A clinical decision instrument can safely cut abdominopelvic CT usage in minor blunt trauma patients, minimizing unnecessary procedures.

• Among 894 patients, only 9.9% had clinically significant injuries.
• The tool identified five key predictors for injury, recommending imaging for 53.3% of patients.
• Sensitivity was high at 96.6%, with a negative predictive value of 99.3%.

Implementing this instrument may reduce radiation risks and healthcare costs while maintaining patient safety.