The Role of CT-Based Attenuation Correction and Collimator Blurring Correction in Striatal Spect Quantification
المؤلفون المشاركون
Carey, P.
Beetge, E.
Rubow, S.
Warwick, J. M.
du Toit, M.
Dupont, P.
المصدر
International Journal of Molecular Imaging
العدد
المجلد 2011، العدد 2011 (31 ديسمبر/كانون الأول 2011)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2011-04-06
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Purpose.
Striatal single photon emission computed tomography (SPECT) imaging of the dopaminergic system is becoming increasingly used for clinical and research studies.
The question about the value of nonuniform attenuation correction has become more relevant with the increasing availability of hybrid SPECT-CT scanners.
In this study, the value of nonuniform attenuation correction and correction for collimator blurring were determined using both phantom data and patient data.
Methods.
SPECT imaging was performed using 7 anthropomorphic phantom measurements, and 14 patient studies using [I-123]-FP-CIT (DATSCAN).
SPECT reconstruction was performed using uniform and nonuniform attenuation correction and collimator blurring corrections.
Recovery values (phantom data) or average-specific uptake ratios (patient data) for the different reconstructions were compared at similar noise levels.
Results.
For the phantom data, improved recovery was found with nonuniform attenuation correction and collimator blurring corrections, with further improvement when performed together.
However, for patient data the highest average specific uptake ratio was obtained using collimator blurring correction without nonuniform attenuation correction, probably due to subtle SPECT-CT misregistration.
Conclusions.
This study suggests that an optimal brain SPECT reconstruction (in terms of the lowest bias) in patients would include a correction for collimator blurring and uniform attenuation correction.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Warwick, J. M.& Rubow, S.& du Toit, M.& Beetge, E.& Carey, P.& Dupont, P.. 2011. The Role of CT-Based Attenuation Correction and Collimator Blurring Correction in Striatal Spect Quantification. International Journal of Molecular Imaging،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-453569
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Warwick, J. M.…[et al.]. The Role of CT-Based Attenuation Correction and Collimator Blurring Correction in Striatal Spect Quantification. International Journal of Molecular Imaging No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-453569
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Warwick, J. M.& Rubow, S.& du Toit, M.& Beetge, E.& Carey, P.& Dupont, P.. The Role of CT-Based Attenuation Correction and Collimator Blurring Correction in Striatal Spect Quantification. International Journal of Molecular Imaging. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-453569
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-453569
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