1st August 2013

Radiation treatment quality and time savings highlight Mirada Medical software at AAPM conference.

Denver, CO, August 1, 2013 – Mirada Medical Deformable Image Registration software is the highlight of multiple scientific studies being presented at the annual American Association of Physicists in Medicine (AAPM) meeting being held August 4-8 in Indianapolis, Indiana. The studies further validate the importance of deformable registration in radiotherapy planning, as well as Mirada Medical’s focus on improving the quality of radiation treatment and saving time.

Atlas based auto-contouring is the focus of the first paper, entitled “Assessment of Contour Fusion Method for Auto-Contouring of the Head and Neck CT Images” by Drs. Aymeric Larrue, Timor Kadir and Mark Gooding. The study investigates how the use of multiple atlases can improve the quality of the auto-contouring results and compares two multi-atlas contouring methods, STAPLE and Majority Voting, to a single fixed atlas method. STAPLE was found to be the best method followed closely by Majority Voting.

Another study, entitled “Pitfalls in Dose-Volume Histogram Computations,” by Drs. Frederik Kaster, Marianne Aznar and Timor Kadir, performed in collaboration with Rigshospitalet, University of Copenhagen, investigates the issues around calculating Dose Volume Histograms (DVHs), an important tool in assessing treatment plans. Different implementations for calculating DVHs can cause significant variations in the DVHs produced and this can become a source of error in clinical decision making and multi-center trials. The study found that the most important sources of variation are the resolution of the dose grid, whether to calculate on the CT or Dose grid and the method of voxel counting – e.g. whole voxel, partial voxel weighting. “

Our scientists and engineers constantly work with customers and research partners to innovate and deliver clinical advantage,” stated Hugh Bettesworth, CEO of Mirada Medical. “Atlas-based contouring can save significant time when compared to manual contouring, and it can improve consistency across users. The Dose Volume Histogram is one of the fundamental tools used in RT planning and understanding sources of variation in computation is critical to delivering the most highly optimized treatment plans”.

Mirada Medical will be demonstrating their latest Deformable Image Registration software and highlighting how cancer centers can improve quality and efficiency at their booth (#427) during the AAPM meeting. Dr. Kaster and Dr. Larrue will also be available to discuss the two papers.

For more information, please contact:

Mirada Medical

US/Worldwide: Robert Ripley

tel: (440) 591-8638

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