Detection and characterization of urinary stones using material-specific images derived from contrast-enhanced dual-energy CT urography.

Yannan Cheng,Lu Zhang,Le Cao,Xianghui Zhang,Tingting Qu,Jianying Li,Jiao Chen, Hui He,Jian Yang,Jianxin Guo

The British journal of radiology（2023）

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摘要

Material-specific images, especially the calcium(iodine) images in VP allow for reliable detection of urinary stones.Stone size measurement should be performed on the calcium(iodine) images in VP.Material density measurements on COD-HAP (VP) material decomposition images can be used to differentiate among pure calcium oxalate, mixed calcium oxalate and mixed carbonate phosphate stones with AUC of 0.72-0.74.

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