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Updated: May 18, 2026
Thermal Ablation for the Treatment of Abdominal Tumors
Published on: March 7, 2011
Percutaneous ultrasonography and computed tomography guided pancreatic cryoablation: feasibility and safety
Lizhi Niu1, Lihua He, Liang Zhou
1Department of Oncology, Fuda Cancer Hospital, Guangzhou, China.
Objective:
To assess the safety and feasibility of percutaneous cryoablation on pancreatic cancer via ultrasonography (US) and computed tomography (CT) guidance.
Materials And Methods:
This retrospective review was approved by the institutional review board and of informed consent. Thirty-two patients (18 men and 14 women; median age 62; age range, 30-77 years) with pancreatic cancer (stage II/III/IV, 3/11/18) treated with percutaneous US and CT guided cryoablations between February 2009 and February 2010 were eligible for this review. Thirteen tumors in pancreatic head and 19 in pancreatic body and/or tail measuring 2-11 cm (mean, 5.2 cm±8 [standard deviation]) were ablated with 49 procedures in total. Feasibility was analyzed by enhanced CT 1-3 months post procedure and safety was assessed by clinical signs, symptoms and laboratory results.
Results:
Neither procedural death nor serious complications occurred. Fifteen tumors (46.9%) smaller than 5 cm were successfully ablated by one session of cryoablation. Twenty-seven patients experienced a ≥50% reduction in pain score, 22 experienced a 50% decrease in analgesic consumption and 16 experienced a ≥20 increase in Karnofsky Performance Status (KPS) Score. Partial response (PR) and stable disease (SD) turned up in 9 and 21 patients, respectively, lesions in whom were identified controlled by none enhancement on enhanced CT. Mean and median survival was 15.9 and 12.6 months, respectively. The 6-, 12- and 24-month survival rates were 82.8%, 54.7% and 27.3%, respectively.
Conclusion:
US and CT guided percutaneous cryoablation is a safe and promising local treatment for pancreatic cancer.
