| Autor: |
Xi-gang, Feng, Zhi-bo, Wen, Fan-heng, Huang, Yi-quan, Lin |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Di 1 jun yi da xue xue bao = Academic journal of the first medical college of PLA. 24(7) |
| ISSN: |
1000-2588 |
| Popis: |
To develop a simple method for evaluating the stability of magnetic resonance (MR) scanner during brain function imaging.A symmetrical water phantom was scanned using the same sequence and parameters as for brain function imaging. The stability of MR scanner was evaluated in view of the signal levels of phantom images.The quality control chart of the mean value, standard deviation and the range of the signal level in the region of interest (ROI) within the same region on 128 phantom images were obtained, demonstrating the state of stability of the MR scanner.The quality control chart of ROI can be used to evaluate the stability of the MR scanner. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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