Related Experiment Video
Updated: Jan 13, 2026

High-resolution Functional Magnetic Resonance Imaging Methods for Human Midbrain
Published on: May 10, 2012
[Proposal of a Mathematical Model for Motion Blur in MRI Images]
Tatsuya Kondo1, Hiroaki Saito2, Tsutomu Kanazawa2
1Graduate School of Health Sciences, Niigata University.
Purpose:
This study aimed to propose a mathematical model to describe motion blur in hepatobiliary-phase magnetic resonance images.
Methods:
Simulated images were constructed based on the mathematical model of motion blur, and this model was then validated by comparing the simulated images with the magnetic resonance images obtained using a dynamic phantom. The mathematical model employed a convolution integral that combined the stationary-state signal distribution and the probability density distribution of the positional shifts during acquisition. The stationary signal distribution was obtained from the magnetic resonance images of a bottle phantom, and the probability density distribution was derived from sinusoidal motion mimicking respiratory movement. Both visual and quantitative evaluations were performed between the simulated images based on the mathematical model and the magnetic resonance images acquired using the dynamic phantom.
Results:
The simulated and acquired magnetic resonance images exhibited similar shapes. The difference in the lengths of the respective high-intensity regions was 0.7 mm.
Conclusion:
The proposed mathematical model effectively represents motion blur in magnetic resonance images.
More Related Videos
09:59A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
Published on: September 16, 2017
16:01An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging
Published on: September 24, 2017
Related Concept Videos
Magnetic Resonance Imaging
Curvilinear Motion: Rectangular Components
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
The Fluid Mosaic Model