alexa Comparison between Linear and Reverse Linear k-Space Or
ISSN: 0974-7230

Journal of Computer Science & Systems Biology
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Research Article

Comparison between Linear and Reverse Linear k-Space Order with Partial Fourier Fractions for Modulation Transfer Function in Dynamic Contrast-Enhanced Magnetic Resonance Imaging: A Simulation Study

 
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Abstract

Objective: To assess how the modulation transfer function (MTF) was influenced by the k-space trajectory with partial Fourier fractions in dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), calculating MTF using computer simulations. Methods: Reference data for signal intensity were acquired using breast model at different concentrations and used to create a digital phantom. Frequency images were created by fast Fourier transform, divided into parts, and a new image formed by taking one part from each. The MTFs were then calculated. Three exponential curve models (slow, medium, and rapid) were created using the reference data. Results: The smaller the partial Fourier fraction used, the faster the decline in MTF. MTF declined more rapidly with the linear order than with the reverse linear order. Conclusion: The MTF was influenced by the k-space trajectory with partial Fourier fractions in DCE-MRI using computer simulations. The reverse linear order was found to be less influenced than the linear order by the partial Fourier fraction.

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