Name
Abstract | ||
|---|---|---|
This paper presents a practical implementation of Compressive Sensing (CS) for a preclinical MRI machine to acquire randomly undersampled k-space data in cardiac function imaging applications. First, random undersampling masks were generated based on Gaussian, Cauchy, wrapped Cauchy and von Mises probability distribution functions by the inverse transform method. The best masks for undersampling ratios of 0.3, 0.4 and 0.5 were chosen for animal experimentation, and were programmed into a Bruker Avance III BioSpec 7.0T MRI system through method programming in Para Vision. Three undersampled mouse heart datasets were obtained using a fast low angle shot (FLASH) sequence, along with a control undersampled phantom dataset. ECG and respiratory gating was used to obtain high quality images. After CS reconstructions were applied to all acquired data, resulting images were quantitatively analyzed using the performance metrics of reconstruction error and Structural Similarity Index (SSIM). The comparative analysis indicated that CS reconstructed images from MRI machine undersampled data were indeed comparable to CS reconstructed images from retrospective undersampled data, and that CS techniques are practical in a preclinical setting. The implementation achieved 2 to 4 times acceleration for image acquisition and satisfactory quality of image reconstruction. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1117/12.2043968 | Proceedings of SPIE |
Keywords | Field | DocType |
MRI,compressive sensing,random undersampling,reconstruction,reconstruction error,structural similarity index,mouse heart | Iterative reconstruction,Computer vision,Computer science,Imaging phantom,Undersampling,Cauchy distribution,Cardiac imaging,Artificial intelligence,Image restoration,Inverse transform sampling,Compressed sensing | Conference |
Volume | ISSN | Citations |
9034 | 0277-786X | 0 |
PageRank | References | Authors |
0.34 | 1 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| elliot tan | 1 | 0 | 0.34 |
| ming yang | 2 | 0 | 1.01 |
| lixin ma | 3 | 0 | 1.01 |
| Yahong Rosa Zheng | 4 | 885 | 76.15 |