Name
Title | ||
|---|---|---|
Real-time fusion of endoscopic views with dynamic 3-D cardiac images: a phantom study. |
Abstract | ||
|---|---|---|
Minimally invasive robotically assisted cardiac surgical systems currently do not routinely employ 3-D image guidance. However, preoperative magnetic resonance and computed tomography (CT) images have the potential to be used in this role, if appropriately registered with the patient anatomy and animated synchronously with the motion of the actual heart. This paper discusses the fusion of optical images of a beating heart phantom obtained from an optically tracked endoscope, with volumetric images of the phantom created from a dynamic CT dataset. High quality preoperative dynamic CT images are created by first extracting the motion parameters of the heart from the series of temporal frames, and then applying this information to animate a high-quality heart image acquired at end systole. Temporal synchronization of the endoscopic and CT model is achieved by selecting the appropriate CT image from the dynamic set, based on an electrocardiographic trigger signal. The spatial error between the optical and virtual images is 1.4 +/- 1.1 mm, while the time discrepancy is typically 50-100 ms. Index Terms-Image guidance, image warping, minimally invasive cardiac surgery, virtual endoscopy, virtual reality. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1109/TMI.2005.853639 | IEEE Trans. Med. Imaging |
Keywords | Field | DocType |
medical robotics,electrocardiography,virtual endoscopy,endoscopic views,endoscopic model,ct model,computerised tomography,endoscopes,virtual reality,heart motion parameters,image warping,biomedical optical imaging,temporal synchronization,virtual reality.,minimally invasive cardiac surgery,3d cardiac images,optically tracked endoscope,virtual images,magnetic resonance images,phantom study,robotically assisted surgical systems,optical images,preoperative ct images,minimally invasive surgical systems,volumetric images,50 to 100 ms,computed tomography images,real-time fusion,dynamic cardiac images,cardiac surgical systems,spatial error,minimally inva- sive cardiac surgery,electrocardiographic trigger signal,beating heart phantom,image guidance,phantoms,surgery,index terms—image guidance,medical image processing,image motion analysis,indexing terms,optical imaging,magnetic resonance,real time | Virtual image,Endoscope,Computer vision,Synchronization,Minimally invasive cardiac surgery,Image warping,Imaging phantom,Artificial intelligence,Electrocardiography,Medicine,Magnetic resonance imaging | Journal |
Volume | Issue | ISSN |
24 | 9 | 0278-0062 |
Citations | PageRank | References |
13 | 0.86 | 14 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Stanislaw Szpala | 1 | 19 | 1.87 |
| Marcin Wierzbicki | 2 | 101 | 10.23 |
| Gerard Guiraudon | 3 | 216 | 17.39 |
| Terry M. Peters | 4 | 1335 | 181.71 |