Multiple flip angle MRA: data acquisition and post-processing

F. B. Mohamed, S. Faro, S. Vinitski, H. V. Ortega, T. Iwanaga

Research output: Contribution to journalConference articlepeer-review


We have implemented a MRA (Magnetic Resonance Angiography) data acquisition and post processing method to improve the assessment of the carotid artery bifurcation needed for correct diagnosing. Axial high resolution MRA images were acquired using 3D time-of-flight (TOF) MRA technique with multiple flip angle. Composite MRA images of these data sets with at least two different flip angles were created using MIP (maximum intensity projection) algorithm and formatted into sagittal angiographic projections. Next, color coded MRA images were created using k-NN segmentation algorithm. The resulting images demonstrated improved image quality of the carotid bifurcation. These post-processed MRA images also demonstrate significant increase in the SNR within the carotid bifurcation (p<0.05).

Original languageEnglish (US)
Pages (from-to)455-456
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Issue number1
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1995 IEEE Engineering in Medicine and Biology 17th Annual Conference and 21st Canadian Medical and Biological Engineering Conference. Part 2 (of 2) - Montreal, Can
Duration: Sep 20 1995Sep 23 1995

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics


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