FUAS procedure
Preparation before FUAS and during the FUAS procedure conformed to the
guideline of Focused Ultrasound Tumor Therapeutic System (Model-JC200,
Chongqing Haifu Medical Technology Co., Ltd.)9,13. The
ablation volume and non-perfused
volume (NPV) ratio of adenomyotic lesions were performed by
contrast-enhanced ultrasound15. Treatment details
including total ablation time, sonication time and average sonication
power were recorded by computer. The ablation volume was calculated
using the ellipsoid volume formula V=4/3πABC16, in
which A, B and C represent the long diameter, wide diameter and
thickness diameter of the lesion, respectively. The NPV ratio =
NPV/adenomyotic lesion*100%9. All patients were kept
under observation for 24h after FUAS.