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Work experience

May 2006Present

Managing Director

California Institute of Computer Assisted Surgery - CICAS Inc.

California Institute of Computer-Assisted Surgery (CICAS) was founded by Ramin Shahidi in 2005, as a non-profit organization, where he has been working as its full time managing director, while maintaining his academic position at StanfordUniversity. Since 2005, Shahidi’s research efforts and his IP at Stanford have been transitioned to this private research center in an effort to facilitate the transfer of technology from Stanford to the industry. CICAS’s Mission is to bridge the gap between biomedical sciences and industrial models, in hopes of developing novel ideas, which, in turn, would directly result in advances in health care. 

Jul 19962010

Professor of Surgery

Stanford University

9/06 - 9/10     Associate Professor of Surgery, StanfordUniversitySchool of Medicine

9/00 - 9/10    Courtesy Professor of Electrical EngineeringStanfordUniversity

9/00 - 9/10     Affiliated Professor of Bio-Design, Biomedical Engineering, StanfordUniversity

7/96 - 9/06Director, Image Guidance Labs, StanfordUniversitySchool of Medicine

7/96 - 9/05    Assistant Professor of Neurosurgery, StanfordUniversitySchool of Medicine

9/00 - 9/06Assistant Professor of Surgery, StanfordUniversitySchool of Medicine

Recruited to establish and direct the Image Guidance Laboratories (IGL) for the Neurosurgery Department (and later Surgery and Electrical Engineering) at Stanford University School of Medicine. Since then research efforts focused toward developing a software infrastructure for fast volumetric image rendering for surgical planning and navigation, from which many other novel projects (such as Volumetric Image Enhanced Endoscopy and Microscopy) have spun off. Using such techniques, the surgeon visualizes the surgical site, while exploring the inner layers of the patient anatomy - not visible by the surgeon - from the volumetrically reconstructed images acquired from either MRI or CT. This project (the first of its kind) was licensed by Stanford in 1999 to CBYON, Inc. Today, IGL has been recognized as one of the centers of excellence in the country in the field of surgical planning and navigation with over 100 peer-reviewed articles published. Current research projects at IGL include 3D ultrasonic image guidance for soft tissue biopsies and intraoperative image fusion for surgical navigation.

Feb 1999Jan 2004

CTO, VP of Product Design


2/01 - 2/03CTO and VP Product Design, CBYON, Inc., Palo Alto, CA

2/99 - 2/03Director and Chair, Clinical Advisory Board, CBYON, Inc., Palo Alto, CA

Scientific Founder, Director, and Chief of Clinical Advisory Board, later Chief Technical Officer and Vice President of Product Design for this $30MM venture-backed startup developer and manufacturer of CBYON Suite, anFDA-cleared advanced surgical visualization and navigation system sold commercially and used successfully in over 5000 complex cases in over 40 locations internationally. The system’s advanced protocol-based user interface facilitates the effective utilization of 3D images during surgery with minimal user input. CBYON “Doctor Station”, a volumetric visualization software with analysis and patient reporting capabilities, was also introduced by the company for 3D diagnostic and surgical planning applications. Responsible for all aspects of CBYON’s imaging protocols, hardware design and software design (from features, to workflow and user interface, and inventor of 12 of 14 US patentslicensed exclusively from StanfordUniversity. CBYON was sold privately to General Electric in January of 2004.

May 1995Jul 1996

Imaging Scientist, Manager of Clinical Programs

Vital Images - Vital Inc.

2/96 - 7/96Program Manager Vital Images Inc., Plymouth, MN

2/95 - 2/96Imaging Scientist, Vital Images Inc., Plymouth, MN

Upon completion of doctorate research, joined this leading developer of 3D diagnostic radiology and surgical planning software. Principally responsible for designing new 3D imaging protocols and clinical applications in collaboration with leading radiologists at Duke University, StanfordUniversity, and the Hospitals of University of Pennsylvania (HUP). The 3-D imaging protocols included the entire workflow from acquisition to specific rendering parameters for volumetric diagnosis and treatment planning. Also an early key contributor to the design of Vitrea, Vital Images’ product for 3D Radiology, which has been the best selling imaging software during the last decade.




