Sitti; Harmiati, Supri
Progressive Physics Journal Vol. 5 No. 2 (2024): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v5i2.1433

Abstract

The process of analysing the quality of radiographic images produced by X-rays with 48 kV and 50 kV tube voltages in Covid-19 patients using ImageJ software has been carried out. The images analysed are the results of thoracic radiographic examinations using the same electric current strength in Covid-19 patients with 48 kV and 50 kV voltage variations. The image results come from converting the analogue format to digital format for further processing. The analysis method uses the FFT (Fast Fourier Transform) method and histogram analysis. Image quality was assessed based on pixel distribution, contrast and SNR (Signal to Noise Ratio) parameters. Visualisation of the distribution can be seen based on histogram analysis. In the histogram, the prominent intensity shows the pixel intensity and the peak width shows the contrast range in the image. If the histogram graph is distributed in the minimum area, the image tends to be dark and vice versa, if the histogram graph is more in the maximum area, the image tends to be bright. The results show that the 48 kV voltage has a more even distribution but has low contrast and SNR values compared to the 50 kV voltage. The results of this study provide an overview of the selection of kinetic parameters in patients and optimisation of X-ray technical parameters to obtain maximum image quality in radiographic diagnosis.
Co-Authors jumardin jumardin Manarang, Hidayat DG Umar, Eka Putriani