Journal of cardiovascular ultrasound最新文献_第6页

Speckle Tracking of Common Carotid Artery: A New Method for the Evaluation of Mechanical Vascular Function of Atherosclerosis 颈总动脉斑点追踪:一种评估动脉粥样硬化血管机械功能的新方法

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/JCU.2016.24.3.195

Jin-Oh Choi

{"title":"Speckle Tracking of Common Carotid Artery: A New Method for the Evaluation of Mechanical Vascular Function of Atherosclerosis","authors":"Jin-Oh Choi","doi":"10.4250/JCU.2016.24.3.195","DOIUrl":"https://doi.org/10.4250/JCU.2016.24.3.195","url":null,"abstract":"As cardiovascular death remains major cause of death worldwide, there are growing needs for risk evaluation for cardiovascular event. Arterial stiffness, which refers to the rigidity of arterial wall, increases in the elderly person as well as patients with atherosclerotic disease. Based on the belief that increased vascular stiffness precedes atherosclerotic vascular event, there were attempt to measure vascular stiffness. In this regard, carotid-femoral pulse wave velocity (PWV) using tonometry has been proven to be simple, noninvasive measurement of vascular stiffness, as it is inversely related with vascular compliance. Stiff and rigid vessel would transfer pulse wave faster and PWV be higher. On the other hands, carotid intima-media thickness (CIMT) using ultrasound is well correlated with cardiovascular risk and is commonly used as surrogate marker of systemic atherosclerosis. Current advance in automated imaging analysis made it much easier to obtain CIMT in daily clinic and reproducibility of the measurement got even better. Another approach to obtain information about vascular stiffness was ultrasound-based measurement of regional mechanical properties of arterial wall. This method includes the measurement of changes in the dimension of an artery generated by each pulse pressure. From the pressure and diameter measurement, variables regarding vascular stiffness such as distensibility, compliance, elastic modulus index and beta stiffness index can be calculated. More recently, technical advance in speckle tracking method, which originally used for the measurement of ventricular pISSN 1975-4612/ eISSN 2005-9655 Copyright © 2016 Korean Society of Echocardiography www.kse-jcu.org http://dx.doi.org/10.4250/jcu.2016.24.3.195","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"131 1","pages":"195 - 196"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79626622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Echocardiographic Evaluation of the Right Heart 右心超声心动图评价

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/jcu.2016.24.3.183

R. Markley, Asghar Ali, Jonathan Potfay, W. Paulsen, I. Jovin

引用次数: 21

Double-Orifice Tricuspid Valve Visualized by Three-Dimensional Transthoracic Echocardiography 三维经胸超声心动图显示双孔三尖瓣

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/JCU.2016.24.3.253

K. Obase, K. Addetia, Kazue Takahashi, Katsunori Yamamoto, Ai Kawamura, Tomoko Tamada, Koichiro Imai, S. Uemura

{"title":"Double-Orifice Tricuspid Valve Visualized by Three-Dimensional Transthoracic Echocardiography","authors":"K. Obase, K. Addetia, Kazue Takahashi, Katsunori Yamamoto, Ai Kawamura, Tomoko Tamada, Koichiro Imai, S. Uemura","doi":"10.4250/JCU.2016.24.3.253","DOIUrl":"https://doi.org/10.4250/JCU.2016.24.3.253","url":null,"abstract":"A 75-year-old man with atrial fibrillation was hospitalized because of shortness of breath triggered by upper respiratory infection and tachycardia. His symptoms were improved by bed rest and administration of diuretics. Pretreatment echocardiogram reported dilatation of the right ventricle (RV). Follow-up study was performed before discharge. Apical four-chamber view still demonstrated remarkable dilatation of RV (Fig. 1A). In one of the apical four-chamber views, the tricuspid valve showed a bridge-like appearance in systole without valve opening (Fig. 1B and C, Supplementary movie 1). The RV inflow view (Fig. 1D, E, and F, Supplementary movie 2) revealed localized small leaflet defect at posterior septum (Fig. 1D) with the opposing leaflet tip coapting against the RV wall (Fig. 1D). At the anterior side of the \"bridge\", another valve orifice was observed in RV inflow view as well as parasternal short-axis views (Fig. 1G, H, and I, Supplementary movie 3). Color Doppler images in these views showed flow from the RV to right atrium across two orifices (Fig. 1F and I), suggesting double-orifice tricuspid valve.1),2) There was no pressure gradient across both orifices in diastole. Tricuspid regurgitation jet velocity of less than 3 m/s was observed from both orifices in systole. Three-dimensional transthoracic echocardiography clearly visualized double orifices (Fig. 2, Supplementary movie 4) and confirmed the diagnosis.","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"1 1","pages":"253 - 255"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74094087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Diastolic Dyssynchrony in Acute ST Segment Elevation Myocardial Infarction and Relationship with Functional Recovery of Left Ventricle 急性ST段抬高型心肌梗死舒张非同步化与左心室功能恢复的关系

