PMID- 31597487 OWN - NLM STAT- MEDLINE DCOM- 20210304 LR - 20220420 IS - 1365-2931 (Electronic) IS - 1364-5706 (Linking) VI - 30 IP - 1 DP - 2021 Feb TI - Computer modeling and in vitro experimental study of water-cooled microwave ablation array. PG - 12-20 LID - 10.1080/13645706.2019.1674878 [doi] AB - INTRODUCTION: Microwaves (MWs) quickly deliver relatively high temperatures into tumors and cover a large ablation zone. We present a research protocol for using water-cooled double-needle MW ablation arrays for tumor ablation here. MATERIAL AND METHODS: Our research program includes computer modeling, tissue-mimicking phantom experiments, and in vitro swine liver experiments. The computer modeling is based on the finite element method (FEM) to evaluate ablation temperature distributions. In tissue-mimicking phantom and in vitro swine liver ablation experiments, the performances of the new device and the single-needle MW device currently used in clinical practice are compared. RESULTS: FEM shows that the maximum transverse ablation diameter (MTAD) is 4.2 cm at 100 W output and 300 s (assessed at the 50 degrees C isotherm). In the tissue-mimicking phantom, the MTDA is 2.6 cm at 50 W and 300 s in single-needle MW ablation, and 4 cm in double needle MW ablation array. In in vitro swine liver experiments, the MTAD is 2.820 +/- 0.127 cm at 100 W and 300 s in single-needle MW ablation, and 3.847 +/- 0.103 cm in MW ablation array. CONCLUSION: A new type of water-cooled MW ablation array is designed and tested, and has potential advantages over currently used devices. FAU - Chen, Dui-Dui AU - Chen DD AUID- ORCID: 0000-0003-3722-713X AD - Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China. FAU - Du, Yu-Xin AU - Du YX AD - School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, China. FAU - Chen, Zu-Bing AU - Chen ZB AD - Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China. FAU - Lang, Liang AU - Lang L AD - School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, China. AD - National Key Laboratory of Science and Technology on Multi-Spectral Information Processing, Huazhong University of Science and Technology, Wuhan, China. FAU - Ye, Zi AU - Ye Z AD - Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China. FAU - Yang, Qiang AU - Yang Q AD - Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China. FAU - Shen, Shi-Qiang AU - Shen SQ AD - Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China. FAU - Lei, Zhen-Yu AU - Lei ZY AD - Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China. FAU - Zhang, Si-Qi AU - Zhang SQ AD - Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China. LA - eng PT - Journal Article DEP - 20191010 PL - England TA - Minim Invasive Ther Allied Technol JT - Minimally invasive therapy & allied technologies : MITAT : official journal of the Society for Minimally Invasive Therapy JID - 9612996 RN - 059QF0KO0R (Water) SB - IM MH - Animals MH - *Catheter Ablation MH - Computers MH - Liver/surgery MH - *Microwaves MH - Swine MH - Water OTO - NOTNLM OT - Finite-element method (FEM) OT - microwave ablation OT - microwave ablation device OT - tissue-mimicking phantom EDAT- 2019/10/11 06:00 MHDA- 2021/03/05 06:00 CRDT- 2019/10/11 06:00 PHST- 2019/10/11 06:00 [pubmed] PHST- 2021/03/05 06:00 [medline] PHST- 2019/10/11 06:00 [entrez] AID - 10.1080/13645706.2019.1674878 [doi] PST - ppublish SO - Minim Invasive Ther Allied Technol. 2021 Feb;30(1):12-20. doi: 10.1080/13645706.2019.1674878. Epub 2019 Oct 10.