There are multiple definitions:

1. computational fluid dynamics(English)

   • FFR, FSI, DPIV, FFRCT
   • Hemodynamics, Coronary circulation, Bioengineering, Artificial intelligence
   • http://bakker.org/

2. complement Factors D(English)

   • ARMD, CFH, HM, IMI
   • Ophthalmology
   • https://doi.org…390/jcm10122600

3. color flow Doppler(English)

   • AF, CW, DRT, IAS, ICE, LA, LAA, LAAO, non-CW, PDL, PLAATO, SEC, TEE, TTE
   • Doppler technique, Medical imaging
   • https://doi.org…1111/echo.15722