Abstract #3010

Image processing techniques used in satellite imaging can improve change detection on longitudinal MRI scans

Radhika Tibrewala^1,2,3, Daniel K Sodickson^1,2,3, Hersh Chandarana^1,2, Giuseppe Ruello⁴, and Riccardo Lattanzi^1,2,3

¹Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Grossman School of Medicine, New York, NY, United States, ²Center for Advanced Imaging Innovation and Research (CAI2R), Department of Radiology, New York University Grossman School of Medicine, New York, NY, United States, ³Vilcek Institute of Graduate Biomedical Sciences, New York University Grossman School of Medicine, New York, NY, United States, ⁴Department of Electrical Engineering and Information Technology, University of Napoli Federico II, Napoli, Italy

Synopsis

Keywords: Visualization, Tumor

Motivation: Change mapping techniques used in satellite imaging could be used for visualizing changes in longitudinal MRI.

Goal(s): To generate change maps to highlight tumor margins in longitudinal MRI scans of patients with brain metastasis.

Approach: We used the NYUMets public dataset. We adapted the VALE method used in satellite imaging to generate change saliency maps for patients with small brain metastasis by performing spatial and intensity registration over longitudinal MRI data.

Results: The change mapping technique made small tumors visually obvious, enhanced visualization of change in tumors and edema over time, and showed tumor boundaries that were not visible on T₁-post contrast images.

Impact: This work demonstrates that image processing techniques used in satellite imaging could be effectively used for tracking changes in longitudinal MRI. The proposed approach can lead to better treatment planning and patient progress monitoring due to its sensitivity to changes.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.