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

. 2012 Nov 28;11:91. doi: 10.1186/1475-925X-11-91

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

Copyright ©2012 Koprowski et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Assessment of the algorithm sensitivity (specificity (SPC), sensitivity (TPR)) to changes in: a) ROI position in the axes of rows and columns (Δm, Δn) in the range of ±20 pixels and b) ROI size in the axes of rows and columns (ΔM, ΔN) in the range of ±20 pixels. The presented graph a) suggests many conclusions concerning the impact of the change in the position of the ROI on sensitivity and specificity. For example, the ROI shift in the range of ±10 pixels in the row or column axis slightly affects the values of specificity and sensitivity (changes at below 0.05). The figure b) shows that an increase in the size of the ROI by 13 pixels in rows or by 7, 8 pixels in rows and columns causes a significant increase in specificity and sensitivity by approximately 0.03. The analysis of this graph a) and the graph b) indicates that the areas were properly marked by an expert. In another case, the maximum values of sensitivity and specificity for the shift 0 and the change of size 0 of the marked ROI were not visible.