التفاصيل البيبلوغرافية
| العنوان: |
Realistic phantoms for quantitative MR: the need and a proposal (the B1 sleeve) |
| المؤلفون: |
Paul S Tofts |
| المصدر: |
IPEM-Translation, Vol 9, Iss , Pp 100026- (2024) |
| بيانات النشر: |
Elsevier, 2024. |
| سنة النشر: |
2024 |
| المجموعة: |
LCC:Medicine (General) |
| مصطلحات موضوعية: |
Quantitative MRI, In-vivo measurement, Phantoms, RF B1 effects, Metrology, quantification, Medicine (General), R5-920 |
| الوصف: |
Quantitative MR (qMR) has offered direct access to in-vivo biology and physiology for over three decades, yet it has failed to translate into the clinic. Why is this? The development of suitable phantoms is a key stage in the evolution of qMR, and here a systematic categorisation is proposed. Currently there is much attention paid to creating simple head phantoms containing materials with metrologically traceable values of MR quantities. However these are usually unrealistic; many of the disrupting phenomena present in clinical imaging are absent. Good performance with a simple traceable phantom is a necessary but not sufficient requirement for the establishment of good in-vivo measurement performance. There is therefore a premium on developing realistic phantoms. A proposal made for a more realistic body phantom that includes RF B1 imperfections. It consists of lossy annuli placed around a standard head phantom. Other confounding phenomena could be identified, possibly built into an appropriate annulus around a simple head phantom, to form realistic phantoms; these would enable validation of qMR methods and translation to the clinic. The concept is probably applicable to other quantitative diagnostic imaging modalities. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2667-2588 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2667258824000049; https://doaj.org/toc/2667-2588 |
| DOI: |
10.1016/j.ipemt.2024.100026 |
| URL الوصول: |
https://doaj.org/article/6ee0167e0aba4c119c12e6998ad35640 |
| رقم الانضمام: |
edsdoj.6ee0167e0aba4c119c12e6998ad35640 |
| قاعدة البيانات: |
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