The system can capture either bioluminescent or fluorescent signals generated by reporter molecules. These signals provide optical readouts of biological activity, while the camera records their emitted light for analysis. Selecting the appropriate signal type allows researchers to track molecular or cellular events in biological samples or living organisms over time.
A highly sensitive camera captures the emitted optical signal, and associated software maps where that signal appears and how intense it is. Researchers can therefore compare both location and signal strength across measurements. These spatial and quantitative outputs help relate optical changes to molecular or cellular activity in the imaged subject.
Reporter molecules provide the detectable bioluminescent or fluorescent signal that links an underlying biological process to an optical measurement. When their signal changes, the system can help researchers monitor associated molecular or cellular activity. This makes reporter-based imaging useful for following disease-related changes or treatment responses without relying solely on invasive sampling.
Repeated measurements in the same subject create a longitudinal view of biological change, rather than isolated observations from different subjects or time points. This approach can show how disease progression, gene expression, tumor growth, infection, or therapeutic response develops over time. It may also reduce the need for invasive sampling.
A study first uses a biological sample or living organism that produces a detectable reporter signal. The system then captures the emitted light with its sensitive camera, after which software maps signal location and quantifies intensity. Repeating this sequence over time enables researchers to compare changes within the same experimental subject.
In medicine, researchers apply IVIS imaging to preclinical investigations of disease progression, gene expression, tumor growth, infection, and therapeutic responses. Its value is greatest when the research question requires observation across multiple time points. The resulting optical measurements can support comparisons of how biological activity changes during disease or following treatment.