Automated alignment of MRI brain scan by anatomic landmarks

Li Zhang; Qing Xu; Chong Chen; Carol L. Novak

doi:10.1117/12.812236

27 March 2009 Automated alignment of MRI brain scan by anatomic landmarks

Li Zhang, Qing Xu, Chong Chen, Carol L. Novak

Proceedings Volume 7259, Medical Imaging 2009: Image Processing; 72592M (2009) https://doi.org/10.1117/12.812236
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

We present a method to automate acquisition of MR brain scans to allow consistent alignment of diagnostic images for patient follow-up, and to depict standardized anatomy for all patients. The algorithm takes as input a low-resolution acquisition that depicts the patient position within the scanner. The mid-sagittal plane dividing the brain hemispheres is automatically detected, as are bony landmarks at the front and back of the skull. The orientation and position of a subsequent diagnostic, high resolution scan is then aligned based on these landmarks. The method was tested on 91 data sets, and was completely successful in 93.4% of cases, performed acceptably in 4.4% of cases, and failed for 1.1%. We conclude that the method is suitable for clinical use and should prove valuable for improving consistency of acquisitions.

Citation Download Citation

Li Zhang, Qing Xu, Chong Chen, and Carol L. Novak "Automated alignment of MRI brain scan by anatomic landmarks", Proc. SPIE 7259, Medical Imaging 2009: Image Processing, 72592M (27 March 2009); https://doi.org/10.1117/12.812236

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