Nathanial Witte, Abstract Co-Author: Nothing to Disclose

Laurence J. Eckel MD, Presenter: Nothing to Disclose

Jeffrey Park, Abstract Co-Author: Nothing to Disclose

Kiaran Patrick McGee PhD, Abstract Co-Author: Nothing to Disclose

Debra Brinkmann PhD, Abstract Co-Author: Nothing to Disclose

Erik Tryggestad PhD, Abstract Co-Author: Nothing to Disclose

Jane Sexton Matsumoto MD, Abstract Co-Author: Nothing to Disclose

Jonathan Michael Morris MD, Abstract Co-Author: Nothing to Disclose

Michelle Clarke MD, Abstract Co-Author: Nothing to Disclose

Robert James Witte MD, Abstract Co-Author: Nothing to Disclose

1. 3D printing technologies can provide accurate representation of complex anatomical structures. 2. 3D models allow patient specific visualization of susceptibility induced artifacts on MR imaging resulting from implanted surgical spine hardware. 3. 3D models with implanted hardware allow optimization of MR imaging sequences with specific reference to anatomic targets used in radiation therapy planning. 4. Models provide improved visualization of organs at risk and radiation treatment planning volumes. 

Clinical Problem: 1. Tumor and spinal cord are not reliably or accurately imaged compromising radiation treatment planning quality. 2. Conventional methods for optimization of MR imaging sequences in the presence of susceptibility induced artifacts. Methods: 1. Insertion of surgical hardware into 3D spine model. 2. MR imaging protocol optimization: 3T and 1.5T. Results: 1. Phantom construction and hardware placement. 2. MR imaging: pre and post sequence optimization. 3. Gel phantom versus anatomic model MR imaging. Conclusions / Findings: 1. 3D anatomic models with surgical metal implants allows patient specific optimization of MR imaging parameters facilitating improved visualization of critical structures necessary for accurate radiation therapy planning.

http://abstract.rsna.org/uploads/2014/14019396/14019396_b6pi.pdf

Witte, N, Eckel, L, Park, J, McGee, K, Brinkmann, D, Tryggestad, E, Matsumoto, J, Morris, J, Clarke, M, Witte, R, Anatomically Accurate 3D Printed Phantoms for Optimization of MR Spine Image Quality in the Presence of Implanted Surgical Hardware for Radiation Therapy Planning.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14019396.html