Assessment of three-dimensional stent-graft dynamics by using fluoroscopic roentgenographic stereophotogrammetric analysis

Abstract

FRSA has proven to be a method with very high accuracy and temporal resolution to measure three-dimensional stent-graft motion in a pulsatile environment. This technique has the potential to contribute significantly to the knowledge of stent-graft behavior after endovascular aneurysm repair and improvements in stent-graft design. The technique is ready for clinical testing.

Comparative accuracy of radiostereometric and optical tracking systems

“…It has the potential for accuracy surpassing that of optical tracking methods and approaching that of RSA with digital radiography. Work has been done previously to assess the accuracy, bias, and precision of RSA systems (Tashman and Anderst, 2003;Li et al, 2004;Ioppolo et al, 2007;Koning et al, 2007). Furthermore, one study used fRSA as the gold standard to quantify the accuracy of a skin-mounted tracking system .…”

Detecting femur–insert collisions to improve precision of fluoroscopic knee arthroplasty analysis

“…Using a small calibration box, with a known configuration of embedded markers, the relative X-ray focus positions were calculated (Koning et al, 2007).…”

X-ray image denoising with directional support value transform

“…Analysis of X-ray image pairs from fluoroscopic roentgenographic stereophoto-grammetric analysis (FRSA), which is based on the combination of digital biplane fluoroscopy and roentgenographic stereophotogrammetric analysis, is one of the basic methods to measure three-dimensional motion of stent-graft markers with a very high accuracy and precision [1,2]. To effectively detect and extract the markers from these X-ray images, we apply image denoising technique on these images.…”