Quantitative modeling of the accuracy in registering preoperative patient‐specific anatomic models into left atrial cardiac ablation procedures

Rettmann, Maryam E.; Holmes, David R.; Kwartowitz, David M.; Gunawan, Mia; Johnson, Susan B.; Camp, Jon J.; Cameron, Bruce M.; Dalegrave, Charles; Kolasa, Mark W.; Packer, Douglas L.; Robb, Richard A.

doi:10.1118/1.4861712

Cited by 6 publications

(12 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first stage is applied to obtain an accurate representation of the patient anatomical details with a particular interest in the design of the atrial boundaries at the inter‐atrial septum region. Previous works have used a similar approach to generate the phantom model for catheter ablation simulation . Nevertheless, they failed to correctly generate the entire inter‐septal wall .…”

Section: Discussionmentioning

confidence: 99%

“…The heartbeat is simulated through water or air pumps, with functional parameters similar to the physiological ones. Recently, some authors focused on atrial phantom models . These models were mainly used for training/planning of cardiac ablations, presenting the atrial body and the proximal part of the pulmonary veins.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, some authors focused on atrial phantom models. 11,18,19 These models were mainly used for training/planning of cardiac ablations, 19,20 presenting the atrial body and the proximal part of the pulmonary veins. Nevertheless, these solutions were either rigid 19 or not appropriate for ultrasound (US) acquisition.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development of a patient‐specific atrial phantom model for planning and training of inter‐atrial interventions

et al. 2017

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of a patient‐specific atrial phantom model for planning and training of inter‐atrial interventions

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Next, we calibrate the ultrasound so that each pixel on the ultrasound image has a corresponding coordinate in the reference frame of the tracking device. The calibration method is detailed in [5]. After calibration, the ultrasound probe is inserted into right atrium of the phantom to image the inner wall of left atrium, which exactly simulates the clinical procedures in catheter ablation.…”

Section: Methodsmentioning

confidence: 99%

Simulated evaluation of an intraoperative surface modeling method for catheter ablation by a real phantom simulation experiment

et al. 2015

Self Cite

View full text Add to dashboard Cite

In this work, we propose a phantom experiment method to quantitatively evaluate an intraoperative left-atrial modeling update method. In prior work, we proposed an update procedure which updates the preoperative surface model with information from real-time tracked 2D ultrasound. Prior studies did not evaluate the reconstruction using an anthropomorphic phantom. In this approach, a silicone heart phantom (based on a high resolution human atrial surface model reconstructed from CT images) was made as simulated atriums. A surface model of the left atrium of the phantom was deformed by a morphological operation – simulating the shape difference caused by organ deformation between pre-operative scanning and intra-operative guidance. During the simulated procedure, a tracked ultrasound catheter was inserted into right atrial phantom – scanning the left atrial phantom in a manner mimicking the cardiac ablation procedure. By merging the preoperative model and the intraoperative ultrasound images, an intraoperative left atrial model was reconstructed. According to results, the reconstruction error of the modeling method is smaller than the initial geometric difference caused by organ deformation. As the area of the left atrial phantom scanned by ultrasound increases, the reconstruction error of the intraoperative surface model decreases. The study validated the efficacy of the modeling method.

show abstract

“…Next, a 3D surface model is generated from the volumetric dataset. During the procedure, the 3D model is registered to patient space using a previously validated technique 5 . As the tracked, 2D…”

Section: Surface Model Reconstructionmentioning

confidence: 99%

Updating a preoperative surface model with information from real-time tracked 2D ultrasound using a Poisson surface reconstruction algorithm

et al. 2014

Self Cite

View full text Add to dashboard Cite

In this work, we propose a method for intraoperative reconstruction of a left atrial surface model for the application of cardiac ablation therapy. In this approach, the intraoperative point cloud is acquired by a tracked, 2D freehand intra-cardiac echocardiography device, which is registered and merged with a preoperative, high resolution left atrial surface model built from computed tomography data. For the surface reconstruction, we introduce a novel method to estimate the normal vector of the point cloud from the preoperative left atrial model, which is required for the Poisson Equation Reconstruction algorithm. In the current work, the algorithm is evaluated using a preoperative surface model from patient computed tomography data and simulated intraoperative ultrasound data. Factors such as intraoperative deformation of the left atrium, proportion of the left atrial surface sampled by the ultrasound, sampling resolution, sampling noise, and registration error were considered through a series of simulation experiments.

show abstract

Quantitative modeling of the accuracy in registering preoperative patient‐specific anatomic models into left atrial cardiac ablation procedures

Cited by 6 publications

References 40 publications

Development of a patient‐specific atrial phantom model for planning and training of inter‐atrial interventions

Development of a patient‐specific atrial phantom model for planning and training of inter‐atrial interventions

Simulated evaluation of an intraoperative surface modeling method for catheter ablation by a real phantom simulation experiment

Updating a preoperative surface model with information from real-time tracked 2D ultrasound using a Poisson surface reconstruction algorithm

Contact Info

Product

Resources

About