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目的 為房顫消融手術(shù)提供一種自動(dòng)精確的電解剖圖與CT曲面配準(zhǔn)算法。方法 首先，以基于主軸的方法粗配準(zhǔn)電解剖圖與CT曲面,然后以基于迭代最近點(diǎn)的方法進(jìn)一步精配準(zhǔn)兩圖。結(jié)果 采用CartoMerge、隨機(jī)方法和本文提出的基于迭代最近點(diǎn)的方法分別逐一配準(zhǔn)三組真實(shí)和三組模擬的電解剖圖與CT曲面。相對(duì)Carto-Merge和隨機(jī)方法，基于迭代最近點(diǎn)的方法配準(zhǔn)結(jié)果穩(wěn)定，精度最高，而且算法完全自動(dòng)，無(wú)需任何手動(dòng)操作。結(jié)論 基于迭代最近點(diǎn)的電解剖圖與CT曲面配準(zhǔn)算法能很好地滿(mǎn)足臨床房顫消融手術(shù)的需求。

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