RESUMO
One of the main objectives of our 3-dimensional (3D) computer-assisted functional endoscopic sinus surgery was to design a computer-assisted 3D approach to the presurgical planning, intraoperative guidance, and postoperative analysis of the anatomic regions of the nose and paranasal sinuses. Such an extremely powerful approach should allow better insight into the operating field, thereby significantly increasing the safety of the procedure. The last step to implementing the technology in the operating room was to connect the computer workstations and video equipment to remote locations by using a high-speed, wide-bandwidth computer network. During patient preparation, the surgeon in the operating room consulted remote experienced and skillful surgeons by viewing CT images and 3D models on computer workstations. The surgeon and consultants used software for CT image previews and 3D model manipulations on top of collaboration tools to define the pathosis, produce an optimal path to the pathosis, and decide how to perform the real surgical procedure. With tele-flythrough or tele-virtual endoscopy rendered through the use of 3D models, both surgeons can preview all the characteristics of the region (ie, anatomy, pathosis) and so predict and determine the next steps of the operation. This ensures greater safety thanks to the operation guidance and reduces the possibility of intraoperative error. The duration of the teleconsultation is thus shortened, which may prove the greatest benefit of tele-3D computer-assisted surgery. If this method were used, clinical institutions would spend less money for telesurgical consultation.
Assuntos
Endoscopia/métodos , Seios Paranasais/cirurgia , Sinusite/cirurgia , Cirurgia Assistida por Computador/métodos , Telemedicina/métodos , Adulto , Seguimentos , Humanos , Masculino , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Seios Paranasais/diagnóstico por imagem , Sensibilidade e Especificidade , Índice de Gravidade de Doença , Sinusite/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Resultado do TratamentoRESUMO
The EEGs of 30 patients with central vertigo were examined by caloric vestibular stimulation (CVS). The control group consisted of 30 persons without vertigo disturbances. In the standard procedure (and after hyperventilation), there was no statistically significant difference between the two groups of patients. In comparison to the EEGs of healthy persons, CVS produced statistically significant differences ( P<0.001) in the EEGs of patients with vertigo.
