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ITK-SNAP

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ITK-SNAP
Developer(s)University of Pennsylvania
Initial release2004
Written inC++
PlatformCross-platform
Available in?
TypeHealth Software
LicenseGNU General Public License
Websitehttp://www.itksnap.org


ITK-SNAP is an interactive software application that allows users to navigate and annotate three-dimensional medical images. The software was designed with the audience of clinical and basic science researchers in mind, and emphasis has been placed on having a user-friendly interface and maintaining a limited feature set to prevent feature creep. ITK-SNAP is most frequently used to work with magnetic resonance imaging (MRI) and computed tomography (CT) data sets. The main ways to use ITK-SNAP are

Image navigation : three orthogonal cut planes through the image volume are shown at all times. The cut planes are linked by a common cursor, so that moving the cursor in one cut plane updates the other cut planes. The cursor is moved by dragging the mouse over the cut planes, making for smooth navigation. The linked cursor also works across ITK-SNAP sessions, making it possible to navigate multimodality imaging data (e.g., two MRI scans of a subject from a single session).
Manual segmentation : ITK-SNAP provides tools for manual delineation of anatomical structures in images. Labeling can take place in all three orthogonal cut planes and results can be visualized as a three-dimensional rendering. This makes it easier to ensure that the segmentation maintains reasonable shape in 3D.
Automatic segmentation : ITK-SNAP provides automatic functionality segmentation using the level set method. This makes it possible to segment structures that appear somewhat homogeneous in medical images using very little human interaction. For example, the lateral ventricles in MRI can be segmented reliably, as can some types of tumors in CT and MRI.

ITK-SNAP is open source software distributed under the General Public License. It is written in C++ and it leverages the Insight Toolkit (ITK) library. ITK-SNAP can read and write a variety of medical image formats, including DICOM, NIfTI, and Mayo Analyze. It also offers limited support for multi-component and multi-variate imaging data.


[1][2][3] [4] [5] [6].

History

ITK-SNAP was developed by image analysis researchers at the University of Pennsylvania and University of North Carolina at Chapel Hill[7]. Development began at UNC as a series of graduate student projects in the Computer Science Department. Subsequent development was funded by the National Library of Medicine and performed at the PICSL group [1] at the Department of Radiology at the University of Pennsylvania.

Applications

A list of published applications of ITK-SNAP

References

  1. ^ Spangler, E.L. (2007). "Evaluation of internal carotid artery segmentation by InsightSNAP". Proceedings of SPIE. 6512: 65123F. doi:10.1117/12.709954. Retrieved 2007-11-08. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  2. ^ Xiao, Y. (2006). "SU-EE-A2-03: Evaluation of Auto-Segmentation Tools for the Target Definition for the Treatment of Lung Cancer". Medical Physics. 33: 1992. doi:10.1118/1.2240194. Retrieved 2007-11-08. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  3. ^ D'addario, V. (2007). "OP13. 04: Accuracy of six sonographic signs in the prenatal dignosis of spina bifida". Ultrasound in Obstetrics and Gynecology. 30 (4): 498–498. doi:10.1002/uog.4534. Retrieved 2007-11-08. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  4. ^ Rizzi, S.H. (2007). "Automating the Extraction of 3D Models from Medical Images for Virtual Reality and Haptic Simulations". Automation Science and Engineering, 2007. CASE 2007. IEEE International Conference on. pp. 152–157. {{cite conference}}: Cite has empty unknown parameter: |conferenceurl= (help); Unknown parameter |booktitle= ignored (|book-title= suggested) (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)
  5. ^ Cavidanes, L.H. (2006). "Image analysis and superimposition of 3-dimensional cone beam computed tomography models". American Journal of Orthodontics and DentoFacial Orthopedics. 129 (5): 611–618. doi:10.1016/j.ajodo.2005.12.008. Retrieved 2007-11-08. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  6. ^ Krishnan, S. (2006). "Accuracy of spatial normalization of the hippocampus: implications for fMRI research in memory disorders". Neuroimage. 31 (2): 560–571. doi:10.1016/j.neuroimage.2005.12.061. Retrieved 2007-11-08. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  7. ^ Yushkevich, P.A. (2006). "User-guided 3D active contour segmentation of anatomical structures: Significantly improved efficiency and reliability". Neuroimage. 31 (3): 1116–28. doi:10.1016/j.neuroimage.2006.01.015. Retrieved 2007-11-08. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
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