|A new echocardiographic system for assessment of epicardial and intramyocardial coronary flow in a swine model|
|Li, AL; Li, Z; Qu, Z; Wang, XF; Xu, B; Yu, JB; Tian, J|
|关键词||coronary flow imaging coronary blood flow|
|刊名||CHINESE MEDICAL JOURNAL|
|WOS标题词||Science & Technology|
|类目[WOS]||Medicine, General & Internal|
|研究领域[WOS]||General & Internal Medicine|
Objective To visualize epicardial and intramyocardial coronary blood flow by using a noninvasive echocardiography system.
Methods In five juvenile swines, coronary flow imaging was used to visualize the different segments of epicardial coronary and intramyocardial arteries. Pulsed-Doppler spectrums were recorded and analyzed. The left anterior descending artery (LAD) and intramyocardial coronary blood flow signals were recorded at baseline and during dipyridamole administration.
Results Epicardial and intramyocardial coronary arteries could be visualized by coronary flow imaging. The systolic component of coronary flow in the right coronary artery (RCA) was greater than in the LAD. The intramyocardial blood flow was characterized by persistent retrograde blood flow velocity during systole. Vasodilation with dipyridamole produced exaggerated differences in the phasic pattern of coronary blood flow in epicardial and intramyocardial vessels.
Conclusion Color Doppler coronary flow imaging provides a noninvasive method to study the coronary blood flow.
|作者单位||1.Beijing Univ, Peoples Hosp, Dept Diagnost Ultrasound, Beijing 100044, Peoples R China|
2.Huazhong Univ Sci & Technol, Tongji Med Coll, Union Hosp, Dept Diagnost Ultrasound, Wuhan 430022, Peoples R China
3.Anzhen Hosp, Dept Diagnost Ultrasound, Beijing 100029, Peoples R China
|Li, AL,Li, Z,Qu, Z,et al. A new echocardiographic system for assessment of epicardial and intramyocardial coronary flow in a swine model[J]. CHINESE MEDICAL JOURNAL,2002,115(12):1889-1891.|
|APA||Li, AL.,Li, Z.,Qu, Z.,Wang, XF.,Xu, B.,...&Tian, J.(2002).A new echocardiographic system for assessment of epicardial and intramyocardial coronary flow in a swine model.CHINESE MEDICAL JOURNAL,115(12),1889-1891.|
|MLA||Li, AL,et al."A new echocardiographic system for assessment of epicardial and intramyocardial coronary flow in a swine model".CHINESE MEDICAL JOURNAL 115.12(2002):1889-1891.|