Second-harmonic generation imaging of collagen fibers in myocardium for atrial fibrillation diagnosis

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题名:	Second-harmonic generation imaging of collagen fibers in myocardium for atrial fibrillation diagnosis
作者:	Tsai,MR;Chiu,YW;Lo,MT;Sun,CK
贡献者:	電機工程學系
日期:	2010
上传时间:	2012-03-28 10:12:38 (UTC+8)
出版者:	國立中央大學
摘要:	Atrial fibrillation (AF) is the most common irregular heart rhythm and the mortality rate for patients with AF is approximately twice the mortality rate for patients with normal sinus rhythm (NSR). Some research has indicated that myocardial fibrosis plays an important role in predisposing patients to AF. Therefore, realizing the relationship between myocardial collagen fibrosis and AF is significant. Second-harmonic generation (SHG) is an optically nonlinear coherent process to image the collagen network. We perform SHG microscopic imaging of the collagen fibers in the human atrial myocardium. Utilizing the SHG images, we can identify the differences in morphology and the arrangement of collagen fibers between NSR and AF tissues. We also quantify the arrangement of the collagen fibers using Fourier transform images and calculating the values of angle entropy. We indicate that SHG imaging, a nondestructive and reproducible method to analyze the arrangement of collagen fibers, can provide explicit information about the relationship between myocardial fibrosis and AF. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3365943]
關聯:	JOURNAL OF BIOMEDICAL OPTICS
显示于类别:	[電機工程學系] 期刊論文

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