Influence of distance transform on classification based segmentation of abdominal organs from MRI

Selvi, E.; Ozdemir, Merve Erkinay; Selver, M. Alper

doi:10.1109/siu.2013.6531509

Cited by 1 publication

(1 citation statement)

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“…Such methods create iso-surfaces in various cells, whereas surface based approaches enable the definition of iso-contours/polygon contour marking in each slice and then create the iso-surface from these contours; see Bajaj et al (1995). Several solutions exist for hand tuning transfer functions to improve expected volume rendering results, such as (Selver et al, 2013), however it is not clear how much user intervention is required to ensure that both small vascular structures and organs can be seen clearly for a surgery road-map, and visualized anatomy cannot be individually exported to other modeling applications.…”

Section: Related Workmentioning

confidence: 99%

Preoperative and Intraoperative Spatial Reasoning Support with 3D Organ and Vascular Models

Oliveira

Moyano-Cuevas

Pagador

et al. 2015

International Journal of Creative Interfaces and Computer Graphics

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Different imaging modalities (MRI/CT) are used to analyse/plan complex surgical procedures in order to minimize risks and complications. Although there are numerous computer tools for preoperative assistance (VR/AR simulators, 3D printed implants), intraoperative systems are less common, specifically for soft tissue related interventions. For this reason, this paper is focused on 3D reconstruction. The proposed reconstruction combines a surface approach for organs and a block approach for vascular networks. Layered closed surface(s) represent an organ and stacks of extruded individual contour blocks represent the vascular networks. The authors use IGSTK to show that their approach improves shape and transparency results when compared with other modelling methods and to communicate with trackers. With their method polygon contour correspondence/branching between slices is implicit/automatic, saving time; they show that traditional tiling problems become visually negligible. The authors' novel file format allows polygons segmented by other tools to be reconstructed in their contour annotation tool which uses VTK.

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Section: Related Workmentioning

confidence: 99%