دورية أكاديمية
Influence of the FID and off-resonance effects in dense MRI
| العنوان: | Influence of the FID and off-resonance effects in dense MRI |
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| المؤلفون: | Haraldsson, Henrik, Sigfridsson, Andreas, Sakuma, Hajime, Engvall, Jan, Ebbers, Tino |
| بيانات النشر: | Centrum för medicinsk bildvetenskap och visualisering, CMIV Klinisk fysiologi Hälsouniversitetet Fysiologiska kliniken Fysiologiska kliniken US Mekanisk värmeteori och strömningslära Fysiologi Wiley |
| سنة النشر: | 2011 |
| المجموعة: | Linköping University Electronic Press (LiU E-Press) |
| مصطلحات موضوعية: | Medical and Health Sciences, Medicin och hälsovetenskap |
| الوصف: | Accurate functional measurement in cardiovascular diseases is important as inaccuracy may compromise diagnostic decisions. Cardiac function can be assessed using displacement encoding with stimulated echoes, resulting in three signal components. The free induction decay (FID), arising from spins undergoing T1-relaxation, is not displacement encoded and impairs the displacement acquired. Techniques for suppressing the FID exist; however, a residual will remain. The effect of the residual is difficult to distinguish and investigate in vitro and in vivo. In this work, the influence of the FID as well as of off-resonance effects is evaluated by altering the phase of the FID in relation to the stimulated echo. The results show that the FID and off-resonance effects can impair the accuracy of the displacement measurement acquired. The influence of the FID can be avoided by using an encoded reference. We therefore recommend the assessment of this influence of the FID for each displacement encoding with stimulated echoes protocol. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | Magnetic Resonance in Medicine, 0740-3194, 2011, 65:4, s. 1104-1112; orcid:0000-0002-5716-5098; orcid:0000-0003-1395-8296; http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-60266Test; ISI:000288612000023 |
| DOI: | 10.1002/mrm.22692 |
| الإتاحة: | https://doi.org/10.1002/mrm.22692Test http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-60266Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.A4DC1E46 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/mrm.22692 |
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