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VideoSongbai Ji
Assistant Professor of Engineering
Adjunct Assistant Professor of Surgery, Geisel School of Medicine
songbai.ji@dartmouth.edu
Education
- B.Sc. Materials Science, Shanghai Jiaotong University 1996
- M.S. Computer Science, Washington University in St. Louis 2003
- D.Sc. Mechanical Engineering, Washington University in St. Louis 2003
Research Interests
Image-guided surgery; medical imaging; multi-modality imaging; image analysis; finite element; numerical methods; image registration; traumatic brain injury; computational modeling of the human head
Current Research Projects
- Image-guided neurosurgery
- Measuring material properties of the human brain in vivo
- Traumatic brain injury in college athletes
Selected Publications
- S. Ji, X. Fan, A. Hartov, D.W. Roberts, and K.D. Paulsen, "Estimation of intraoperative brain deformation," in Studies in Mechanobiology, Tissue Engineering and Biomaterials, Volume 11, 97-133, Y. Payan (Ed.), Springer-Verlag Berlin Heidelberg, (2012) [DOI: 10.1007/8415_2012_129]
- T.W. McAllister, J.C. Ford, S. Ji, J.G. Beckwith, L.A. Flashman, K.D. Paulsen, R.M. Greenwald, "Maximum principal strain and strain rate associated with concussion diagnosis correlates with changes in corpus callosum white matter indices," Annals of Biomedical Engineering, 40(1):127-40, (2011) [DOI: 10.1007/s10439-011-0402-6]
- S. Ji, X. Fan, D.W. Roberts, K.D. Paulsen, "Cortical surface strain estimation using stereovision," G. Fichtinger, A. Martel, and T. Peters (Eds.): MICCAI 2011, Part I, LNCS 6891, pp. 412-419, (2011)
- S. Ji, J.C. Ford, R.M. Greenwald, J.G. Beckwith, K.D. Paulsen, L.A. Flashman, T.W. McAllister, "Automated subject-specific, hexahedral mesh generation via image registration," Finite Elements in Analysis and Design, 47:1178-1185, (2011) [DOI: 10.1016/j.finel.2011.05.007].
- S. Ji, A. Hartov, D.W. Roberts, and K.D. Paulsen, "Data assimilation using a gradient descent method for estimation of intraoperative brain deformation," Medical Image Analysis, 13(5), 744-756, (2009) http://dx.doi.org/10.1016/j.media.2009.07.002
- S. Ji, D.W. Roberts, A. Hartov, and K.D. Paulsen, "Brain-skull contact boundary condition in an inverse computational model," Medical Image Analysis, 13(4), 659-672, (2009) http://dx.doi.org/10.1016/j.media.2009.05.007
- S. Ji, D.W. Roberts, A. Hartov, and K.D. Paulsen, "Combining multiple volumetric true 3D ultrasound volumes through re-registration and rasterization," G.-Z. Yang et al. (Eds.): MICCAI 2009, Part I, LNCS 5761, pp. 795-802 (2009)
- S. Ji, Z. Wu, A. Hartov, D.W. Roberts, and K.D. Paulsen, "Mutual-information-based patient registration using intraoperative ultrasound in image-guided neurosurgery," Medical Physics, 35(10), 4612-4624, (2008)
Selected Patents
- U.S. Patent Application No. 20120215093 (pending): System and method for providing patient registration without fiducials (Co-inventors: K.D. Paulsen, D.W. Roberts, and A. Hartov)
- U.S. Patent Application (filed Nov, 2010):System and Method for Registering Ultrasound And Magnetic Resonance Images (Co-inventors: K.D. Paulsen, D.W. Roberts and A. Hartov)
- U.S. Patent Application (filed Feb, 2011): System and Method for Providing Registration Between Breast Shapes Before and During Surgery (Co-inventors: R.J. Barth Jr., M.J. Pallone, and K.D. Paulsen)
- U.S. Patent Application (filed Sept, 2011): Apparatus for measuring in-vivo mechanical properties of biological tissues (Co-inventors: K.D. Paulsen and D.W. Roberts)
- U.S. Patent Application (filed Jan, 2012): Method and apparatus for calibration of stereo-optical three-dimensional surface-mapping system (Co-inventors: X. Fan, K.D. Paulsen, D.W. Roberts, and A. Hartov)
- U.S. Patent Application (filed Jan, 2012): Use of stereovision for soft tissue deformation compensation (Co-inventors: X. Fan, K.D. Paulsen, D.W. Roberts, and A. Hartov)
News
Simbex extends partnership with Dartmouth Medical School, Thayer School on concussion research
Simbex
September 15, 2011Intel Teams Up with Leading Researchers to Make Football Helmets Safer
Intel
November 15, 2010
In Dartmouth Engineer Magazine
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Kudos
Winter 2012 -
Lab Report: Modeling the Impact of Brain Damage
Summer 2011 -
Faculty News: New Profs Arrive
Winter 2009
Post-Doctoral Associate in Brain Biomechanics
A post-doctoral associate position funded by the NIH is available at the Thayer School of Engineering, Dartmouth College. This position will support research in in vivo biomechanics of the human brain using stereovision, image-analysis, and finite element modeling. Applicants are expected to have an earned Ph.D. degree in mechanical engineering or biomedical engineering, or a closely related field. Experience with MATLAB, image analysis, and finite element modeling (e.g., Abaqus) is essential. This position will involve working with a team of biomechanical researchers and clinicians to analyze stereoscopic images of exposed brain surfaces from patients undergoing open-skull neurosurgery. The post-doc associate will also be expected to participate in preparing research articles, presenting research findings at conference meetings, and contributing to grants. Therefore, excellent writing and communication skills are important.
Dartmouth College is an Ivy League institution. Our lab works closely with researchers in the Advanced Imaging Center and Advanced Surgical Center, Dartmouth-Hitchcock Medical Center, as well as with other faculty in the engineering school and school of medicine.
Interested applicants please send a cover letter, CV, and a list of 3 professional references to Songbai.Ji@Dartmouth.edu. This position will remain open until filled.
Qualifications: A Ph.D. in mechanical engineering or biomedical engineering, or a closely related field, with experience with MATLAB, image-analysis, and finite element modeling.
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