Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2017 May 3;7:1472. doi: 10.1038/s41598-017-01650-2

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Receiver operating characteristic (ROC) curves of contrast-enhanced ultrasound quantitative parameters and tumor size for diagnosis of extracapsular extension (ECE) in papillary thyroid carcinoma. Time from peak to one half (TPH) (area under the curve 0.817, cut-off score 57.97 sec), wash in slope (WIS) (area under the curve o.685, cut-off score 0.64 dB/sec) and tumor size (area under the curve 0.699, cut-off score 7.6 mm). It suggests diagnostic significance of TPH, WIS and tumor size with area under the curve >0.5. The cut off score is choosed as that closest to the point of ROC curves with both highest sensitivity and specificity. A nodule with a measurement above the cut-off score of WIS or tumor size was regarded as ECE, and below the cut-off score of TPH was regarded as ECE.