| Autor: |
Uten Yarach, Suwit Saekho, Patai Buttakote, Siriphan Luxsakhum, Arintaya Phrommintikul, Nipon Chattipakorn |
| Jazyk: |
angličtina |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
Journal of Associated Medical Sciences, Vol 43, Iss 3, Pp 192-192 (2010) |
| Druh dokumentu: |
article |
| ISSN: |
2539-6056 |
| Popis: |
Objectives : To compare the effectiveness and reproducibility of myocardial T2* measurement between breath-hold and free-breathing techniques using GRE black blood multi-echoes pulse sequence. Methods : The techniques were validated by a known iron concentration phantom prior to study in 15 healthy volunteers. The images of single short-axis view of the mid left ventricle were acquired at 10 echo times using both Breath-hold and Free-breathing techniques. The images from both techniques were drawn the Regions of interest (ROI) at the left ventricular septum for T2* analysis. The parameters to be analyzed include Signal to Noise Ratio (SNR), reproducibility and percent coefficient of Variation (%CV). The fitting models used to evaluate for T2* values were the mono-exponential and offset models done by MATLAB 7.01. Results : The correlation between known iron concentration phantom and R2*(1000/T2*) using Pearson‘s test showed strongly linear correlation with a correlation coefficient over 0.96 (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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