Journal
IEEE TRANSACTIONS ON MEDICAL IMAGING
Volume 19, Issue 3, Pages 186-202Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/42.845177
Keywords
image processing; motion estimation; MR tagging; MRI
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Funding
- NATIONAL HEART, LUNG, AND BLOOD INSTITUTE [Z01HL004608, R01HL047405] Funding Source: NIH RePORTER
- NHLBI NIH HHS [R01-HL47405] Funding Source: Medline
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This paper describes a new image processing technique for rapid analysis and visualization of tagged cardiac magnetic resonance (MR) images. The method is based on the use of isolated spectral peaks in spatial modulation of magnetization (SPAMM)-tagged magnetic resonance images. We call the calculated angle of the complex image corresponding to one of these peaks a harmonic phase (HARP) image and show that HARP images can be used to synthesize conventional tag lines, reconstruct displacement fields for small motions, and calculate two-dimensional (2-D) strain, The performance of this new approach is demonstrated using both real and simulated tagged MR images, Potential for use of HARP images in fast imaging techniques and three-dimensional (3-D) analyses are discussed.
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