HIGH-INTENSITY FOCUSED ULTRASOUND TREATMENT OF LATE-STAGE PANCREATIC BODY CARCINOMA: OPTIMAL TUMOR DEPTH FOR SAFE ABLATION
- Ge, Hui-Yu
- Miao, Li-Ying
- Xiong, Liu-Lin
- Yan, Fang
- Zheng, Cui-Shan
- Wang, Jin-Rui
- Jia, Jian-Wen
- Cui, Li-Gang
- Chen, Wen
DOIAbstract
Objective criteria are currently not available for assessing the extent of ablation by high-intensity focused ultrasound (HIFU). A retrospective review was conducted in Chinese patients with late-stage pancreatic body carcinoma treated with 1 h/d intermittent HIFU at a single center. Clinical and procedure-related characteristics were examined in relation to tumor posterior depth. Clinically, tumor ablation was negatively correlated with posterior tumor depth, with a 1-cm increase in depth decreasing ablation by 30.7%. At a computed tomography (CT)-determined 7-cm posterior tumor depth (considered the critical value for the procedure), ablation sensitivity and specificity were 77.8% and 72.7%, respectively. Tumor ablation >30% in patient...
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