Objective: To investigate the relationship between the number of hyperintense foci of T2-weighted imaging (T2WI) and the efficacy of high-intensity focused ultrasound (HIFU) in the treatment of adenomyosis.
Methods: This prospective cohort study enrolled 102 patients with adenomyosis. Participants were classified into two groups: 50 patients in whom the number of hyperintense foci on magnetic resonance imaging (MRI) T2WI was more than five were placed in the >5 group and 52 patients in whom the number of hyperintense foci on MRI T2WI was five or fewer were placed in the ≤5 group. Uterine fibroid symptoms (UFS) and visual analog scale (VAS) scores were recorded as indicators for the course of adenomyosis treatment.
Results: Among the enrolled patients, 84 received HIFU treatment and were followed up. At 6, 12, 24, and 36 months after HIFU treatment, the UFS score of women in the >5 group was higher than that of the patients in the ≤5 group (P < 0.05). The ablation rate of MRI T2WI in the hyperintense foci ≤5 group was higher than the hyperintense foci >5 group (P < 0.05).
Conclusion: Number of MRI T2WI hyperintense foci is a factor affecting the ablation rate and the clinical efficacy of HIFU treatment in women with adenomyosis. It is likely to be a predictor of the efficacy of HIFU in adenomyosis treatment.
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