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ANALISIS PENGARUH FAKTOR EKSPOSI TERHADAP KUALITAS CITRA RADIOGRAFI INTRAORAL PERIAPIKAL DI DENTAL LEARNING CENTER UNIVERSITAS GADJAH MADA (UGM) YOGYAKARTA
Intraoral radiography is one of the most widely used imaging modalities in dentistry. Understanding the technical parameters of this device is important for producing optimal image quality to support diagnosis. This study aims to analyze the effect of variations in tube voltage (kVp) and exposure time (mAs) on the quality of intraoral radiographic images based on the parameters of signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and modulation transfer function (MTF). The study was conducted using a Kavo Focus intraoral radiography unit and a dental X-ray phantom. Radiographic image data were obtained with tube voltages of 60 kVp and 70 kVp, along with five variations in exposure time (0.70 – 4.41 mAs), and analyzed using IndoQCT software and Microsoft Excel with simple linear regression statistical tests. The results showed that increasing mAs significantly improved SNR and CNR values at 60 kVp with a strong correlation. Conversely, at 70 kVp, increasing mAs did not significantly affect SNR values but still had a significant positive effect on CNR. Increasing kVp improved SNR and CNR values but did not affect MTF. MTF values with varying mAs showed results with random fluctuations due to noise and ROI positioning accuracy. SNR, CNR, and MTF values from intraoral radiographic images met good image quality standards. These findings support the use of 60 kVp as the optimal voltage for intraoral radiographic imaging and support radiation protection in accordance with the ALARA principle. This study contributes to bridging the literature gap regarding the relationship between exposure factors and image quality by comprehensively analyzing them in intraoral radiography.
FAKULTAS SAINS DAN TEKNOLOGI, UIN SUNAN KALIJAGA YOGYAKARTA
ANALISIS PENGARUH FAKTOR EKSPOSI TERHADAP KUALITAS CITRA RADIOGRAFI INTRAORAL PERIAPIKAL DI DENTAL LEARNING CENTER UNIVERSITAS GADJAH MADA (UGM) YOGYAKARTA (Text)
ANALISIS PENGARUH FAKTOR EKSPOSI TERHADAP KUALITAS CITRA RADIOGRAFI INTRAORAL PERIAPIKAL DI DENTAL LEARNING CENTER UNIVERSITAS GADJAH MADA (UGM) YOGYAKARTA (Other)
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