| URN |
etd-0711106-165522 |
|---|
| Author |
Deng-hao Liang |
|---|
| Author's Email Address |
m933040041@student.nsysu.edu.tw |
|---|
| Statistics |
This thesis had been viewed 5564 times. Download 2918 times. |
|---|
| Department |
Computer Science and Engineering |
|---|
| Year |
2005 |
|---|
| Semester |
2 |
|---|
| Degree |
Master |
|---|
| Type of Document |
|
|---|
| Language |
zh-TW.Big5 Chinese |
|---|
| Title |
Investigation of quantitative absolute concentrations of in vivo proton magnetic resonance spectroscopy |
|---|
| Date of Defense |
2006-06-16 |
|---|
| Page Count |
55 |
|---|
| Keyword |
Partial volume effect
Proton magnetic resonance spectroscopy
Absolute quantification
|
|---|
| Abstract |
Magnetic resonance spectroscopy has been widely used in medical applications, rendering precise evaluation and diagnosis in clinics. As the development of various tools for automatic spectra analysis, providing objective quantification of metabolites, absolute concentrations has been playing an important role in clinical studies and applications as well.
In this study, we investigate the reliability and accuracy of absolute concentration quantified by LCModel. Ten healthy subjects were included. We compared the resultant concentrations calculated by internal water scaling and phantom calibration, both of which are provided by LCModel. Partial volume effect was also taken into account to improve the accuracy of absolute concentrations. Automatic segmentation was applied to volume of interest in order to separate gray matter and white matter, which will facilitate the further partial volume correction and thus better accuracy of absolute quantification. |
|---|
| Advisory Committee |
Chung-nan Lee - chair
Yi-Ruei Liu - co-chair
Yi-Ru Lin - co-chair
Cheng-Wen Ko - advisor
|
|---|
| Files |
indicate accessible in a year |
|---|
| Date of Submission |
2006-07-11 |
|---|
