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CC BY-NC-ND 4.0 · Asian J Neurosurg 2019; 14(03): 762-766
DOI: 10.4103/ajns.AJNS_63_19
Original Article

The use of osirix for surgical planning using cranial measures and region of interest tools: Technical note

Renan Lovato
1   Department of Surgery, Division of Neurosurgery, Santa Casa De São Paulo School of Medical Sciences, São Paulo
2   Department of Neurosurgery, Londrina State University, Londrina
,
Joao Araujo
1   Department of Surgery, Division of Neurosurgery, Santa Casa De São Paulo School of Medical Sciences, São Paulo
3   Department of Neurosurgery, Hospital Sirio Libanes
4   Department of Neurosurgery, Hospital Albert Einsten, São Paulo
,
Aline Paiva
1   Department of Surgery, Division of Neurosurgery, Santa Casa De São Paulo School of Medical Sciences, São Paulo
5   Department of Neurosurgery, Hospital Do Coração, São Paulo
,
Francisco Pesente
2   Department of Neurosurgery, Londrina State University, Londrina
,
Cumhur Yaltirik
6   Department of Neurosurgery, Yeditepe University School of Medicine, Istanbul
,
Mehmet Harput
6   Department of Neurosurgery, Yeditepe University School of Medicine, Istanbul
,
José Esteves Veiga
1   Department of Surgery, Division of Neurosurgery, Santa Casa De São Paulo School of Medical Sciences, São Paulo
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Background: During the surgery for intrinsic brain lesions, it is important to plan the proper site of the craniotomy and to identify the relations with the gyri and superficial veins. This might be a challenge, especially in small subcortical lesions and when there is a distortion of the cortical anatomy. Materials and Methods: Using the free computer software Osirix, we have created a 3-dimensional reconstruction of the head and cerebral showing the gyri and superficial veins. With the aid of some tools, it is possible to create a colored image of the lesion and also to calculate the distance between the areas of interest and some easily identifiable structure, making it easier to plan the site of the craniotomy identify the topography of the lesion. Results: The reconstructions were compared to the intraoperative view. We found this technique to be useful to help identify the gyri and cortical veins and use them to find the lesions. The use of a region of interest to show better the lesion under the cortical surface and in the three-dimensional reconstruction of the head was also helpful. Conclusions: This is a low-cost and easy technique that can be quickly learned and performed before every surgery. It helps the surgeon to plan a safe craniotomy and lesionectomy.

Key-words:

Gyrus - medical topography - neuroanatomy - sulcus - surgical procedure

Financial support and sponsorship

Nil.




Publication History

Article published online:
09 September 2022

© 2019. Asian Congress of Neurological Surgeons. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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