Analisis Optimasi Citra Radiografi Pada Pemeriksaan Thorax Sistem Computed Radiography (CR) Terhadap Entrance Surface Dose (ESD)

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Published: Mar 20, 2019
DOI: https://doi.org/10.47313/jig.v17i1.533
Keywords:
Variasi faktor eksposi Dosis permukaan Computed Radiography (CR)

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Tri Ambarsari
Program Studi Fisika, Universitas Nasional
Budi Santoso
Program Studi Fisika, Universitas Nasional
Nursama Heru Apriantoro
Poltekkes Kemenkes Jakarta 2, Jakarta
Febria Anita
Program Studi Fisika, Universitas Nasional

Abstract

Telah dilakukan penelitian analisis variasi faktor eksposi pemeriksaan thorax terhadap dosis permukaan dan noise pada citra radiografi. Dilakukan 10 (sepuluh) kali ekspos pada phantom thorax dengan faktor  eksposi 50 kV- 8 mAs, 50 kV-10 mAs, 55 kV- 8 mAs, 55 kV-10 mAs, 55 kV-10 mAs, 60 kV- 8 mAs, 60 kV-10 mAs, 66 kV-8 mAs, 66 kV-10 mAs dan 102 kV- 1 mAs, 102 kV - 2,5 mAs untuk teknik kV tinggi. Untuk masing-masing faktor eksposi ditempelkan satu TLD yang diletakkan di tengah lapangan penyinaran untuk mengukur nilai dosis permukaan. Kondisi eksposi optimum pemeriksaan thorax PA (dinyatakan dengan nilai lgM ) terjadi ketika penggunaan faktor eksposi 55 kV dengan 8 mAs karena nilai lgM yang didapat yaitu 1,91 , nilai standar deviasi 6,605 dan nilai ESD sebesar 0,098 mGy.

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How to Cite
Ambarsari, T., Santoso, B., Apriantoro, N. H., & Anita, F. (2019). Analisis Optimasi Citra Radiografi Pada Pemeriksaan Thorax Sistem Computed Radiography (CR) Terhadap Entrance Surface Dose (ESD). Jurnal Ilmiah Giga, 17(1), 1–8. https://doi.org/10.47313/jig.v17i1.533
Issue
Vol. 17 No. 1 (2014): Volume 17 Edisi 1 Tahun 2014
Section
Articles

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