title: A survey of ultrasound elastography approaches to percutaneous ablation monitoring.
abstract: Percutaneous thermal ablation has been widely used as a minimally invasive treatment for tumors. Treatment monitoring is essential for preventing complications while ensuring treatment efficacy. Mechanical testing measurements on tissue reveal that tissue stiffness increases with temperature and ablation duration. Different types of imaging methods can be used to monitor ablation procedures, including temperature or thermal strain imaging, strain imaging, modulus imaging, and shear modulus imaging. Ultrasound elastography demonstrates the potential to become the primary imaging modality for monitoring percutaneous ablation. This review briefly presented the state-of-the-art ultrasound elastography approaches for monitoring radiofrequency ablation and microwave ablation. These techniques were divided into four groups: quasi-static elastography, acoustic radiation force elastography, sonoelastography, and applicator motion elastography. Their advantages and limitations were compared and discussed. Future developments were proposed with respect to heat-induced bubbles, tissue inhomogeneities, respiratory motion, three-dimensional monitoring, multi-parametric monitoring, real-time monitoring, experimental data center for percutaneous ablation, and microwave ablation monitoring.
authors.affiliation: College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China.
authors.forename: Zhuhuang
authors.initials: Z
authors.lastname: Zhou
authors.affiliation: College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, China.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Wu
authors.affiliation: College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China wushuicai@bjut.edu.cn tsuiph@mail.cgu.edu.tw.
authors.forename: Shuicai
authors.initials: S
authors.lastname: Wu
authors.affiliation: School of Electronic Information Engineering, Tianjin University, Tianjin, China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Xia
authors.affiliation: Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
authors.forename: Chiao-Yin
authors.initials: CY
authors.lastname: Wang
authors.affiliation: College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China.
authors.forename: Chunlan
authors.initials: C
authors.lastname: Yang
authors.affiliation: Department of Computer Science and Information Engineering, Chang Gung University, Taoyuan, Taiwan.
authors.forename: Chung-Chih
authors.initials: CC
authors.lastname: Lin
authors.affiliation: Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan Medical Image Research Center, Institute for Radiological Research, Chang Gung University, Taoyuan, Taiwan.
authors.forename: Po-Hsiang
authors.initials: PH
authors.lastname: Tsui
mesh_terms: D017115:Catheter Ablation / Q000379:methods*; D054459:Elasticity Imaging Techniques / Q000379:methods*; D004564:Electrocoagulation / Q000379:methods*; D006801:Humans; D008872:Microwaves / Q000627:therapeutic use*; D016343:Monitoring, Intraoperative / Q000379:methods*; D025321:Surgery, Computer-Assisted / Q000379:methods*
keywords: Radiofrequency ablation; elastography; microwave ablation; ultrasound