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排序方式: 共有5156条查询结果,搜索用时 15 毫秒
91.
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Assessment of Right Atrium Function in Patients With Systemic Lupus Erythematosus With Different Pulmonary Artery Systolic Pressures by 2‐Dimensional Speckle‐Tracking Echocardiography 下载免费PDF全文
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Ran Chen Meihua Zhu Kacie Amacher Xia Wu David J. Sahn Muhammad Ashraf 《Ultrasound in medicine & biology》2017,43(10):2247-2255
The aim of this study was to evaluate the accuracy and feasibility of real-time 3-D echocardiography (3-DE) in assessing right ventricular (RV) systolic function. A latex balloon was inserted into the right ventricle of 20 freshly harvested pig hearts which were then passively driven by a pulsatile pump apparatus. The RV global longitudinal strain (GLS), global circumferential strain (GCS), global area strain (GAS) and RV ejection fraction (RVEF), derived from 3-DE, as well as the RVEF obtained from 2-D echocardiography (2-DE) were quantified at different stroke volumes (30–70 mL) and compared with sonomicrometry data. In all comparisons, 3-D GLS, GCS, GAS, 2-D RVEF and 3-D RVEF exhibited strong correlations with sonomicrometry data (r = 0.89, 0.79, 0.74, 0.80, and 0.93, respectively; all p values < 0.001). Bland–Altman analyses revealed slight overestimations of echo-derived GLS, GCS, 2-DE RVEF and 3-DE RVEF compared with sonomicrometry values (bias = 1.55, 2.72, 3.59 and 2.21, respectively). Furthermore, there is better agreement among GLS, 3-D RVEF and the sonomicrometry values than between GCS and 2-D RVEF. Real-time 3-DE is more feasible and accurate for assessing RV function than 2-DE. GLS is a potential alternative parameter for quantifying RV systolic function. 相似文献
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A rare complication of mechanical aortic valve replacement: Separation in the region of the mitral‐aortic intervalvular fibrosa 下载免费PDF全文
Mehmet Celik MD Ahmet Güner MD Alev Kılıçgedik MD Sabahattin Gunduz MD Abdulrahman Naser MD Elif Eroglu Büyüköner MD Muzaffer Kahyaoglu MD Cagatay Onal MD Gokhan Kahveci MD 《Echocardiography (Mount Kisco, N.Y.)》2017,34(8):1232-1233
A 28‐year‐old man was admitted to our emergency service with a shortness of breath and palpitation. On admission, his blood pressure was high and he was in hypertensive pulmonary edema. His physical examination showed rales in both lungs and pansystolic murmur at mitral focus. His medical history included aortic valve replacement (AVR) because of native aortic valve infective endocarditis. Transthoracic echocardiography (TTE) showed normal functional aortic valve. Color flow imaging demonstrated severe mitral regurgitation with posterior eccentric jet. To examine in detail, transesophageal echocardiography (TEE) and three‐dimensional (3D) echocardiography were performed. TEE disclosed a separation in the subaortic curtain leading to severe mitral regurgitation from the left ventricle to the left atrium. In addition to severe mitral regurgitation with posterior eccentric jet, 26‐mm‐long pouch was seen in mitral‐aortic intervalvular fibrosa (MAIVF) at 120° TEE view. This pouch was separated from the mitral anterior leaflet junction releasing the mitral anterior leaflet and causing prolapse and chorda rupture in the A2 scallop of the mitral anterior leaflet. The MAIVF connects the anterior mitral leaflet to the posterior portion of the aortic annulus. The separation of the MAIVF represents a complication of the aortic valve replacement. 相似文献
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《Cor et vasa》2017,59(5):e481-e484
Cardiac myxoma is the most common benign tumor of the heart that occurs in adult population. It can cause several specific and nonspecific symptoms, especially depending on localization and size of the tumor. The disease may take many months and years being unrecognized and asymptomatic. The echocardiography is the golden standard in diagnostic process of cardiac tumors, but in many cases the finding is incidental and the diagnosis is often challenging. We present a case report of the left atrial myxoma manifesting with multiple acute limb ischemia. After urgent thrombectomy and embolectomy a sample of thrombus was sent for histology. The conclusion was the benign tumor of the heart. The coronary catheterization showed two critical stenoses on RIA and chronic occlusion of RCA. The patient was indicated for incomplete revascularization and the extirpation of the cardiac tumor. The patient three months after the surgery is with no signs of tumor on echocardiogram. 相似文献
98.
Incremental benefit of three‐dimensional transthoracic echocardiography in the assessment of left atrial appendage aneurysm leading to severe extrinsic compression of a coronary artery 下载免费PDF全文
Rohit Tandon MD Mohammed J. Arisha MD Navin C. Nanda MD Sooraj Kumar MD Gurpreet S. Wander MD Swetha Srialluri MD Hassan Kamel MD Ahmed Y. Salama MBChB 《Echocardiography (Mount Kisco, N.Y.)》2018,35(5):685-691
Left atrial appendage aneurysm (LAA AN) is a rare disease entity, which can be congenital or acquired in nature. We report an adult patient with LAA AN presenting with anginal chest pain in whom live/real time three‐dimensional transthoracic echocardiography (3DTTE) provided incremental value over the two‐dimensional (2D) technique in providing a more comprehensive assessment of the lesion. A literature review of the salient features of LAA AN is also provided in a tabular form. 相似文献
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Three‐dimensional speckle tracking echocardiography–derived left atrial deformation analysis in acromegaly (Results from the MAGYAR‐Path Study) 下载免费PDF全文