University of Medicine and Dentistry of New Jersey


Rutgers University


University of Medicine and Dentistry of New Jersey


Rutgers University


Boston University


  Issued Dec’00     # 6,167,296 Method and Apparatus for Volumetric Image Navigation Issued Aug’02     # 6,442,417 Method and Apparatus for Transforming View Orientation Issued Mar’02      # 6,511,418 Apparatus and Method for Calibrating an Endoscope Issued Mar’03      # 6,529,758 Method and Apparatus for Volumetric Image Navigation Issued Sep’03     # 6,591,130 Method of Image-Enhanced Endoscopy at the Patient Site Issued Dec’03     # 6,674,883 Virtual Fluoroscopic System and Method Issued Aug’04     # 6,782,287 Method for tracking a med. instrument based on image registration issued Feb'05     # 6,850,794 Endoscopic Targeting Method and System issued Nov,10     # 7,844,320 Method and Apparatus for Volumetric Image Navigation issued Feb'12     # 8,116,848 Method and Apparatus for volumetric Image Navigation    
Scientific Membership:
    Since 2007          Board of Directors, International Foundation of Computer Aided Radiology & Surgery (IFCARS) Since 2002          Board of Directors, International Society of Computer Assisted Surgery (ISCAS) Since 2005          Deputy Editor, International Journal of Computer Assisted Radiology and Surgery (JCARS) Since 2008          Editorial Board, JVIR Journal of Vascular and Interventional Radiology (JVIR) Since 1996          Editorial Board, Journal of Computer Assisted Surgery (JCAS) Since 2000          Organizing Committee, Computer Aided Radiology and Surgery (CARS) Since 1997          Organizing Committee, Medicine Meets Virtual Reality Conferences (MMVR) Since 2001          Reviewing Committee - ad-hoc, National Science Foundation (ERC) Since 2000          Reviewing Committee - ad-hoc, National Institute of Health (NCI, NLHI and CSR) Since 1999          Reviewing Committee, Med. Img. Comp. & Comp. Asst. Interventions (MICCAI)  


Medical Imaging,Computer Assisted Surgery,Image Guided Surgery,Medical Imaging Software Interface Design,Volumetric Medical Imaging,Minimally Invasive Surgical InstrumentationSurgical Planning

Surgical Robotics

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Image Portfolio


Selected publications:(from over 100 invited papers, book chapter, proceedings, and journals)

- Bax M, Shahidi R, "Real-time lens distortion correction:speed, accuracy and efficiency," Journal of Optical Engineering, SPIE, Accepted for publication, 2013. 

·  Hummel J, Figl M, , Bax MR, Shahidi R, Bergmann H, Birkfellner W "Evaluation of dynamic electromagnetic tracking deviation."  Proc. SPIE Medical Imaging; Visualization, Image-Guided Procedures, and Modeling, 72612U (March 13, 2009); doi:10.1117/12.813645

·Rosal SK, Shahidi R, The Virtual Operative Field, how image Guidance can become integral to microneurosurgery, in "Samii's Essentials in Neurosurgery" Springer 2009

·Gharabaghi A, Rosahl SK, Feigl GC, Safavi-Abbasi S, Mirzayan JM, Heckl S, Shahidi R, Tatagiba M, Samii M "Image-guided lateral suboccipital approach: part 2-impact on complication rates and operation times." Neurosurgery 2008; 62: 3 Suppl 1: 24-9; discussion 29

·Gharabaghi A, Rosahl SK, Feigl GC, Liebig T, Mirzayan JM, Heckl S, Shahidi R, Tatagiba M, Samii M "Image-guided lateral suboccipital approach: part 1-individualized landmarks for surgical planning." Neurosurgery 2008; 62: 3 Suppl 1: 18-22; discussion 22-3

