Indocyanine green (ICG) is a cyanine dye used in medical diagnostics. It is used for determining cardiac output, hepatic function, and liver blood flow, and for ophthalmic angiography. It has a peak spectral absorption at about 800 nm. These infrared frequencies penetrate retinal layers, allowing ICG angiography to image deeper patterns of circulation than fluorescein angiography.
Rate of interest R = I / PT, where I is the interest, P is the principal amount, T is the interest period, and R is the rate of interest. Rate of interest can be annual, half yearly, or quarterly according to the deal made.
The nominal interest rate is the rate quoted in loan and deposit agreements. The equation that links nominal and real interest rates is: (1 + nominal rate) = (1 + real interest rate) (1 + inflation rate).