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Time-resolved three...
Time-resolved three-dimensional imaging of the left atrium and pulmonary veins in the interventional suite-A comparison between multisweep gated rotational three-dimensional reconstructed fluoroscopy and multislice computed tomography
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- Al-Ahmad, A. (författare)
- Cardiac Arrhythmia Service, Stanford University Medical School, Stanford, CA, United States
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- Wigström, Lars (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Hälsouniversitetet,Klinisk fysiologi,Fysiologiska kliniken
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- Sandner-Porkristl, D. (författare)
- Siemens AG, Medical Solutions, Forchheim, Germany
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- Wang, P.J. (författare)
- Cardiac Arrhythmia Service, Stanford University Medical School, Stanford, CA, United States
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- Zei, P.C. (författare)
- Cardiac Arrhythmia Service, Stanford University Medical School, Stanford, CA, United States
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- Boese, J. (författare)
- Siemens AG, Medical Solutions, Forchheim, Germany
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- Lauritsch, G. (författare)
- Siemens AG, Medical Solutions, Forchheim, Germany
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- Moore, T. (författare)
- Siemens AG, Medical Solutions, Forchheim, Germany
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- Chan, F. (författare)
- Department of Radiology, Stanford University Medical School, Stanford, CA, United States
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- Fahrig, R. (författare)
- Department of Radiology, Stanford University Medical School, Stanford, CA, United States
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(creator_code:org_t)
- Elsevier BV, 2008
- 2008
- Engelska.
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Ingår i: Heart Rhythm. - : Elsevier BV. - 1547-5271. ; 5:4, s. 513-519
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Background: Cardiac computed tomography (CT) is commonly used to visualize left atrial (LA) anatomy for ablation of atrial fibrillation. We have developed a new imaging technique that allows acquisition and visualization of three-dimensional (3D) cardiac images in the catheter lab. Objective: We sought to compare LA and pulmonary vein (PV) dimensions acquired using gated multisweep rotational fluoroscopy (C-arm CT) system and multislice computed tomography (MSCT) in an in vivo porcine model. Methods: A Siemens AXIOM Artis dTA C-arm system (Siemens AG, Medical Solutions) was modified to allow acquisition of four bidirectional sweeps during synchronized acquisition of the electrocardiogram signal to allow retrospective gating. C-arm CT image volumes were then reconstructed. Gated MSCT (SOMATOM Sensation 16 and 64, Siemens AG, Medical Solutions) and C-arm CT images were acquired in six animals. The two main PV diameters were measured in orthogonal axes. LA volumes were calculated. C-arm CT measurements were compared with the MSCT measurements. Results: The average PV diameters using the C-arm CT were 2.24 × 1.35 cm, versus 2.27 × 1.38 cm for CT. The average difference was 0.034 cm (1.9%) between the C-arm CT and standard CT. The average LA volume using MSCT was 49.1 ± 12.7 cm3, as compared with 51.0 ± 8.7 cm3 obtained by the C-arm CT. The average difference between the C-arm CT and the MSCT was 1.9 cm3 (3.7%). There were no significant differences in either the PV or LA measurements. Conclusions: Visualization of 3D cardiac anatomy during ablation procedures is possible and highly accurate. The 3D cardiac reconstructions acquired during ablation procedures will be valuable for procedural planning and guidance. © 2008 Heart Rhythm Society.
Nyckelord
- 3D imaging
- C-arm CT
- Computed tomography
- Multisegment reconstruction
- Pulmonary veins
- Retrospective cardiac gating
- MEDICINE
- MEDICIN
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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