Intelligent organ recognition with AI iterative reconstruction enhances contrast-enhanced CAP CT while reducing radiation dose

Intelligent organ recognition + AIIR in CAP CT improved image quality and cut effective dose 36% vs conventional reconstruction, with tube current down 45% (chest) and 33% (abdomen/pelvis) (p<0.001).

• AIIR optimal reconstruction levels were determined: soft tissue window level 4, lung window level 1.
• In 130 patients randomized, the AIIR group had significantly higher SNR, CNR, figure of merit, and subjective scores than the conventional-dose Karl iterative reconstruction group (p<0.001).
• Radiation dose was reduced by 36% (effective dose), 45% (chest tube current), and 33% (abdominopelvic tube current) without sacrificing image quality.

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