2015
DOI: 10.1002/mrm.25743
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Multi‐institutional validation of a novel textural analysis tool for preoperative stratification of suspected thyroid tumors on diffusion‐weighted MRI

Abstract: Purpose Ultrasound-guided fine-needle-aspirate-cytology (FNAC) fails to diagnose many malignant thyroid nodules; thus, patients may undergo diagnostic lobectomy. This study assessed whether textural analysis (TA) could non-invasively stratify thyroid nodules accurately using diffusion-weighted (DW) MRI. Methods This multi-institutional study examined 3T DW-MRI images obtained with spin-echo echo-planar-imaging (DW-EPI) sequences. The training dataset included 26 patients from Cambridge, UK and test dataset i… Show more

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Cited by 47 publications
(47 citation statements)
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References 30 publications
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“…In this study it was shown that co-occurrence matrices are more effective descriptors of local texture in comparison to features based on momentums, run-length matrices or local anisotropy. Similar results could be found in other trials on NMR image texture analysis [29]. It should be noted that co-occurrence matrices are sensitive to the number and volume in voxels of samples.…”
Section: Image Texturesupporting
confidence: 89%
“…In this study it was shown that co-occurrence matrices are more effective descriptors of local texture in comparison to features based on momentums, run-length matrices or local anisotropy. Similar results could be found in other trials on NMR image texture analysis [29]. It should be noted that co-occurrence matrices are sensitive to the number and volume in voxels of samples.…”
Section: Image Texturesupporting
confidence: 89%
“…В этом исследовании показано, что вычисление ма-триц совместной встречаемости -более эффективное описание локальной текстуры мышц по сравнению с характеристиками, основанными на моментах, матри-цами группового кодирования или локальной анизо-тропией. Аналогичные результаты приводятся и в дру-гих исследованиях по оценке текстуры изображения [192]. Следует отметить, что матрицы совместной встре-чаемости обладают чувствительностью по отношению к количеству и размерам вокселей.…”
Section: лекции и обзорыunclassified
“…25,27 For example, some works have treated the GLCMs as separated in each direction, [29][30][31] whereas others have preferred to average the matrices to reduce the number of parameters used in the subsequent statistical analysis. 28,32 • Specific parameters for texture matrix formulation: the choice of the distance between pixels for the computation of GLCM is another factor that can affect the value and number of the features.…”
mentioning
confidence: 99%
“…However, in this case, it is general practice to consider a distance of 1 pixel, 9 even if some works preferred to take into account more than one distance. 31,33 • Use of already available packages: the availability of different software for the computation of textural features makes texture analysis more appealing and easy to use. However, this leads to doubting if all the considered features were correctly computed.…”
mentioning
confidence: 99%