Risk Factors and Preventive Measures of CT Enhanced High Pressure Injection Extravasation Were Analyzed Based on the Nomogram Model
Objective To analyze the risk factors of CT enhanced high pressure injection extravasation based on the column graph model,and analyze the countermeasures to prevent CT enhanced high pressure injection extravasation.Methods The clinical data of patients with high-pressure injection extravasation who underwent enhanced CT scan in our hospital from January 2020 to June 2023 were reviewed(extravasation group,n=72).The clinical data of patients without high pressure injection extravasation were also reviewed(no extravasation group,n=216).Logistic regression model was used to analyze and identify the risk factors leading to CT enhanced high-pressure injection extravusion,and a nomogram prediction model was constructed according to independent risk factors.Receiver operating characteristic curve(ROC),Bootstrap test and Calibration curve were used to evaluate the model.Results The proportion of patients in extravasation group with age＞60 years,BMI＞24 kg/m2,wrist injection,no heating with contrast agent,injection rate＞3 mL/s and history of chemotherapy were higher than those in non-extravasation group(P＜0.05).Logistic regression model analysis showed that age＞60 years old,wrist injection,injection rate＞3 mL/s,and chemotherapy history were independent risk factors for high pressure injection extravasation.The ROC curve showed that the AUC of the prediction model was 0.828(95％CI:0.780～0.870),the sensitivity was 90.28％,the specificity was 78.70％,and the Yoden index was 0.690.The Calibration results from Bootstrap verification showed that the C-index value was 0.762(95％CI:0.651～0.816).The calibration curve showed that Hosmer-Lemeshow x2=0.628,P=0.317.Conclusion Age＞60 years,BMI＞24kg/m2,wrist injection,heating without contrast agent,injection rate＞3mL/s,and history of chemotherapy are independent risk factors for high pressure injection extravasation in enhanced CT scan.The prediction model based on the above factors has high predictive efficiency for CT enhanced high-pressure injection extravasation.
CT Enhanced ScanHigh Pressure Injection ExtravasationRisk FactorsA NomogramPrediction Model
万方数据
维普