·Gharabaghi A, Rosahl SK, Feigl GC, Samii A, Liebig T, Heckl S, Mirzayan JM, Safavi-Abbasi S, Koerbel A, Löwenheim H, Nägele T, Shahidi R, Samii M, Tatagiba M "Surgical planning for retrosigmoid craniotomies improved by 3D computed tomography venography." Eur J Surg Oncol 2007;

·Rosahl SK, Gharabaghi A, Hubbe U, Shahidi R, Samii M "Virtual reality augmentation in skull base surgery." Skull Base 2006; 16: 2: 59-66

·Hummel J, Figl M, Birkfellner W, Bax MR, Shahidi R, Maurer CR, Bergmann H "Evaluation of a new electromagnetic tracking system using a standardized assessment protocol." Phys Med Biol 2006; 51: 10: N205-10

·Hummel JB, MR, Figl ML, Maurer C, Birkfellner WW, Bergmann H, Kang Yan, Shahidi R "Design and Application of a Standardized Assessment Protocol for Electromagnetic Tracking Systems" Medical Physics 2005; Accepted:

·Hummel JB, Bax MR, Figl ML, Kang Y, Maurer C, Birkfellner WW, Bergmann H, Shahidi R "Design and application of an assessment protocol for electromagnetic tracking systems." Med Phys 2005; 32: 7: 2371-9

·Russakoff DB, Rohlfing T, Shahidi R, Adler Jr JR, "Intensity-based 2D-3D image registration incorporating a single fiducial marker" Academic Radiology 2005; Accepted:

·Gharabaghi A, Hellwig D, Rosahl SK, Shahidi R, Schrader C, Freund HJ, Samii M "Volumetric image guidance for motor cortex stimulation: integration of three-dimensional cortical anatomy and functional imaging." Neurosurgery 2005; 57: 1 Suppl: 114-20; discussion 114-20

·Russakoff DB, Rohlfing T, Shahidi R, Kim D, Adler J "Intensity based 2D-3D spine registration incorporating one fiducial marker" Medical Image Computing and Computer-Assisted Intervention 2003; 287-294

·Bax MR, Khadem R, Johnson JA, Wilkinson EP, Shahidi R "Calibration and accuracy testing for image-enhanced endoscopy." Stud Health Technol Inform 2002; 85: 52-6

·Jannin P, Fitzpatrick JM, Hawkes DJ, Pennec X, Shahidi R, Vannier MW "Validation of medical image processing in image-guided therapy." IEEE Trans Med Imaging 2002; 21: 12: 1445-9

·Shahidi R, Bax MR, Maurer CR, Johnson JA, Wilkinson EP, Wang B, West JB, Citardi MJ, Manwaring KH, Khadem R "Implementation, calibration and accuracy testing of an image-enhanced endoscopy system." IEEE Trans Med Imaging 2002; 21: 12: 1524-35

·Hariri S, Abbasi HR, Chin S, Steinberg G, Shahidi R "Quantification of the gravity-dependent change in the C-arm image center for image compensation in fluoroscopic spinal neuronavigation." Stud Health Technol Inform 2001; 81: 177-9

·Abbasi HR, Grzeszczuk R, Chin S, Fahrig R, Holz H, Hariri S, Kim D, Adler J, Shahidi R "Clinical fluoroscopic fiducial-based registration of the vertebral body in spinal neuronavigation." Stud Health Technol Inform 2001; 81: 1-7

·Shahidi R, Clarke L, Bucholz RD, Fuchs H, Kikinis R, Robb RA, Vannier MW "White paper: challenges and opportunities in computer-assisted interventions January 2001." Comput Aided Surg 2001; 6: 3: 176-81

·Abbasi HR, Hariri S, Martin D, Shahidi R "A comparative statistical analysis of neuronavigation systems in a clinical setting." Stud Health Technol Inform 2001; 81: 11-7

