INVESTIGATING THE POTENTIAL OF ACOUSTIC RESONANCE TO ESTIMATE LEFT VENTRICULAR VOLUME

机译：调查声学共振的潜力，以估计左心室体积

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Irreversible long-term damage in patients suffering from cardiac disease could often be prevented with a timely intervention, provided that a decline in health status is noticed early. Measurement of left-ventricular (LV) volume is one possibility for monitoring the health status and could be done continuously if integrated in an implantable device i.e., pacemakers or blood pumps. Acoustic resonance is proposed as a measurement method for LV volume that is expected to be independent of the positioning of the sensor. We explore the potential of a resonant acoustic method with a pressure acoustic simulation. Two sets of simulations of extreme cases were carried out: the heart was 1) surrounded by air and 2) embedded in the thorax. The idealized heart was modelled as a blood-filled sphere surrounded by myocardium, pericardial fluid and embedded in an entirely muscular, cylindrical thorax. A pressure source excited the heart at LV volumes of 195 ±25% and ±50%. The independence of positioning was confirmed. The resonance frequency turns out to be sensitive to LV volume if surrounded by air (31 Hz/mL), but not as pronounced if embedded in the thorax (0.055 Hz/mL). Given the low sensitivity of the resonant acoustic method, future experiments focused on technical feasibility should be aimed at assessing the influence of lung parenchyma and noise.

机译：如果早期干预，通常可以防止患有心脏病的患者的不可逆的长期损伤，因为早期健康状况下降。左心室（LV）的体积的测量是用于监视健康状况的一个可能性，并且如果集成在可植入装置，即，起搏器或血泵可以连续进行。提出了声谐振作为LV体积的测量方法，其预期与传感器的定位无关。我们探讨了具有压力声学模拟的谐振声学方法的潜力。两组极端案例的模拟进行：由空气和2）包围的心为1）嵌入胸部。理想的心脏被模拟为被心肌，心包液体，心包液体包围的血液填充球体，并嵌入完全肌肉圆柱形胸腔内。压力源激发195±25％和±50％的LV体积的心脏。确认定位的独立性。如果被空气（31Hz / ml）包围，并且如果嵌入胸部（0.055Hz / ml），则共振频率将对LV体积敏感。鉴于谐振声学方法的低灵敏度，未来的实验旨在评估肺实质和噪声的影响。

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《International Congress on Sound and Vibration》|2019年|1304-1988p|共8页
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Seraina Anne Dual; Roland Dreyfus; Cosmin Ioan Roman; Richard Wampler; Mirko Meboldt; Marianne Schmid Daners;
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中图分类 TB53-53;
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Acoustics; Cardiac volume; Heart-assist devices; Hemodynamic monitoring;

机译：声学;心脏体积;心脏辅助装置;血液动力学监测;

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1. Diagnostic Value of Three-Dimensional Contrast-Enhanced Echocardiography for Left Ventricular Volume and Ejection Fraction Measurement in Patients With Poor Acoustic Windows: A Comparison of Echocardiography and Magnetic Resonance Imaging [J] . Saloux Eric, Labombarda Fabien, Pellissier Arnaud, Journal of the American Society of Echocardiography: official publication of the American Society of Echocardiography . 2014,第10期

机译：三维造影增强超声心动图对声学窗差的左心室容积和射血分数测量的诊断价值：超声心动图和磁共振成像的比较
2. Early Myocardial Strain Changes During Potentially Cardiotoxic Chemotherapy May Occur as a Result of Reductions in Left Ventricular End-Diastolic Volume The Need to Interpret Left Ventricular Strain With Volumes [J] . Jordan Jennifer H., Sukpraphrute Bunyapon, Melendez Giselle C., Circulation: An Official Journal of the American Heart Association . 2017,第25期

机译：由于左心室舒张型舒张体积减少，可能发生在潜在的心毒性化学疗法期间的早期心肌菌株变化可能需要用容量解释左心室菌株
3. Do whole body impedance cardiography estimates of left ventricular structure, volumes and function correlate with the gold standard of cardiac magnetic resonance imaging? [J] . Mariam Narous, Eric Yee, Karen Cowan, Journal of cardiovascular magnetic resonance : . 2016,第S1期

