Figuring out the mesh number is simple. All you do is count the number of openings in one linear inch of screen. This count is the mesh number. A 4 mesh screen means there are four little square openings across one inch of screen. A 100 mesh screen has 100 openings per inch, and so on. Note: As the number indicating the mesh size increases, the size of the openings and thus the size of particles captured decreases. Higher mesh numbers = finer particle sizes. It is very important to remember that mesh size is not a precise measurement of particle size.
Intravascular ultrasound. Intravascular ultrasound (IVUS) is a medical imaging methodology using a specially designed catheter with a miniaturized ultrasound probe attached to the distal end of the catheter. The proximal end of the catheter is attached to computerized ultrasound equipment.
ACIST HDi High-Definition Intravascular Ultrasound System. October 8, 2014 -- At last month's Transcatheter Cardiovascular Therapeutics meeting in Washington, DC, a new high-definition intravascular ultrasound (IVUS) system was demonstrated as part of two live case broadcasts.