| abstract |
A method for detecting fluorescence radiation from a fluorescence agent, includes:n emitting light at an excitation wavelength range ( 72 ) to cause fluorescence radiation emission in the fluorescence agent, the fluorescence radiation having a fluorescence wavelength profile ( 73 ); detecting light at a first fluorescence wavelength range ( 74 ) as a first detection signal (S 1 ); detecting light at a second fluorescence wavelength range ( 81, 91 ) as a second detection signal (S 2 ); and numerically determining a third detection signal with an improved fluorescence-to-background radiation ratio based on the first detection signal (S 1 ), the second detection signal (S 2 ), and the fluorescence wavelength profile ( 73 ). |