机译：全身阻抗心动图对左心室结构，体积和功能的估计是否与心脏磁共振成像的金标准相关？
4. INVESTIGATING THE POTENTIAL OF ACOUSTIC RESONANCE TO ESTIMATE LEFT VENTRICULAR VOLUME [C] . Seraina Anne Dual, Roland Dreyfus, Cosmin Ioan Roman, International Congress on Sound and Vibration . 2019

机译：调查声学共振的潜力，以估计左心室体积
5. Advanced magnetic resonance imaging of extracellular volume for guiding left ventricular assist device therapy. [D] . Hong, KyungPyo. 2016

机译：细胞外体积的高级磁共振成像，可指导左心室辅助设备治疗。
6. Do whole body impedance cardiography estimates of left ventricular structure volumes and function correlate with the gold standard of cardiac magnetic resonance imaging? [O] . Mariam Narous, Eric Yee, Karen Cowan, 2016

机译：全身阻抗心动图对左心室结构体积和功能的估计是否与心脏磁共振成像的金标准相关？
7. MODERATED EPOSTERS1385Longitudinal strain assessment in dilated cardiomyopathy patients using a novel accelerated DENSE sequence1407Simultaneous T1 and T2 cardiac quantification with CABIRIA: initial clinical experience1423Head-to-head comparison of acceleration algorithms in 4-dimensional flow CMR1502Left ventricular function and size evaluated by hybrid cardiac positron emission tomography-magnetic resonance: Intraindividual comparison of left ventricular ejection fraction and ventricular volumes derived by two modalities1510Left Atrium assessed by Cardiovascular Magnetic Resonance at 1.5 and 3 Tesla – age and gender effects1514Comparison of Free Breathing Cardiac MRI Radial technique to the Standard Multi breath-hold cine SSFP CMR technique for the assessment of LV Volumes and Function1536Self-navigated free-breathing isotropic 3D whole heart phase sensitive inversion recovery magnetic resonance without navigator for detection of myocardial infarction1547Assessment of Right Ventricular Strain Using Myocardial Deformation Recovery Semi Automated Technique: Initial Experience and Normal Values1586Tissue tracking myocardial deformation analysis and prediction of left ventricular remodeling in acute myocardial infarction1589Investigating strategies for optimal 31P MRS clinical cardiac at 3T: Initial Results1620Quantitative Criteria for the Diagnosis of the Congenital Absence of Pericardium by Cardiac Magnetic Resonance1632Widespread tissue injury during acute myocardial infarction: evidence from advanced CMR relaxometry1322Computed tomography coronary angiography verSus sTRess cArdiac magneTic rEsonance for the manaGement of sYmptomatic revascularized patients: a cost effectiveness study (STRATEGY study)1339Comparison of low- versus high-dose of gadobutrol for late gadolinium enhancement imaging at 1.5 Tesla: a clinical feasibility study1347Multi-parametric Cardiac Magnetic Resonance for Prediction of Cardiac Complications in Thalassemia Intermedia: a Prospective Multicenter Study1461Prognostic value of Cardiovascular Magnetic Resonance derived indexes of myocardial fibrosis in heart transplant recipients1523The role of CMR in the acute phase of hospitalization: changing paradigms1542Preoperative CMR-based score predict ventricular response after surgical left ventricular reconstruction in ischemic heart failure patients1555Excellent response rate to cardiac resynchronization therapy guided with magnetic resonance imaging1626The ECG as a predictor of arrhythmogenic substrate on Cardiac Magnetic Resonance Imaging in patients undergoing ablation for premature ventricular contractions1649Comparison of T1-mapping at 3.0T CMR and angiographic APPROACH score for area at risk assessment in ST-segment elevation myocardial infarction1340Pathological correlates of left bundle branch disease in patients with non-ischemic cardiomyopathy: a cardiovascular magnetic resonance study1342Myocardial remodelling and fibrosis in nonischaemic dilated cardiomyopathy: insights from cardiovascular magnetic resonance1411The association between fibrosis and contractile dysfunction in hypertrophic cardiomyopathy assessed by cardiovascular magnetic resonance1622Persistent myocardial inflammation due to intramyocardial haemorrhage in reperfused STEMI as a precursor to adverse LV remodelling - insights from multi-parametric mapping1566Semiquantitative analysis of low and high b value DWI for detecting myocardial edema in acute myocarditis1567Value of Cardiac MRI In Detecting Coronary Artery Disease In Newly Diagnosed Systolic Dysfunction1570Usefulness of cardiac magnetic resonance in tuberous sclerosis complex1578Papillary muscles offer further insight into hypertrophied hearts: a cardiovascular magnetic resonance study1627Diagnostic and clinical implications of CMR timing (early versus late) in patients with troponin positive acute coronary syndromes and unobstructed coronary arteries: Table 1. [O] . Upasana Tayal, Alexandros Kallifatidis, P. Garg, 2016

