Comparison of ablation zone between 915- and 2,450-MHz cooled-shaft microwave antenna: results in in vivo porcine livers.

Sun, Yuanyuan; Wang, Yang; Ni, Xiaoxia; Gao, Yongyan; Shao, Qiujie; Liu, Lanfen; Liang, Ping · AJR Am J Roentgenol · 2009

basic_science · Level V

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Abstract

The objective of our study was to compare the ablation zones of two cooled-shaft microwave antennae-one operating at 915 MHz and one operating at 2,450 MHz-in in vivo porcine livers. The 915-MHz cooled-shaft microwave antenna can lead to deeper penetration of liver tissue and can yield a significantly larger ablation zone than the 2,450-MHz cooled-shaft antenna in in vivo porcine livers. In light of the result, 915-MHz cooled-shaft microwaves may be more effective for tumor ablation, especially for large tumors.

Medical subject headings