A globally convergent algorithm of space resection based on quaternion is presented by combining good application of quaternion in photogrammetry.

结合四元数在摄影测量中的良好应用，提出一种基于四元数的空间后方交会全局收敛算法。

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Conclusion: parapharyngeal space is deep in the tumor location and special. Most are benign. Malignant one is rare. Surgical resection is the basic method of treatment. Cancer has poor prognosis.

结论：咽旁间隙肿瘤位置深在、特殊，大部分为良性，恶性少见，手术切除是主要治疗方法，恶性肿瘤预后较差。

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This paper presents a new approach for processing data of space resection in terms of matrices transformation theory.

根据矩阵理论，推导了空间后交的一种新算法。

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