Half-dose contrast media protocol using 70 kVp abdominal dynamic CT with super-resolution deep learning reconstruction: Evaluation of image quality and contrast performance.

Yuuta Nakano¹, Kyohei Takahata², Hiroaki Okada², Akiko Narita², Kazuma Kiryu³, Kenichi Kondo³, Taro Sakashita⁴, Nozomu Matsunaga², Shuji Ikeda², Masashi Shimohira², Hisashi Kawai², Kojiro Suzuki²

¹Department of Radiology, Aichi Medical University, Nagakute, Aichi, Japan. Electronic address: nakano.yuuta.068@mail.aichi-med-u.ac.jp.

²Department of Radiology, Aichi Medical University, Nagakute, Aichi, Japan.

³Department of Radiological Technology, Aichi Medical University Hospital, Nagakute, Aichi, Japan.

⁴Canon Medical Systems Corporation, Otawara, Tochigi, Japan.

PubMed DOI

Abstract

OBJECTIVE: To evaluate contrast enhancement and image quality in 70 kVp abdominal dynamic CT using super-resolution deep learning reconstruction (SR-DLR) with reduced iodine contrast media (CM). METHODS: A total of 600 patients who underwent abdominal dynamic CT using SR-DLR were retrospectively investigated (estimate glomerular filtration rate [eGFR] ≤ 45 mL/min/1.73 m2, 70 kVp, iodine 300 mgI/k…

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Mentioned Companies

Canon Medical
affiliation

MeSH Terms

Contrast Media*Humans0Deep Learning*Female0Tomography, X-Ray Computed*Radiographic Image Interpretation, Computer-Assisted*Male0Radiography, Abdominal*Retrospective Studies0Radiographic Image Enhancement0Middle Aged0Aged0Reproducibility of Results0Signal-To-Noise Ratio0Sensitivity and Specificity0Radiation Dosage0

Keywords

Abdominal imagingContrast reductionDeep learning reconstructionDynamic CTLow-kilovoltage CTSuper-resolution

Article Info

PMID: 42176557
DOI: 10.1016/j.ejrad.2026.112959
Received: January 22, 2026
Accepted: May 19, 2026

How to Cite

Nakano Y et al. Half-dose contrast media protocol using 70 kVp abdominal dynamic CT with super-resolution deep learning reconstruction: Evaluation of image quality and contrast performance. Eur J Radiol2026;202112959. doi:10.1016/j.ejrad.2026.112959

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