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学科主题临床医学
Relationship between myocardial ultrasonic integrated backscatter and mitochondria of the myocardium in dogs
Gong, Lin1; Wang, Zhi Gang1; Ran, Hai Tao1; Ling, Zhi Yu1; Tang, Hai Ling1; Zheng, Yuan Yi1; Xu, Chuan Shan1; Zhang, Qun Xia1; Pu, Shi Yu1
关键词Ultrasound Ultrasonic Integrated Backscatter Myocardium Mitochondria Stereological Analysis
刊名CLINICAL IMAGING
2006-11-01
DOI10.1016/j.clinimag.2006.08.021
30期:6页:402-408
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]LEFT-VENTRICULAR DYSFUNCTION ; CORONARY-ARTERY-DISEASE ; TISSUE CHARACTERIZATION ; CYCLIC VARIATION ; CONTRACTILE RESERVE ; WALL THICKNESS ; VIABILITY ; CARDIOMYOPATHY ; INFARCTION ; ISCHEMIA
英文摘要

Objective: This study aimed to explore the relationship between integrated backscatter (IBS) and mitochondria in arrested myocardium. Methods: Twelve open-chest dogs were randomly divided into two groups: one group with cardiac arrest in systole and the other with cardiac arrest in diastole. IBS images at parasternal papillary muscle short-axis view were stored at different time frames (0, 30, and 60 min after cardiac arrest). The values of ultrasonic IBS were obtained using the acoustic densitometry technique. After ultrasound examination, tissue samples of corresponding times were harvested and observed under the transmission electron microscope. The microscopic images were analyzed using a computer imaging analysis system to obtain the stereological parameters of mitochondria. The correlation between IBS and the stereological parameters was analyzed. Results: After cardiac arrest, swollen mitochondria with electron-lucent matrix could be observed in some myofibers following the progression of time. The alteration of IBS correlated well with that of mitochondrial stereological parameters, such as volume density (Vv), surface density (Sv), average volume ((nu) over bar), average surface area ((s) over bar), and specific surface (Rsv, ratio between surface and volume). Conclusion: Mitochondria might be an important scatterer in the myocardium for IBS. (C) 2006 Elsevier Inc. All rights reserved.

语种英语
WOS记录号WOS:000242424100005
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/50515
专题北京大学深圳医院
作者单位1.Chongqing Univ Med Sci, Affiliated Hosp 2, Inst Ultrason Image, Dept Ultrasound, Chongqing 400010, Peoples R China
2.Peking Univ, Shenzhen Hosp, Dept Ultrasound Med, Shenzhen 518036, Peoples R China
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GB/T 7714
Gong, Lin,Wang, Zhi Gang,Ran, Hai Tao,et al. Relationship between myocardial ultrasonic integrated backscatter and mitochondria of the myocardium in dogs[J]. CLINICAL IMAGING,2006,30(6):402-408.
APA Gong, Lin.,Wang, Zhi Gang.,Ran, Hai Tao.,Ling, Zhi Yu.,Tang, Hai Ling.,...&Pu, Shi Yu.(2006).Relationship between myocardial ultrasonic integrated backscatter and mitochondria of the myocardium in dogs.CLINICAL IMAGING,30(6),402-408.
MLA Gong, Lin,et al."Relationship between myocardial ultrasonic integrated backscatter and mitochondria of the myocardium in dogs".CLINICAL IMAGING 30.6(2006):402-408.
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