OsiriX software as a preoperative planning tool in cranial neurosurgery: A step-by-step guide for neurosurgical residents

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.

show abstract

“…Therefore, the surgeon can project the borders of the tumor into the skin and mark these borders. [13]…”

Section: Discussionmentioning

confidence: 99%

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

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Each electrode was labeled and registered to the MRI. Images were imported into the Osirix® environment [30] , [31] . Tailairach landmarks were chosen to correspond to the anterior and posterior commissures in the midline.…”

Section: Methodsmentioning

confidence: 99%

Repetitive transcranial magnetic stimulation directed to a seizure focus localized by high-density EEG: A case report

Fisher

Zhou

Fogarty

et al. 2018

Epilepsy & Behavior Case Reports

View full text Add to dashboard Cite

We demonstrate feasibility of using high-density EEG to map a neocortical seizure focus in conjunction with delivery of magnetic therapy. Our patient had refractory seizures affecting the left leg. A five-day course of placebo stimulation followed a month later by active rTMS was directed to the mapped seizure dipole. Active rTMS resulted in reduced EEG spiking, and shortening of seizure duration compared to placebo. Seizure frequency, however, improved similarly in both placebo and active treatment stages. rTMS-evoked EEG potentials demonstrated that a negative peak at 40 ms - believed to represent GABAergic inhibition - was enhanced by stimulation.

show abstract

“…Horos is an open-source version of OsiriX (Pixmeo, Switzerland), a Mac-based software, which allows processing of three-dimensional datasets. [1112] It is freely available under GNU lesser general public license, version 3. [13] The advantage of the software package is that it permits multiplanar and three-dimensional reconstruction of cardiac anatomy.…”

Section: Virtual Cardiac Dissection Using a Personal Computermentioning

confidence: 99%

A new low-cost method of virtual cardiac dissection of computed tomographic datasets

2019

View full text Add to dashboard Cite

Computed tomography has an established role in the evaluation of a variety of cardiac disorders, including congenital heart diseases. The current generation of high-speed scanners produces volumetric data at low doses of radiation. The interpretation of cardiac anatomy, however, is generally limited to multiplanar assessment of two-dimensional images. The volume rendering technique provides an excellent three-dimensional demonstration of external morphology but offers little information about the intracardiac anatomy. The alternative approach of virtual cardiac dissection, which is a modification of volume rendering, on the other hand, provides crucial insights regarding the intracardiac anatomy. At present, virtual cardiac dissection requires expensive software packages. These software packages are not available in all countries, thus limiting its use in routine clinical care. We present here the details of a newly developed technique that permits virtual cardiac dissection using a personal computer and open-source software. Our technique involves no additional cost and can be achieved in the comfort of the office or operating room of the cardiologist, radiologist, or cardiac surgeon. This enhanced three-dimensional visualization of intracardiac anatomy will surely improve the understanding of the morphological details of both normal and malformed hearts. In addition, by permitting assessment in projections with which modern-day cardiologists and cardiac surgeons are conversant, it is likely to improve clinical decision-making. We illustrate here its potential utility in the morphologic assessment of the atrial septum and its deficiencies, along with malformations of the ventricular outflow tracts, including common arterial trunk.

show abstract

OsiriX software as a preoperative planning tool in cranial neurosurgery: A step-by-step guide for neurosurgical residents

Cited by 26 publications

References 26 publications

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

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

Repetitive transcranial magnetic stimulation directed to a seizure focus localized by high-density EEG: A case report

A new low-cost method of virtual cardiac dissection of computed tomographic datasets

Contact Info

Product

Resources

About