通过注射对交感神经突触前去甲肾上腺素再摄取过程有高度亲和力的同位素示踪剂,SPECT或PET技术可以观测心脏交感神经的功能情况,一项研究指出心脏和纵膈摄取此类示踪剂的比例异常,与自发性持续室性心动过速、成功复苏的心脏骤停以及不适合的ICD放电...
Single-photon emission computed tomography (SPECT), cardiac magnetic resonance (CMR) and positron emission tomography (PET) perfusion imaging are increasingly applied for the detection for the detection of ischemia. Early detection of ischemia is may contribute to lowering the morbidity and mortality in...
SPINS研究证实了肥胖体型并不会影响负荷CMR的诊断及预后效能,而负荷CMR提示缺血或LGE则与发生心血管事件存在密切联系。不同于SPECT和负荷超声心动会受到肥胖体型的影响和限制,负荷CMR可提供有关心室功能、诱导缺血和既往发生梗死的准确信息。该研究扩展了既往研究的结果,更好证明了CMR检测出阴性结果的长期预后价值。 但该...
大型前瞻性单中心研究CE-MARC和多中心研究(MR-IMPACT及MR-IMPACT Ⅱ)也表明,灌注负荷CMR具有很高的诊断准确性,且不劣于单光子发射计算机断层扫描(SPECT)。虽然灌注负荷CMR和钆延迟强化(LGE)成像在多个国际指南中被提及,但当前研究之前,含钆造影剂(GBCAs)在美国还没有被批准用于灌注负荷CMR和LGE来诊断冠状动脉疾病(...
ASCVD表示动脉粥样硬化心血管疾病;CAD表示冠状动脉疾病;CAC表示冠状动脉钙化;CCTA表示冠状动脉CT血管造影;CMR表示心血管磁共振;ETT表示运动耐量试验;LV表示左心室;MPI表示心肌灌注成像;PET表示正电子发射断层扫描;SPECT表示单光子发射计算...
将CMR的EF值视为"金标准",用Bland-Altman法 判断其与以上6组EF值的偏倚情况.结果 IQ-SPECT 使用的子集和迭代次数增大时,舒张末期及收缩末 期容积会升高,而射血分数呈减低趋势;3子集10迭 代时测得的EF值和CMR的结果最趋近,偏倚程度仅 2.6%. 结论 一定范围内重建参数的增加,会使EDV 及ESV升高,EF反之;此次...
SPECTPerfusionCoronary artery diseaseRelational knowledge of 21 derivational suffixes was investigated with 120 children (grades 3-8) and 40 adults. Results obtained from a nonsense-word model indicated that suffixes were comprehended with greater accuracy than they were produced, particularly by the ...
和基质瘤细胞在一个警犬使用spect和《公路货运公约》的模式 翻译结果5复制译文编辑译文朗读译文返回顶部 并且stromal细胞使用SPECT和CMR在一个似犬模型 相关内容 aalso exists to reduce CO2 emissions per traffic unit in aviation by 40-50% by 2020, through fuselage 在航空也存在减少二氧化碳排放每个交通单位按40...
routine single photon emission computed tomography (SPECT) perfu-sion imaging for detection of subendocardial myocardial infarcts: an imaging study. Lancet. 2003;361:374–9. 50. Mahrholdt H, Wagner A, Judd RM, Sechtem U, Kim RJ. Delayed enhancement cardiovascular magnetic resonance assessment ...
mmons. org/ publi cdoma in/ zero/1. 0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. Journal of Cardiovascular Magnetic Resonance Cardiovascular magnetic resonance foruni00A0evaluation ofuni00A0cardiac involvement ...