Optoacoustic monitoring of real-time lesion formation during radiofrequency catheter ablation.
    
    
        
    
    
        
        Proc. SPIE 9323:932308 (2015)
    
    
    
		
		
			
				Current radiofrequency cardiac ablation procedures lack real-time lesion monitoring guidance, limiting the reliability and efficacy of the treatment. The objective of this work is to demonstrate that optoacoustic imaging can be applied to develop a diagnostic technique applicable to radiofrequency ablation for cardiac arrhythmia treatment with the capabilities of real-time monitoring of ablated lesion size and geometry. We demonstrate an optoacoustic imaging method using a 256-detector optoacoustic imaging probe and pulsed-laser illumination in the infrared wavelength range that is applied during radiofrequency ablation in excised porcine myocardial tissue samples. This technique results in images with high contrast between the lesion volume and unablated tissue, and is also capable of capturing time-resolved image sequences that provide information on the lesion development process. The size and geometry of the imaged lesion were shown to be in excellent agreement with the histological examinations. This study demonstrates the first deep-lesion real-time monitoring for radiofrequency ablation generated lesions, and the technique presented here has the potential for providing critical feedback that can significantly impact the outcome of clinical radiofrequency ablation procedures. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Cardiac Ablation ; Lesion Monitoring ; Optoacoustic ; Photoacoustic ; Radiofrequency ; Real-time ; Three-dimensional ; Tomography
    
 
    
        Keywords plus
        
    
 
    
    
        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2015
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2015
    
 
    
    
        ISSN (print) / ISBN
        0277-786X
    
 
    
        e-ISSN
        1996-756X
    
 
    
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        Konferenztitel
        Photons Plus Ultrasound: Imaging and Sensing 2015
    
 
	
        Konferzenzdatum
        7-12 February 2015
    
     
	
        Konferenzort
        San Francisco, USA
    
 
	
        Konferenzband
        
    
 
     
		
    
        Quellenangaben
        
	    Band: 9323,  
	    Heft: ,  
	    Seiten: ,  
	    Artikelnummer: 932308 
	    Supplement: ,  
	
    
 
  
        
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            SPIE
        
 
        
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        Begutachtungsstatus
        Peer reviewed
    
 
     
    
        POF Topic(s)
        30205 - Bioengineering and Digital Health
    
 
    
        Forschungsfeld(er)
        Enabling and Novel Technologies
    
 
    
        PSP-Element(e)
        G-505590-001
    
 
    
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        Erfassungsdatum
        2015-05-08