Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Dynamic electronic collimation method for 3-D catheter tracking on a scanning-beam digital x-ray system

Dynamic electronic collimation method for 3-D catheter tracking on a scanning-beam digital x-ray... Abstract.Scanning-beam digital x-ray (SBDX) is an inverse geometry x-ray fluoroscopy system capable of tomosynthesis-based 3-D catheter tracking. This work proposes a method of dose-reduced 3-D catheter tracking using dynamic electronic collimation (DEC) of the SBDX scanning x-ray tube. This is achieved through the selective deactivation of focal spot positions not needed for the catheter tracking task. The technique was retrospectively evaluated with SBDX detector data recorded during a phantom study. DEC imaging of a catheter tip at isocenter required 340 active focal spots per frame versus 4473 spots in full field-of-view (FOV) mode. The dose-area product (DAP) and peak skin dose (PSD) for DEC versus full FOV scanning were calculated using an SBDX Monte Carlo simulation code. The average DAP was reduced to 7.8% of the full FOV value, consistent with the relative number of active focal spots (7.6%). For image sequences with a moving catheter, PSD was 33.6% to 34.8% of the full FOV value. The root-mean-squared-deviation between DEC-based 3-D tracking coordinates and full FOV 3-D tracking coordinates was less than 0.1 mm. The 3-D distance between the tracked tip and the sheath centerline averaged 0.75 mm. DEC is a feasible method for dose reduction during SBDX 3-D catheter tracking. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Medical Imaging SPIE

Dynamic electronic collimation method for 3-D catheter tracking on a scanning-beam digital x-ray system

Download PDF
11 pages

Loading next page...
 
/lp/spie/dynamic-electronic-collimation-method-for-3-d-catheter-tracking-on-a-s9TAbSFqVe

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
SPIE
ISSN
2329-4302
eISSN
2329-4310
DOI
10.1117/1.JMI.4.2.023501
Publisher site
See Article on Publisher Site

Abstract

Abstract.Scanning-beam digital x-ray (SBDX) is an inverse geometry x-ray fluoroscopy system capable of tomosynthesis-based 3-D catheter tracking. This work proposes a method of dose-reduced 3-D catheter tracking using dynamic electronic collimation (DEC) of the SBDX scanning x-ray tube. This is achieved through the selective deactivation of focal spot positions not needed for the catheter tracking task. The technique was retrospectively evaluated with SBDX detector data recorded during a phantom study. DEC imaging of a catheter tip at isocenter required 340 active focal spots per frame versus 4473 spots in full field-of-view (FOV) mode. The dose-area product (DAP) and peak skin dose (PSD) for DEC versus full FOV scanning were calculated using an SBDX Monte Carlo simulation code. The average DAP was reduced to 7.8% of the full FOV value, consistent with the relative number of active focal spots (7.6%). For image sequences with a moving catheter, PSD was 33.6% to 34.8% of the full FOV value. The root-mean-squared-deviation between DEC-based 3-D tracking coordinates and full FOV 3-D tracking coordinates was less than 0.1 mm. The 3-D distance between the tracked tip and the sheath centerline averaged 0.75 mm. DEC is a feasible method for dose reduction during SBDX 3-D catheter tracking.

Journal

Journal of Medical Imaging – SPIE

Published: Apr 1, 2017

References

  • Structural heart disease interventions: rapid clinical growth and challenges in image guidance
    Carroll, J. D.
  • Structural heart intervention. beyond transcatheter valve therapy
    Palacios, I. F.; Arzamendi, D.
  • Radiofrequency ablation of cardiac arrhythmias: past, present and future
    Joseph, J. P.; Rajappan, K.
  • A randomised comparison of Cartomerge vs. NavX fusion in the catheter ablation of atrial fibrillation: the CAVERN trial
    Finlay, M. C.
  • Computed tomography-fluoroscopy image integration-guided catheter ablation of atrial fibrillation
    Sra, J.
  • Is single-view fluoroscopy sufficient in guiding cardiac ablation procedures?
    Fallavollita, P.
  • Electroanatomic versus fluoroscopic mapping for catheter ablation procedures: a prospective randomized study
    Sporton, S. C.
  • Scanning-beam digital x-ray (SBDX) technology for interventional and diagnostic cardiac angiography
    Speidel, M. A.
  • Comparison of entrance exposure and signal-to-noise ratio between an SBDX prototype and a wide-beam cardiac angiographic system
    Speidel, M. A.
  • Detector, collimator, and real-time reconstructor for a new scanning-beam digital x-ray (SBDX) prototype
    Speidel, M. A.
  • Frame-by-frame 3D catheter tracking methods for an inverse geometry cardiac interventional system
    Speidel, M. A.
  • Three-dimensional tracking of cardiac catheters using an inverse geometry x-ray fluoroscopy system
    Speidel, M. A.
  • Feasibility of low-dose single-view 3D fiducial tracking concurrent with external beam delivery
    Speidel, M. A.
  • A real-time regional adaptive exposure method for saving dose-area product in x-ray fluoroscopy
    Burion, S.; Speidel, M. A.; Funk, T.
  • Region of interest fluoroscopy
    Rudin, S.; Bednarek, D. R.
  • Clinical apparatus for the reduction of dose area product for patients undergoing x-ray catheterization
    Robert, N.
  • Dose reduction by moving a region of interest (ROI) beam attenuator to follow a moving object of interest
    Panse, A. S.
  • Signification radiation reduction in interventional fluoroscopy using a novel eye controlled movable region of interest
    Balter, S.
  • Order of magnitude reduction of fluoroscopic x-ray dose
    Abhinav, B.
  • Digital x-ray tomosynthesis: current state of the art
    Dobbins, J. T.; Godfrey, D. J.
  • Monte Carlo simulation of inverse geometry x-ray fluoroscopy using a modified MC-GPU framework
    Dunkerley, D. A. P.
  • Accelerating Monte Carlo simulations of photon transport in a voxelized geometry using a massively parallel graphics processing unit
    Badal, A.; Badano, A.
  • Monte Carlo simulation of x-ray imaging using a graphics processing unit
    Badal, A.; Badano, A.
  • PENELOPE-2006: a code system for Monte Carlo simulation of electron and photon transport
    Salvat, F.; Fernández-Varea, J.; Sempau, J.
  • Predicting error in rigid-body point-based registration
    Fitzpatrick, J. M.; West, J. B.; Maurer, C. R.
  • Automated 3D coronary sinus catheter detection using a scanning-beam digital x-ray system
    Dunkerley, D.
  • Left atrial size and risk for all-cause mortality and ischemic stroke
    Bouza-Mosquera, A.
  • Tomosynthesis-based real-time 3D catheter tracking using a scanning-beam digital x-ray system
    Dunkerley, D.; Speidel, M.