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Image segmentation | IMAgo

The IMAgo module of the ISOgray suite  can be provided as an independent multimodality image segmentation system.

It supports CT, MRI, PET, SPECT, and CBCT images. It allows multimodality registration and gives the possibility to precisely identify and delineate target volumes and organs at risk with efficient features for segmentation of anatomical structures. Advanced solutions are provided for Atlas-Based automatic segmentation, 4D image processing (respiration) and adaptative radiotherapy.

  • IMAgo - Multimodality Image Registration

  • Automatic or semi-automatic registration of images from any modality, using advanced algorithms (rigid, affine, multi-affine, deformable)
  • Possibility to match anatomical and functional information within seconds, thanks to optimal use of GPU capabilites
  • Image fusion with deformable CT/CT or CT/CBCT registration for Adaptive Radiotherapy or 4D respiratory management
  • Quality assurance with specific toolkit designed to check the validity  of image registration
  • Generalized support of DICOM standard for import and export

  • IMAgo - Multimodality Image Display

  • Multimodality display and fusion supported throughout the ISOgray and ISOgray4D software
  • simultaneous management of an unlimited number of modalities
  • robust and efficient functionalities allowing, at any stage of the planning process, to instantaneously switch between CT, MRI, PET,... exams, and select the most relevant images
  • Multi-planar and 3D reconstruction display with adjustable coloured rendering possibilities
  • Window-level adjustments optimized according to the selected modality

 

  • IMAgo - Anatomical segmentation - Contouring

  • Manual, semi-automated and fullly automated contouring tools, designed to save time and decrease user's variability
  • Advanced interpolation solutions from a few number of multiplanar contours
  • Support of 4D image series, with specific tools to facilitate contouring on the various respiratory phases
  • Efficient automatic segmentation of anatomical structures
  • Atlas based solutions for automatic structure extraction and labelling
  • Tumor segmentation tools adapted to TEP modality, with treatment follow-up and therapy response assesment functionalities
  • Tools for automatic 3D expansion (including anisotropic margins) and boolean operations on structures
  • Image based contour deformation and transfer designed for CT/CT registration through respiratory phases and for CT/CBCT registration in adaptative radiotherapy
  • Automatic spinal chord contouring

In just a few mouse clicks, you position a series of points along the medullar canal on sagittal views. Within seconds, the spine is automatically identified, labelled and reconstructed in 3D. Depending on your own clinical protocols, you decide to extract only the spine or the entire medullar canal. In order to properly identify the spine in inter-vertebral spaces, the structure is modeled by a set of ellipses linked by constraints from slice to slice. The high level of robustness of this functionality ensures accuracy, reproducibility and increased productivity.
  • Automatic mammary gland contouring

After clinical examination a metallic marker is taped around the mammary gland for CT acquisition. A specifically designed algorithm uses this information combined with breast-air and mammary gland contrast to automatically extract a 3D structure representative of the target volume. The operator is only requested to determine the internal and external limits on a single slice. In both cases, the entire breast contouring is performed within seconds. This structure can be further edited by the radiation oncologist who takes the responibility of the target volume delineation. Dedicated tools are also provided for automatic tangential beams set-up. In a mouse click, you have achieved the more time-consuming part of your treatment plan.