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发布于:2018-12-12 10:47:48  访问:435 次 回复:0 篇
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Employed. The raw information was reconfigured for EnSight visualization (CEI Inc.
One particular normal control topic and 3 subjects with complicated anatomy had been enrolled. For each subject, a 4D flow information set was obtained. Results: Presented are a series of curves that demonstrate differential flow patterns within the 4 enrolled subjects. Figure 1 presents flow within the ascending aorta (AsAo), most important pulmonary artery (MPA), and branch pulmonary arteries (RPA and LPA) inside a standard control. The AsAo and MPA flows are equal, plus the sum from the branch PA flows equal the MPA flow, demonstrating internal consistency. Figure two presents the identical flows in a patient with tetralogy of Fallot and LPA stenosis. Evident is diminished flow in the LPA. Once more, internal consistency is demonstrated with equal AsAo and MPA flows, and also the sum on the branch PA flows equalling the MPA flow. Figure three presents flow in a patient withFigure 4 (abstract P172)Flow profile.Complex flow evaluation in patient with bypass graft for interrupted aortic arch.Web page 219 of(web page number not for citation purposes)Journal of Cardiovascular Magnetic Resonance 2009, 11(Suppl 1)http://The reduction in image quality is significantly greater at systole than jcmr-online.com/supplements/11/Sleft subclavian artery steal. Note is produced of the retrograde flow in the left vertebral artery supplying the left PubMed ID:https://www.ncbi.nlm.nih.gov/pubmed/29069523 subclavian artery. Once more, flows right here are internally constant. Figure 4 presents flow in a patient with interruption of the aorta status post placement of a graft from the AsAo to descending aorta (DsAo). Planes were chosen to resolve flow in the AsAo proximal to the graft, AsAo distal towards the graft, graft itself, and DsAo ahead of and just after the graft. The complex distribution is clearly shown. Conclusion: 4D flow provides fast, precise and total assessment differential blood flow in patients with complicated anatomy and physiology. Navigation inside the 4D flow data set makes it possible for retrospective placement of cut planes with out being hindered by the prospective Mes across all stages of anxiety [baseline (p 0.05), low dose (p prescription of standard 2D flow techniques.duration was 144 ?30 msec. Significant correlations have been located among curvature and pulmonary regurgitation fraction (r = 0.39, p < 0.05), pulmonary regurgitation fraction and RV EDV (r = 0.49, p < 0.01), RV ESV volumes and QRS duration (r = 0.56, p < 0.01) and between QRS duration and RVEF (r = -0.676, p < 0.01). No significant correlations could be found concerning LV function. Conclusion: Patients with Tetralogy of Fallot have dilated right ventricles with impaired function due to pulmonary regurgitation and right bundle branch block leading to paradoxical septal motion. Paradoxical septal motion was seen in all patients with Tetralogy of Fallot. Although in this population with only mildly reduced LV function and mild paradoxical septal motion a correlation between both could not be demonstrated, further research in a more heterogeneous population is warranted.P173 Etiology of diminished left ventricular function in patients with Tetralogy of Fallot by cardiac magnetic resonance David HF Gommans1, Maureen J Van der Vlugt1, Jeroen W Op den Akker2, Erwin S Zegers1 and Arie PJ Van Dijk1 1 Heartlung Centre, Radboud University Medical Centre Nijmegen, Nijmegen, Netherlands 2 Department of Radiology, Radboud University Medical Centre Nijmegen, Nijmegen, NetherlandsJournal PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/26437915 of Cardiovascular Magnetic Resonance 2009, 11(Suppl 1):P173 Introduction: Appropriate ventricul.Employed.
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