![](/images/graphics-bg.png)
Attenuation Correction for Small Animal PET Images : A Comparison of Two Methods
المؤلفون المشاركون
Zagni, Federico
D'Ambrosio, Daniela
Spinelli, Antonello E.
Marengo, Mario
المصدر
Computational and Mathematical Methods in Medicine
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-04-16
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
In order to extract quantitative parameters from PET images, several physical effects such as photon attenuation, scatter, and partial volume must be taken into account.
The main objectives of this work were the evaluation of photon attenuation in small animals and the implementation of two attenuation correction methods based on X-rays CT and segmentation of emission images.
The accuracy of the first method with respect to the beam hardening effect was investigated by using Monte Carlo simulations.
Mouse- and rat-sized phantoms were acquired in order to evaluate attenuation correction in terms of counts increment and recovery of uniform activity concentration.
Both methods were applied to mice and rat images acquired with several radiotracers such asF18-FDG, 11C-acetate, 68Ga-chloride, and F18-NaF.
The accuracy of the proposed methods was evaluated in heart and tumour tissues using F18-FDG images and in liver, kidney, and spinal column tissues using C11-acetate, Ga68-chloride, and F18-NaF images, respectively.
In vivo results from animal studies show that, except for bone scans, differences between the proposed methods were about 10% in rats and 3% in mice.
In conclusion, both methods provide equivalent results; however, the segmentation-based approach has several advantages being less time consuming and simple to implement.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
D'Ambrosio, Daniela& Zagni, Federico& Spinelli, Antonello E.& Marengo, Mario. 2013. Attenuation Correction for Small Animal PET Images : A Comparison of Two Methods. Computational and Mathematical Methods in Medicine،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-446566
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
D'Ambrosio, Daniela…[et al.]. Attenuation Correction for Small Animal PET Images : A Comparison of Two Methods. Computational and Mathematical Methods in Medicine No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-446566
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
D'Ambrosio, Daniela& Zagni, Federico& Spinelli, Antonello E.& Marengo, Mario. Attenuation Correction for Small Animal PET Images : A Comparison of Two Methods. Computational and Mathematical Methods in Medicine. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-446566
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-446566
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
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
![](/images/kashef-image.png)