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January 1, 2026Japanese Journal of Radiological TechnologyOpen Access

Fundamental Study on Fluoroscopy Dose Rate Reduction in Pediatric Angiography Using an X-ray Cut Filter

Yusuke Takada Hidemitsu Otsu Naoki Yoshikawa Kojiro Nishijima

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Key Points

To investigate the effectiveness of the MJP x-ray cut filter in reducing fluoroscopy dose rates during pediatric angiography and its impact on image quality.
Measured fluoroscopy dose rates and conducted spectral analysis.
Assessed signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and visual evaluation in 412 pediatric patients.
Evaluated catheter visibility using paired comparison method.
Fluoroscopy dose rate decreased by 15%-25% with cut filter use.
Spectral analysis confirmed reduction of low-energy components when the cut filter was used.
SNR change ranged from -1.7% to 3.0%, while CNR showed a 27% decrease at 20 cm PMMA thickness.

Implication

Demonstrates reduced dose rates in pediatric angiography, suggesting safer imaging practices.

Abstract

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Cite This Study

Takada et al. (2026) studied this question.

synapsesocial.com/papers/6a22672f763171746d545e54 https://doi.org/10.6009/jjrt.26-1617

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5Influence of a long air gap and a ratio 15:1 antiscatter grid on pediatric fluoroscopy and angiography image qualityReview · 2026

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