Publikasi Dosen

The Effect Of Exposure Index Variations On Subjective Quality Assessment On Lumbosacral Examination

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Abstract. This study discusses the effect of variations in exposure index or exposure index (EI) on subjective
image quality assessment on lumbosacral radiographic examination. The method used in this research is
descriptive quantitative which is done by filling out questionnaires and calculating the radiation output dose.
Then to draw conclusions, perform a visual grading analysis (VGA) statistical test using the one-way
ANOVA test. The results obtained by varying the EI for AP projections of 2.99 (overexposed), 2.79 (optimal),
and 2.33 (underexposed) then for Lateral projections of 2.91 (overexposed), 2.76 (optimal), and 2.46
(underexposed). Furthermore, the dose calculation using the radiation output equation produces 3.158 mGy
(overexposed), 0.78 mGy (optimal) and 0.57 mGy (underexposed) for the AP projection while for the lateral
projection it produces a radiation dose of 3.61 mGy (overexposed), 1.52 mGy (optimal). , and 0.78 mGy
(underexposed). Then to get a conclusion, VGA test was carried out using ANOVA testing, the data
generated after performing ANOVA tests on AP and lateral projections showed results of 0.87 and 0.612.
Based on the ANOVA results that have been carried out, it can be concluded that all respondents have the
same assessment of the quality of the lumbosacral image subjectively or visually, there is no significant
difference between each image but has a different EI value, but images with an overexposed EI value have a
different image. better than the other two EI indicators.
Keywords: Exposure Index, Visual Grading Analysis, Radiation Output

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

001.43

Penerbit

Lampung : Unila., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

001.43

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

2022

Subjek

exposure index
Radiation Output
Visual Grading Analysis

Info Detail Spesifik

Publication on Jurnal Teori dan Aplikasi Fisika , Vol. 10, No. 01, Januari 2022;kd19-05-2022gd

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