A Comparison of Theory-Based and Experimentally Determined Myocardial Signal Intensity Correction Methods in First-Pass Perfusion Magnetic Resonance Imaging
المؤلفون المشاركون
Benefield, Brandon C.
Bakhos, Lara
Harris, Kathleen R.
Lee, Daniel C.
Fluckiger, Jacob U.
المصدر
Computational and Mathematical Methods in Medicine
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-09-30
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Objectives.
To evaluate the impact of correcting myocardial signal saturation on the accuracy of absolute myocardial blood flow (MBF) measurements.
Materials and Methods.
We performed 15 dual bolus first-pass perfusion studies in 7 dogs during global coronary vasodilation and variable degrees of coronary artery stenosis.
We compared microsphere MBF to MBF calculated from uncorrected and corrected MRI signal.
Four correction methods were tested, two theoretical methods (Th1 and Th2) and two empirical methods (Em1 and Em2).
Results.
The correlations with microsphere MBF (n=90 segments) were: uncorrected (y=0.47x+1.1, r=0.70), Th1 (y=0.53x+1.0, r=0.71), Th2 (y=0.62x+0.86, r=0.73), Em1 (y=0.82x+0.86, r=0.77), and Em2 (y=0.72x+0.84, r=0.75).
All corrected methods were not significantly different from microspheres, while uncorrected MBF values were significantly lower.
For the top 50% of microsphere MBF values, flows were significantly underestimated by uncorrected SI (31%), Th1 (25%), and Th2 (19%), while Em1 (1%), and Em2 (9%) were similar to microsphere MBF.
Conclusions.
Myocardial signal saturation should be corrected prior to flow modeling to avoid underestimation of MBF by MR perfusion imaging.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Fluckiger, Jacob U.& Benefield, Brandon C.& Bakhos, Lara& Harris, Kathleen R.& Lee, Daniel C.. 2015. A Comparison of Theory-Based and Experimentally Determined Myocardial Signal Intensity Correction Methods in First-Pass Perfusion Magnetic Resonance Imaging. Computational and Mathematical Methods in Medicine،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1058016
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Fluckiger, Jacob U.…[et al.]. A Comparison of Theory-Based and Experimentally Determined Myocardial Signal Intensity Correction Methods in First-Pass Perfusion Magnetic Resonance Imaging. Computational and Mathematical Methods in Medicine No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1058016
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Fluckiger, Jacob U.& Benefield, Brandon C.& Bakhos, Lara& Harris, Kathleen R.& Lee, Daniel C.. A Comparison of Theory-Based and Experimentally Determined Myocardial Signal Intensity Correction Methods in First-Pass Perfusion Magnetic Resonance Imaging. Computational and Mathematical Methods in Medicine. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1058016
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1058016
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر