Waran Vicknes, Menon Roshni, Pancharatnam Devaraj, Rathinam Alwin Kumar, Balakrishnan Yuwaraj Kumar, Tung Tan Su, Raman Rajagopalan, Prepageran Narayanan, Chandran Hari, Rahman Zainal Ariff Abdul
Division of Neurosurgery, University of Malaya, Lembah Pantai, Kuala Lumpur, Malaysia.
Am J Rhinol Allergy. 2012 Sep 1;26(5):132-136. doi: 10.2500/ajra.2012.26.3808.
Surgical navigation systems have been used increasingly in guiding complex ear, nose, and throat surgery. Although these are helpful, they are only beneficial intraoperatively; thus, the novice surgeon will not have the preoperative training or exposure that can be vital in complex procedures. In addition, there is a lack of reliable models to give surgeons hands-on training in performing such procedures.
A technique using an industrial rapid prototyping process by three-dimensional (3D) printing was developed, from which accurate spatial models of the nasal cavity, paranasal sinuses (sphenoid sinus in particular), and intrasellar/pituitary pathology were produced, according to the parameters of an individual patient. Image-guided surgical (IGS) techniques on two different platforms were used during endoscopic transsphenoidal surgery to test and validate the anatomical accuracy of the sinus models by comparing the models with radiological images of the patient on IGS.
It was possible to register, validate, and navigate accurately on these models using commonly available navigation stations, matching accurately the anatomy of the model to the IGS images.
These 3D models can be reliably used for teaching/training and preoperative planning purposes.
手术导航系统在引导复杂的耳鼻喉手术中使用得越来越频繁。尽管这些系统很有帮助，但它们仅在术中有益；因此，新手外科医生将无法获得在复杂手术中至关重要的术前训练或接触机会。此外，缺乏可靠的模型来让外科医生进行此类手术的实践培训。
开发了一种利用工业快速成型工艺通过三维（3D）打印的技术，根据个体患者的参数制作鼻腔、鼻窦（特别是蝶窦）以及鞍内/垂体病变的精确空间模型。在内镜经蝶窦手术期间，在两个不同平台上使用图像引导手术（IGS）技术，通过将模型与患者在IGS上的放射图像进行比较，来测试和验证鼻窦模型的解剖准确性。
使用常见的导航设备能够在这些模型上准确配准、验证和导航，使模型的解剖结构与IGS图像精确匹配。
这些3D模型可可靠地用于教学/培训和术前规划目的。
