Abstract
Accurate visualization and targeting of specific anatomic locations are key components for successful treatment in catheter based cardiac ablation therapy. In order to augment visualization tools such as bi-plane fluoroscopy and real-time ultrasound, recent work has focussed on registering detailed, patient-specific models into the procedure. Surface based techniques are a popular approach, however, challenges include sensitivity to both the number and as well as locations of selected surface points, thereby making registration accuracy dependent on operator experience as well as patient anatomy. In this work, we propose a new technique for registering preoperative models into patient space by combining a surface based method with a volumetric based approach. The volumetric approach utilizes points from the continuously tracked catheter which is sampled at a rate of five times per second. The technique is tested using data from a canine experiment with five ground truth fiducial markers. The combined registration technique has smaller mean errors for all fiducial markers as compared to using a surface based technique alone. The combined surface and volumetric approach is also more robust to surface point selection, thereby decreasing the sensitivity of point selection on the registration result.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings - 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009 |
| Pages | 1087-1090 |
| Number of pages | 4 |
| DOIs | |
| State | Published - 2009 |
| Event | 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009 - Boston, MA, United States Duration: Jun 28 2009 → Jul 1 2009 |
Other
| Other | 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009 |
|---|---|
| Country | United States |
| City | Boston, MA |
| Period | 6/28/09 → 7/1/09 |
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Keywords
- Biomedical image processing
- Cardiac ablation
- Image guidance
- Left atrium
ASJC Scopus subject areas
- Biomedical Engineering
- Radiology Nuclear Medicine and imaging
Cite this
A combined surface and volumetric approach for registration of patient specific models into left atrial cardiac ablation procedures. / Rettmann, M. E.; Holmes III, David R.; Dalegrave, C.; Stanton, C.; Johnson, S. B.; Packer, Douglas L; Robb, R. A.
Proceedings - 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009. 2009. p. 1087-1090 5193245.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A combined surface and volumetric approach for registration of patient specific models into left atrial cardiac ablation procedures
AU - Rettmann, M. E.
AU - Holmes III, David R.
AU - Dalegrave, C.
AU - Stanton, C.
AU - Johnson, S. B.
AU - Packer, Douglas L
AU - Robb, R. A.
PY - 2009
Y1 - 2009
N2 - Accurate visualization and targeting of specific anatomic locations are key components for successful treatment in catheter based cardiac ablation therapy. In order to augment visualization tools such as bi-plane fluoroscopy and real-time ultrasound, recent work has focussed on registering detailed, patient-specific models into the procedure. Surface based techniques are a popular approach, however, challenges include sensitivity to both the number and as well as locations of selected surface points, thereby making registration accuracy dependent on operator experience as well as patient anatomy. In this work, we propose a new technique for registering preoperative models into patient space by combining a surface based method with a volumetric based approach. The volumetric approach utilizes points from the continuously tracked catheter which is sampled at a rate of five times per second. The technique is tested using data from a canine experiment with five ground truth fiducial markers. The combined registration technique has smaller mean errors for all fiducial markers as compared to using a surface based technique alone. The combined surface and volumetric approach is also more robust to surface point selection, thereby decreasing the sensitivity of point selection on the registration result.
AB - Accurate visualization and targeting of specific anatomic locations are key components for successful treatment in catheter based cardiac ablation therapy. In order to augment visualization tools such as bi-plane fluoroscopy and real-time ultrasound, recent work has focussed on registering detailed, patient-specific models into the procedure. Surface based techniques are a popular approach, however, challenges include sensitivity to both the number and as well as locations of selected surface points, thereby making registration accuracy dependent on operator experience as well as patient anatomy. In this work, we propose a new technique for registering preoperative models into patient space by combining a surface based method with a volumetric based approach. The volumetric approach utilizes points from the continuously tracked catheter which is sampled at a rate of five times per second. The technique is tested using data from a canine experiment with five ground truth fiducial markers. The combined registration technique has smaller mean errors for all fiducial markers as compared to using a surface based technique alone. The combined surface and volumetric approach is also more robust to surface point selection, thereby decreasing the sensitivity of point selection on the registration result.
KW - Biomedical image processing
KW - Cardiac ablation
KW - Image guidance
KW - Left atrium
UR - http://www.scopus.com/inward/record.url?scp=70449331286&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70449331286&partnerID=8YFLogxK
U2 - 10.1109/ISBI.2009.5193245
DO - 10.1109/ISBI.2009.5193245
M3 - Conference contribution
AN - SCOPUS:70449331286
SN - 9781424439324
SP - 1087
EP - 1090
BT - Proceedings - 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009
ER -