Please click here to obtain permission to reproduce this image.
Click on image to view larger version.
Figure 1 Intraoperative Balloon Aortic Valvuloplasty: Schema of Set-Up and Forces Exerted
(A) Balloon catheter is attached to inflation syringe (Sy) and indeflator (In) in parallel via a 4-way stop cock to measure pressure in the balloon during inflation. (B) At maximal inflation, radial force (quantified by AIBP) is exerted by the native valve on the balloon (arrows) and by the balloon on the valve. AIBP = intra-balloon pressure in addition to the nominal inflation pressure of 2 atms.
|
