Factors affecting energy efficiency factor in high intensity focused ultrasound for adenomyosis / 中国医学影像技术

ABSTRACT

Objective: To explore the factors affecting energy efficiency factor (EEF) in high intensity focused ultrasound for adenomyosis. Methods: Data of 130 patients with adenomyosis treated with high intensity focused ultrasound were retrospectively analyzed. The factors affecting EEF in high intensity focused ultrasound were identified with difference and correlation analyses. And a multiple linear regression equation was obtained by multivariate analysis. Results: The course of disease (X1), abdominal wall scar (X2), gonadotropin releasing hormone agonist (GnRH-a) pretreatment (X3), blood flow grade (X4), abdominal wall thickness (X5) and target-skin distance (X6) were the influencing factors of EEF in high intensity focused ultrasound with the multiple linear regression equation as Y=-17.742+1.153X1+14.927X2-13.846X3+4.713X4+1.422X5+0.227X6. Conclusion: High intensity focused ultrasound treatment presents lower EEF and higher ablation efficiency in patients with adenomyosis who have short course of disease, no abdominal wall scar, GnRH-a pretreatment, little blood flow in the lesion, thin abdominal wall and short target-skin distance.