机译：在使用新的扩张型心肌病的患者缓和EPOSTERS1385Longitudinal应变评估加速DENSE sequence1407Simultaneous T1和T2与CABIRIA心脏定量：在4维流动的加速算法初始临床experience1423Head对头比较CMR1502Left心室功能和尺寸由混合心脏正电子发射断层摄影术评价 - 磁性共振：由两个modalities1510Left庭派生左室射血分数和心室体积的个体间的比较，在1.5和3特斯拉评估心血管磁共振 - 免费的年龄和性别effects1514Comparison呼吸心脏MRI径向技术标准的多屏气电影SSFP CMR技术的LV卷和Function1536Self-导航自由呼吸各向同性3D整个心脏相位敏感反转恢复磁共振导航仪没有检测右Ventricu心肌infarction1547Assessment的评估拉尔菌株使用心肌变形恢复半自动技术：初步经验和正常Values1586Tissue跟踪心肌变形分析和预测左室重构急性心肌infarction1589Investigating策略优化31P MRS临床心脏在3T：初始Results1620Quantitative标准的先天缺失的诊断心包心脏磁Resonance1632Widespread组织损伤急性心肌梗死时：证据先进CMR relaxometry1322Computed CT冠状动脉成像与压力心脏磁共振对症的管理吻合血管患者：成本效益研究（战略研究）1339Comparison低与高剂量钆布醇在1.5特斯拉晚钆增强成像的临床可行性，在中间型地贫心脏并发症的预测study1347Multi参数心脏核磁共振的前瞻性德穆尔心血管磁共振的ticenter Study1461Prognostic价值衍生心肌纤维化指标在住院的急性期CMR的心脏移植recipients1523The作用：改变基于CMR-paradigms1542Preoperative比分预测缺血性心脏衰竭patients1555Excellent响应速度外科左心室重建心脏再同步化后心室反应治疗与磁共振imaging1626The ECG导引作为心脏磁共振成像致心律失常性基板的在ST段抬高心肌infarction1340Pathological在风险评估经历在3.0T CMR T1映射的室性早搏contractions1649Comparison和血管造影APPROACH分数区域消融患者的预测左束支传导疾病的患者与非缺血性心肌病相关因素：心血管磁共振study1342Myocardial重塑和纤维化nonischaemic扩张型心肌病：在从在由心血管磁性resonance1622Persistent心肌炎症评估肥厚型心肌病的纤维化和收缩功能障碍之间心血管磁性resonance1411The协会由于心肌内出血景点在再灌注STEMI为先导，以不利的LV重塑 - 从低的多参数mapping1566Semiquantitative分析和高的b值DWI的见解为在心脏MRI检测冠状动脉疾病急性myocarditis1567Value在结节性硬化症complex1578Papillary肌肉初诊收缩期Dysfunction1570Usefulness心脏磁共振检测心肌水肿提供进一步的深入了解肥大心脏：心血管磁共振study1627Diagnostic和CMR定时的临床意义（早期与晚）患者肌钙蛋白阳性的急性冠脉综合征和通畅的冠状动脉：表1。

INVESTIGATING THE POTENTIAL OF ACOUSTIC RESONANCE TO ESTIMATE LEFT VENTRICULAR VOLUME

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