Clinical application of indocyanine green angiography and infrared thermal imaging in assessing amputation levels
Objective To investigate the clinical application value of indocyanine green angiography(ICGA)and infrared thermal ima-ging in the evaluation of intercept plane.Methods A total of 18 patients considered for finger amputation due to limb blood circula-tion disorders caused by trauma or diabetes were selected as the study objects from December 2021 to December 2023 in the Depart-ment of Burn and Plastic Surgery,Beijing Jishuitan Hospital Affiliated to Capital Medical University.All patients were evaluated by IC-GA technology and infrared thermal imager prior to surgical treatment.Based on intraoperative findings and final limb salvage length,the two methods were used to evaluate the accuracy of finger amputation decisions and the prediction of finger amputation plane.Results In 18 patients,a total of 32 fingers needed to be determined on the plane of finger amputation.Among them,27 fingers un-derwent finger amputation on different planes,and 5 fingers did not undergo finger amputation.The accuracy of ICGA's truncated deci-sion was 90.6%(29/32)and 84.4%(27/32)for infrared imaging.Among the 27 fingers in the amputation outcome,the prediction ac-curacy of the amputation plane was 88.9%(24/27)for ICGA and 92.6%(25/27)for infrared imaging.Conclusion ICGA and infra-red thermal imaging technology have high accuracy in assessing the amputation plane of fingers and can provide a scientific basis for clinical decision-making.
Indocyanine green angiographyInfrared thermal imagingAmputation planeClinical application