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a.1.(Anat.) Situated under the endocardium.
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Furthermore, the delayed contrast-enhanced images of cardiac magnetic resonance imaging have shown normal washout in the subendocardial lesion area in patients with Kounis syndrome, type I variant (75).
2DE LVEF is considered to reflect the circumferential and radial function but not the longitudinal movement, which is influenced by the motion of subendocardial libers, which is most susceptible to evident myocardial damage (15).
William et al have shown in their study that the specificity of the ETT decreases with resting ST-segment depression (48 +- 12% versus 84 +- 3%)15, because of inclusion of more false positive test results sever systemic hypertension may interferewith the subendocardial perfusion and may lead to ST-segment depression even in the absence of atherosclerosis, thus resulting in false positive test results15.
Common principal diagnoses for all-cause admissions include septicemia, pneumonia, kidney failure, subendocardial infarction, and osteoarthrosis of the leg.
The anterolateral and posterior portions of the left ventricular free wall showed foci of subendocardial necrosis and fibrosis.
ECG criteria are: ST segment elevation in aVR [greater than or equal to] 1 mm, ST segment elevation in aVR [greater than or equal to] V1, and diffuse ST segment depression in lateral leads (subendocardial ischemia) [16] (Figure 2).
Abnormal subendocardial perfusion in cardiac syndrome X detected by cardiovascular magnetic resonance imaging.
Heart, transmural section of the right ventricular free wall showing a diffuse, indiscrete band of pallor on the subendocardial myocardium (right side).
Additional CMR features such as endocardial T2 signaling, early and delayed enhancement imaging of the subendocardial layer provide information regarding function and fibrosis of the affected segments and can, thus, help in identifying areas of arrythmogenic activity or presence of apical LV clots.9While the CMR provides a crisp image quality with high spatial resolution, its use is limited because of its limited availability and prolonged image acquisition time.
Although areas of decreased subendocardial enhancement of the myocardium can be seen on CTA exams, these findings may not be appreciated depending on the timing of the contrast bolus and the lack of ECG-gating.
Mancini et al., "Multi-Contrast Delayed Enhancement (MCODE) improves detection of subendocardial myocardial infarction by late gadolinium enhancement cardiovascular magnetic resonance: a clinical validation study," Journal of Cardiovascular Magnetic Resonance, vol.
The histological structure of subaortic membranes is characterized by stack-like layers of fibroelastic tissue with underlying bundles of smooth muscle cells towards the subendocardial region [14], which is different from the observed histological composition of the above-described valve-like structures.