Publications by authors named "Xiao-hai Ma"
Background: Trabecular complexity can be quantified by fractal analysis based on cine images of cardiovascular magnetic resonance (CMR), yielding fractal dimension (FD) index. We aimed to investigate the prognostic value of biventricular FD in patients with hypertrophic cardiomyopathy (HCM).
Methods: This retrospective study included 284 (192 men, median age 53 years) patients with HCM who underwent CMR, with median follow-up of 24 months.
Most of the current studies on myocardial strain are mainly applied in patients with sinus rhythm because the image quality of arrhythmias obtained with conventional scanning sequences does not meet diagnostic needs. Here, we intend to assess left ventricular (LV) global myocardial strain in patients with arrhythmias with 3 Tesla magnetic resonance (MR) and a new cine sequence. Thirty-three patients with arrhythmia and forty-eight subjects with sinus rhythm were enrolled in the study.
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- The study aimed to evaluate the effectiveness of a new type of antenna, called intravascular loopless monopole antenna (ILMA), in imaging atherosclerotic plaque using 3.0T MRI in a pig model.
- Researchers created atherosclerosis in 6 pigs through a high fat diet and surgical injury, then performed MR imaging and compared the results with pathological findings after the pigs were euthanized.
- The results indicated high accuracy in measuring vessel dimensions and plaque burden between MRI and pathology, with the highest sensitivity (100%) in detecting calcified plaques, alongside solid overall agreement for other plaque types.
Background: Noninvasive detection of vulnerable plaque has a significant implication for prevention and treatment of atherosclerotic diseases. The aim of this study is to investigate the difference between vulnerable plaques and stable plaques in magnetic resonance (MR) images.
Methods: Atherosclerosis was induced in twenty male New Zealand white rabbits by high cholesterol diet and balloon injury of the abdominal aorta.
Background: With features of high tissue contrast, MRI can be used for the qualitative and quantitative evaluation of atherosclerosis plaques. In this study we investigated the development of atherosclerosis plaque with high resolution 3T MRI in a rabbit model and compared the findings with the histopathological results.
Method: Twenty male New Zealand white rabbits were randomly allocated into an experimental group (n = 16) and a control group (n = 4).
[Clinical application of magnetic resonance in cardiovascular disease].
Zhonghua Xin Xue Guan Bing Za Zhi
November 2008
[A study of neurological complications after coronary artery bypass grafting].
Zhonghua Nei Ke Za Zhi
March 2008
Objective: To prospectively investigate the neurological complications (NC) after off-pump coronary artery bypass grafting (OPCABG), including the kinds of NC and their mobility, risk factors, prevention and treatment.
Methods: A total of 55 consecutive patients with undergoing OPCABG were evaluated from March to June 2006 at the Department of Cardiosurgery in Beijing Anzhen Hospital. Risk factors of NC were collected before operation.