MRI image overlay: Application to arthrography needle insertion

Gregory S. Fischer, Anton Deguet, Csaba Csoma, Russell H. Taylor, Laura Fayad, John A. Carrino, S. James Zinreich, Gabor Fichtinger

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


Magnetic Resonance Imaging (MRI) offers great potential for planning, guiding, monitoring and controlling interventions. MR arthrography (MRAr) is the imaging gold standard for assessing small ligament and fibrocartilage injury in joints. In contemporary practice, MRAr consists of two consecutive sessions: (1) an interventional session where a needle is driven to the joint space and MR contrast is injected under fluoroscopy or CT guidance; and (2) a diagnostic MRI imaging session to visualize the distribution of contrast inside the joint space and evaluate the condition of the joint. Our approach to MRAr is to eliminate the separate radiologically guided needle insertion and contrast injection procedure by performing those tasks on conventional high-field closed MRI scanners. We propose a 2D augmented reality image overlay device to guide needle insertion procedures. This approach makes diagnostic high-field magnets available for interventions without a complex and expensive engineering entourage. In preclinical trials, needle insertions have been performed in the joints of porcine and human cadavers using MR image overlay guidance; in all cases, insertions successfully reached the joint space on the first attempt.

Original languageEnglish (US)
Pages (from-to)2-14
Number of pages13
JournalComputer Aided Surgery
Issue number1
StatePublished - Jan 2007

ASJC Scopus subject areas

  • Surgery
  • Radiology Nuclear Medicine and imaging


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