Abstract: Objective: To analyze the application value of color Doppler ultrasound in the treatment of infantile hemangiomas with dual-wavelength laser. Methods: Clinical data of hemangioma patients treated in the author's department from March 2021 to March 2023 were retrospectively selected. All patients underwent color Doppler ultrasonography prior to Cynergy dual-wavelength laser therapy, and the treatment effects and complications were observed according to different blood flow signals and skin lesion depths. Results: A total of 198 children with hemangiomas were included in the analysis, with a total of 212 skin lesions. According to the blood flow signals, the patients were divided into no blood flow signal in 73 cases (34.3%), sparse blood flow signal in 76 cases (35.8%), and moderate blood flow signal in 63 cases (29.9%), with effective rates of 100%, 96.1%, and 85.7%, respectively, with significant differences (Ps<0.05). According to the depth of skin lesions, the patients were divided into ＜1.2mm in 69 cases (32.5%), 1.2-3.0 mm in 88 cases (41.5%), and ＞3 mm in 55 cases (26.0%), with effective rates of 100%, 94.3%, and 83.6%, respectively, with significant differences (Ps<0.05). Among all included patients, 21.7% of children experienced adverse reactions. Conclusion: Color Doppler ultrasound has important application value in the treatment of infantile hemangiomas with dual-wavelength laser. It can monitor the treatment process in real-time and help clinicians estimate the efficacy.

Key words: color doppler ultrasound, infantile hemangioma, blood flow signal, depth of lesion, laser