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Keywords:
Cancer, Diagnostic procedure, Contrast agent-intravenous, Ultrasound, Elastography, Thyroid / Parathyroids, Head and neck
Authors:
H. Wu1, Q. Chen2, Q. Zhou2, Y. Liu3, J. Luo2, J. Chen2; 1Zunyi/CN, 2Chengdu/CN, 3Beijing/CN
DOI:
10.1594/ecr2015/C-1739
Results
122 patients (mean age was 43.18±13.07 years)with 126 category 3(37 benign,
14 malignant) and category 4(26 benign,
49 malignant)nodules were included.
In both benign and malignant nodules,
correlation between MAXavg/SDavg and size was positive and statistically significant and correlation between MEANavg/MAXavg and the depth were negative and statistically significant(Table 1).
MAXavg/SDavg located in the isthmus were statistically different from those located in other positions in the benign nodules but not in the malignant nodules.
MEANavg/MAXavg/SDavg with microcalcifications were statistically significantly higher than those without them.
located in the isthmus were statistically different from those located in other positions in the benign nodules but not in the malignant nodules(Table 2,3).
The optimal EI to predict malignant nodules was MAXr(AUCs 0.752-0.896,P<0.001,cut-off value 1.96) and the sensitivity,
specificity,
accuracy,
PPV and NPV were 68.3%,
88.9%,
78.6%,
86.0% and 73.7%,
respectively(Table 4,5).
Intraobserver reliability for all of the EIs were good except for SDr (Table 6-8).