التفاصيل البيبلوغرافية
| العنوان: |
Construction of a temperature-controlled diffusion phantom for quality control of diffusion measurements |
| المؤلفون: |
Carolin Reischauer, Philipp Staempfli, T. Jaermann, Peter Boesiger |
| المساهمون: |
University of Zurich, Reischauer, C |
| سنة النشر: |
2009 |
| مصطلحات موضوعية: |
Quality Control, Work (thermodynamics), Materials science, 610 Medicine & health, Imaging phantom, 170 Ethics, Quality (physics), Calibration, Image Processing, Computer-Assisted, 2741 Radiology, Nuclear Medicine and Imaging, Radiology, Nuclear Medicine and imaging, Computer Simulation, 10237 Institute of Biomedical Engineering, Diffusion (business), Reproducibility, Temperature control, Phantoms, Imaging, Temperature, Reproducibility of Results, Diffusion Magnetic Resonance Imaging, Feature (computer vision), Polyethylene, Radiology Nuclear Medicine and imaging, Biological system, Hydrophobic and Hydrophilic Interactions, Algorithms |
| الوصف: |
Purpose To construct a temperature-controlled diffusion phantom with known diffusion properties and geometry in order to facilitate the comparison and optimization of diffusion sequences with the objective of increasing the precision of experimentally derived diffusion parameters. Materials and Methods A temperature-stabilized diffusion phantom made up of two crossing strands of hydrophobic polyethylene fibers was constructed. Reproducibility and temperature dependence of several diffusion parameters was investigated and compared with computer simulations. Furthermore, in order to stimulate actual use, the precision of measurement of different diffusion-encoding schemes was compared using bootstrap analysis. Results The measured values of the diffusion parameters are highly reproducible and feature strong temperature dependence which is reproduced in simulations, underlining the necessity of a temperature-stabilized environment for quality control. The exemplary application presented here demonstrates that the phantom allows comparing and optimizing different diffusion sequences with regard to their measurement precision. Conclusion The present work demonstrates that the diffusion phantom facilitates and improves the comparison and quality control of diffusion sequences and the ensuing parameters. The results show that an accurate temperature control is a vital prerequisite for highly reproducible calibration measurements. As such, the phantom might provide a valuable calibration tool for clinical studies. J. Magn. Reson. Imaging 2009;29:692–698. © 2009 Wiley-Liss, Inc. |
| وصف الملف: |
24171_Verlag_V.pdf - application/pdf |
| اللغة: |
English |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b28319a93dc0fb4a0baa0409743283d
https://doi.org/10.5167/uzh-24171 |
| حقوق: |
OPEN |
| رقم الأكسشن: |
edsair.doi.dedup.....1b28319a93dc0fb4a0baa0409743283d |
| قاعدة البيانات: |
OpenAIRE |
