FluoroCT 3.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X is an intellectual property of Pascal Thériault-Lauzier and Nicolo Piazza. We recommend checking the downloaded files with any free antivirus. FluoroCT for Mac lies within Design & Photo Tools, more precisely Viewers & Editors.
From the developer:
FluoroCT is a lightweight yet powerful CT scan visualization software designed by interventional cardiologists. It provides all the tools required to analyze CT scans prior to structural heart interventions such as transcatheter aortic valve replacement (TAVR), left atrial appendage occlusion, atrial/ventricular septal defect closure, and transcatheter mitral valve replacement.
You may want to check out more software for Mac, such as Cuadro or iPodEditor, which might be related to FluoroCT.