Radiofrequency　ablation　(RFA)　is　a　minimally　invasive　method　for　treating　tumors.　Shear　wave　elastography　(SWE)　has　been　widely　applied　in　evaluating　tissue　stiffness　and　final　ablation　size　after　RFA.　However,　the　usefulness　of　periablation　SWE　imaging　in　assessing　RFA　remains　unclear.　Therefore,　this　study　investigated　the　correlation　between　periablation　SWE　imaging　and　final　ablation　size.　An　in　vitro　porcine　liver　model　was　used　for　experimental　validation　(n　=　36).　During　RFA　with　a　power　of　50　W,　SWE　images　were　collected　using　a　clinical　ultrasound　system.　To　evaluate　the　effects　of　tissue　temperature　and　gas　bubbles　during　RFA,　changes　in　the　ablation　temperature　were　recorded,　and　image　echo　patterns　were　measured　using　B-mode　and　ultrasound　statistical　parametric　images.　After　RFA,　the　gross　pathology　of　each　tissue　sample　was　compared　with　the　region　of　change　in　the　corresponding　periablation　SWE　image.　The　experimental　results　showed　that　the　tissue　temperature　at　the　ablation　site　varied　between　70　degrees　C　and　100　degrees　C.　Hyperechoic　regions　and　changes　were　observed　in　the　echo　amplitude　distribution　induced　by　gas　bubbles.　Under　this　condition,　the　confounding　effects　(including　the　temperature　increase,　tissue　stiffness　increase,　and　presence　of　gas　bubbles)　resulted　in　artifacts　in　the　periablation　SWE　images,　and　the　corresponding　region　correlated　with　the　estimated　final　ablation　size　obtained　from　the　gross　pathology　(r　=　0.8).　The　findings　confirm　the　feasibility　of　using　periablation　SWE　imaging　in　assessing　RFA.