Bibliographic Details
| Title: |
Quantization error in magnetic resonance imaging. |
| Authors: |
Cadiz, Rodrigo F., Muñoz, Camila, Tejos, Cristian, Andia, Marcelo E., Uribe, Sergio, Irarrazaval, Pablo |
| Superior Title: |
Concepts in Magnetic Resonance. Part A: Bridging Education & Research; May2014, Vol. 43 Issue 3, p79-89, 11p |
| Subject Terms: |
MAGNETIC resonance imaging, SIGNAL quantization, ERROR probability, DIAGNOSTIC imaging research, NUCLEAR magnetic resonance |
| Abstract: |
ABSTRACT Due to the special nature of the acquisition domain, the quantization process of magnetic resonance imaging (MRI) data presents challenges that are not present in other medical imaging techniques. In this article, we demonstrate that the quantization error in MRI cannot be assumed to be a random variable with uniform distribution across the entire acquisition domain. Furthermore, the introduced error is not statistically independent of the input signal. On the contrary, we show that this error is correlated with the object that is being scanned, producing perceptually unpleasant artifacts in the image domain. Although the quantization error is not generally a critical issue in two-dimensional (2D) MRI acquisition, it could be in the case of 3D acquisitions and in noise estimation measurements. © 2014 Wiley Periodicals, Inc. Concepts Magn Reson Part A 43A: 79-89, 2014. [ABSTRACT FROM AUTHOR] |
|
Copyright of Concepts in Magnetic Resonance. Part A: Bridging Education & Research is the property of Hindawi Limited and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Complementary Index |
