respiTrack: Patient-specific real-time respiratory tumor motion prediction using magnetic tracking

Real-time respiratory motion detection with optical patient tracking method

Stereotactic navigation is usually based on rigid registration of the intraoperative situation with preoperatively acquired images. Under this assumption, soft tissue deformation and patient motion will affect the guidance information provided by optical navigation system and can add significant inaccuracy depending on the amount of target motion relative to the initial scenario from pre-operat...

Kernel density estimation-based real-time prediction for respiratory motion.

Effective delivery of adaptive radiotherapy requires locating the target with high precision in real time. System latency caused by data acquisition, streaming, processing and delivery control necessitates prediction. Prediction is particularly challenging for highly mobile targets such as thoracic and abdominal tumors undergoing respiration-induced motion. The complexity of the respiratory mot...

Online 4-D CT Estimation for Patient-Specific Respiratory Motion Based on Real-Time Breathing Signals

In image-guided lung intervention, the electromagnetic (EM) tracked needle can be visualized in a pre-procedural CT by registering the EM tracking and the CT coordinate systems. However, there exist discrepancies between the static pre-procedural CT and the patient due to respiratory motion. This paper proposes an online 4-D CT estimation approach to patient-specific respiratory motion compensa...

Real-Time Respiratory Motion Correction for Cardiac Electrophysiology Procedures Using Image-Based Coronary Sinus Catheter Tracking

X-ray fluoroscopically guided cardiac electrophysiological procedures are routinely carried out for diagnosis and treatment of cardiac arrhythmias. X-ray images have poor soft tissue contrast and, for this reason, overlay of static 3D roadmaps derived from pre-procedural volumetric data can be used to add anatomical information. However, the registration between the 3D roadmap and the 2D X-ray ...

Real-Time Motion Tracking System using Omni-Directional PTZ Camera