21.07.2013 Views

Living Image 3.1

Living Image 3.1

Living Image 3.1

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

5. Working With ROI Tools<br />

Table 5.1 Types of ROIs<br />

Description<br />

Available ROI<br />

Drawing Methods<br />

Available Shapes<br />

70<br />

NOTE<br />

Type of ROI<br />

Measurement ROI Average Background ROI Subject ROI<br />

Measures the signal<br />

intensity in an area of an<br />

image.<br />

Manual<br />

Automatic<br />

Free draw<br />

Circle, square, grid, or<br />

contour<br />

Measures the average signal intensity<br />

in a user-specified area of the image<br />

that is considered background.<br />

Note: Using this type of ROI is optional.<br />

If the animal has significant<br />

autoluminescence or autofluorescence,<br />

you can determine a backgroundcorrected<br />

signal in a measurement ROI<br />

by subtracting an average background<br />

ROI from a measurement ROI.<br />

Manual<br />

Free draw<br />

For a quick guide to drawing a measurement ROI, see page 73.<br />

Identifies a subject animal in an<br />

image.<br />

Note: Using this type of ROI is<br />

optional. It provides a convenient<br />

way to automatically associate (link)<br />

a measurement and average<br />

background ROI for backgroundcorrected<br />

ROI measurements when<br />

there is significant<br />

autoluminescence or<br />

autofluorescence.<br />

Manual<br />

Automatic<br />

Free draw<br />

Circle or square Square

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!