Abstract
Magnetic resonance imaging (MRI) is commonly used as a medical diagnosis tool, especially for brain applications. Some limitations affecting image quality include receive field (RF) inhomogeneity and partial volume (PV) effects which arise when a voxel contains two different tissues, introducing blurring. The novel Magnetization-Prepared 2 Rapid Acquisition Gradient Echoes (MP2RAGE) provides an image robust to RF inhomogeneity. However, PV effects are still an issue for automated brain quantification. PV estimation methods have been proposed based on computing the proportion of one tissue with respect to the other using linear interpolation of pure tissue intensity means. We demonstrated that this linear model introduces bias when used with MP2RAGE and we propose two novel solutions. The PV estimation methods were tested on 4 MP2RAGE data sets.
Original language | English |
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Title of host publication | Medical Image Computing and Computer-Assisted Intervention, MICCAI 2014 - 17th International Conference, Proceedings |
Publisher | Springer-Verlag London Ltd. |
Pages | 129-136 |
Number of pages | 8 |
Volume | 8675 LNCS |
Edition | PART 3 |
ISBN (Print) | 9783319104423 |
DOIs | |
Publication status | Published - 2014 |
Event | Medical Image Computing and Computer-Assisted Intervention 2014 - Massachusetts Institute of Technology (MIT) and Harvard Medical School , Boston, United States of America Duration: 14 Sep 2014 → 18 Sep 2014 Conference number: 17th https://link.springer.com/book/10.1007/978-3-319-10404-1 (Proceedings) |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Number | PART 3 |
Volume | 8675 LNCS |
ISSN (Print) | 03029743 |
ISSN (Electronic) | 16113349 |
Conference
Conference | Medical Image Computing and Computer-Assisted Intervention 2014 |
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Abbreviated title | MICCAI 2014 |
Country/Territory | United States of America |
City | Boston |
Period | 14/09/14 → 18/09/14 |
Internet address |
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Keywords
- Bi-exponential model
- MP2RAGE
- Partial Volume Estimation