·Shahidi R, "Introduction" Comput Aided Surg 2000; 5: 2: 81

·Khadem R, Yeh CC, Sadeghi-Tehrani M, Bax MR, Johnson JA, Welch JN, Wilkinson EP, Shahidi R "Comparative tracking error analysis of five different optical tracking systems." Comput Aided Surg 2000; 5: 2: 98-107

·Wilkinson EP, Shahidi R, Wang B, Martin DP, Adler JR, Steinberg GK "Remote-rendered 3D CT angiography (3DCTA) as an intraoperative aid in cerebrovascular neurosurgery." Comput Aided Surg 1999; 4: 5: 256-63

·Shahidi R, Tombropoulos R, Grzeszczuk R "Clinical Applications of Three-Dimensional Rendering of Medical Data-Sets" Journal of “Proceedings of IEEE 1998; 86: 3: 555-568

·Shahidi R, Wang B, Epitaux M, Adler J, Grzeszczuk R "Volumetric Image Navigation through Stereotactic Endoscopes" Medical Image Computing and Computer-Assisted Intervention (MICCAI) 1998; 241-252

·Shahidi R, Argiro V, Napel S, Gray L, McAdams P, Rubin G, Beaulieu C, Jeffrey B, Johnson A "Several Virtual Endoscopy Techniques using CT and Perspective Volume Rendering" Visualization in BioMedical Computing (VBC) 1996; 521-528

·Shahidi R, Mezrich R, Silver D "Proposed simulation of volumetric image navigation using a surgical microscope." J Image Guid Surg 1995; 1: 5: 249-65

·Mezrich R, Negin S, Shahidi R, Taylor H, Knight S "Functional Segmentation for Breast Display" Journal of Magnetic Resonance 1993;

Invited Lectures(6 out of over 120 invited lectures and scientific presentations)

Shahidi R (Keynote Speaker), “Evolution of Interactive 3-D Image-Based Surgical Visualization”,World

Congress on Medical Physics and Biomedical Engineering, SeoulKorea, Aug 2006

Shahidi R: “Volumetric Surgical Navigation via Stereotactic Endoscopy”, Intl. Seminars in Neurosurgery,

International Neuroscience Institute, HanoverGermany, June 2003

Shahidi R: “Integration of Volumetric Surgical Navigation Systems”, Seminars in Biomedical Imaging, Mayo Clinic, Rochester, MN, February 2003

Shahidi R: “Validation of Volumetric Surgical Navigation Systems”, Image Guided InterventionsNational Institute of Health, NCI-NIBIB and NSF, Bethesda, Maryland, Sep 2002

Shahidi R: (Keynote Speaker), "Challenges and Opportunities in Computer Assisted Surgery", International Conference on Mechatronics, Linz, Austria, July 2002

Shahidi R: (Endnote Speaker) “The next step in Computer Assisted Therapy,”CARS-ISCAS-2000International Congress of Computer Assisted Radiology and Surgery, San Francisco, CA, June 2000

In News: (6 out of 35 media reports)

CBS-TV: News at 11:“Technology by Sue Kwon, Separation of Egyptian Twins”, October 21, 2003

Wired Magazine: “Til’ Death Do US Apart, Separation of Iranian Twins”, October 2003

Tech-TV, “National Medical Technology Coverage, UCLA Twins”, September 23-30, 2002

MIT Technology Review, “Review Surgeons see into their patients”, May 25, 2001

ABC News, “Technology Update – Transparent Patients”, February 18 2001

PBS, American Medical Review, “Frontiers in Medical Technology”,November 2000


Aug 1991Present

Fellowship Award

Sep 1988Present

Scholars Award


World's Top 100 People In Medical Imaging

Health Imaging

Medical Design Excellence Award

Feb 2014Present

19th Satava Award - Medicine Meets Virtual Reality

National Museum of Medicine and Health