Specifications
MNPS
Features
MNPS results from a 22-year-development of stereotactic procedure planning techniques based on personal computers and neuroimages [1]. It began in 1990 with the name NSPS, and from 1994 to 2003 was distributed with the name of MSPS.
All techniques are tridimensional (3D) and based on the parametrization of each tomographic, magnetic resonance and stereotactic angiography section plane.
In order to ease functional surgery procedure planning, two stereotactic atlases (Schaltenbrand-Wahren and Talairach) were digitalized to vectorial shape and various resources incorporated to achieve the maps overlay over reformatted stereo-tomographies slices. Many parameters guarantee control over the atlas space orientation in relation to the patient's brain, being the anterior and the posterior commissure essential to that.
In order to include magnetic resonance to the plan, lowering the impact of its geometric distortion, a multimode image fusion technique was created. This method considers stereo-tomography space as a rigid volume and allows a slight plasticity in resonance volume (with control over the módulo de rigidez). The algorythm is of 3D domain, semi-automatic, not being critical in case of superposition of partial volumes, and is stable when applied in images with artifacts and retrospective studies.
There are no principle limitations in mutual orientation of tomography and resonance cuts to be fused.[2]
The incorporation of such methods raises the safety of procedures, lowers their invasion and reduces surgical time.
Another MNPS resource is the module for Radiosurgery planning.
The MNPS System can be configured for different models of Stereotaxis and Radiosurgery equipments
[1] - "A Stereotactic Surgical Planning System for the IBM 386/486 PC Family", A. Alaminos, I. Ortega, H. Molina, P. Valladares. Stereotac Funct Neurosurg 1994; 63.
[2] – "Desenvolvimento de uma técnica para fusão de imagens como complemento ao planejamento cirúrgico em condições estereotáxicas", Armando Lázaro Alaminos Bouza, Tesis presentada a la Universidade Federal de São Paulo – Escola Paulista de Medicina – para la obtención del título de Master en Neurociencias. 1999.
Download: Evolution of the System
| File | Info |
Manual_MNPS_Portugues_2012.pdf |
Size: 2,2M |
| Version History |  |
| Version 10.20 • Magnifying Lense : Press the key + to open a magnifying lense. While using the magnifying lense no other function is available. Use mouse wheel to modify magnification. Use a mouse Click to close the magnification lense. The lense is available in the planning window, in 3D window and in mosaic window. • Fusion Lense: On the keyboard press <SHIFT-F5> to open the fusion lense. The fusion lense presents a square area with pixels from the floating or reference image. The fusion lense can be used only when fusion is active. • Faster image registration with Mutual Information Maximization. • MNPS now needs a CPU with SSE3 capabilities. • When the POIs AC, PC and IHP are defined MNPS shows the position of the cursor relative to a comissural coordinate system with origem in the inter-comissural point. This tool is active only for systems with the functional module. • The path definition in MNPS.INI now allows relative path. For example, instead of using IMAGE=c:\mnps\image use IMAGE=image . This extension helps if you need to install MNPS in a directory (folder) with different name, such as c:\MNPS_FiMe\ . If you use relative path the MNPS.INI do not need modification after a change in the name of the instalation folder. • Buttom to toggle between floating or reference image in the reconstructed image window. A small square at the top left corner of the reconstructed image window. • MNPS use larger screen area in high resolution modes. On the other hand is better adapted to very low resolution screens such as those of netbooks. If a low resolution is found some numeric information goes to the window caption of MNPS. |
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