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/jcu.2016.24.3.208

B. Turan, T. Daşlı, A. Erkol, I. Erden, Y. Basaran

{"title":"Diastolic Dyssynchrony in Acute ST Segment Elevation Myocardial Infarction and Relationship with Functional Recovery of Left Ventricle","authors":"B. Turan, T. Daşlı, A. Erkol, I. Erden, Y. Basaran","doi":"10.4250/jcu.2016.24.3.208","DOIUrl":"https://doi.org/10.4250/jcu.2016.24.3.208","url":null,"abstract":"Background Incidence of diastolic dyssynchrony (DD) and its impact on functional recovery of left ventricle (LV) after ST segment elevation myocardial infarction (STEMI) is not known. Methods Consecutive patients with STEMI who underwent successful revascularization were prospectively enrolled. Echocardiography with tissue Doppler imaging was performed within 48 hours of admission and at 6 months. LV end-diastolic volume index (EDVI), end-systolic volume index (ESVI), ejection fraction (EF), and left atrial volume index (LAVI) were calculated. Diastolic delay was calculated from onset of QRS complex to peak of E wave in tissue Doppler image and presented as maximal temporal difference between peak early diastolic velocity of 6 basal segments of LV (TeDiff). Study patients were compared with demographically matched control group. Results Forty eight consecutive patients (55 ± 10 years, 88% male) and 24 controls (56 ± 6 years, 88% male) were included. TeDiff was higher in STEMI than in controls (35.9 ± 19.9 ms vs. 26.3 ± 6.8 ms, p = 0.025). Presence of DD was higher in STEMI than controls (58% vs. 33%, p = 0.046) according to calculated cut-off value (≥ 29 ms). There was no correlation between TeDiff and change in EDVI, ESVI, and LAVI at 6 months, however TeDiff and change in EF at 6 months was positively correlated (r = 0.328, p = 0.023). Patients with baseline DD experienced remodeling less frequently compared to patients without baseline DD (11% vs. 38%, p = 0.040) during follow-up. Conclusion STEMI disrupts diastolic synchronicity of LV. However, DD during acute phase of STEMI is associated with better recovery of LV thereafter. This suggests that DD is associated with peri-infarct stunned myocardium that is salvaged with primary intervention as well as infarct size.","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"83 1","pages":"208 - 214"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73245950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Well-Tolerated and Undiscovered Common Atrium until Late Adulthood 直到成年晚期，良好耐受和未被发现的普通心房

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/jcu.2016.24.3.243

K. Kim, J. Choi, Y. Doo, Y. Yun, Jongwook Kim, Jae Beom Lee

引用次数: 4

Findings of Cardiac Magnetic Resonance Imaging in Hypertrophic Cardiomyopathy after 16 Years 肥厚性心肌病16年后心脏磁共振成像的发现

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/jcu.2016.24.3.239

Gee-Hee Kim, Chul-Min Kim, Bo-Hyun Jang, Hyeong-Han Lee, S. Hong, Sang-hoon Eum, Howook Jeon, D. Moon

引用次数: 1

The Role of Index of Valvular-Arterial Impedance and Systemic Arterial Compliance after Aortic Valve Replacement 主动脉瓣置换术后瓣膜-动脉阻抗指数和全身动脉顺应性的作用

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/jcu.2016.24.3.191

Sung-Ji Park

{"title":"The Role of Index of Valvular-Arterial Impedance and Systemic Arterial Compliance after Aortic Valve Replacement","authors":"Sung-Ji Park","doi":"10.4250/jcu.2016.24.3.191","DOIUrl":"https://doi.org/10.4250/jcu.2016.24.3.191","url":null,"abstract":"Mechanical valvular obstruction and reduced arterial compliance combine to increase left ventricular afterload in patinets with aortic stenosis (AS). As a result of the recognition that valvular and arterial abnormalities both play important roles in determining the overall impedance to left ventricular ejection in AS, it is now clear that standard methods of quantifying valvular stenosis, which focus entirely on the valve itself do not adequately characterize the severity, predict the onset, progression, and magnitude of symptoms, or identify the incidence of subsequent adverse event. The valvuloarterial impedance (Zva) provides an estimate of the global left ventricle (LV) hemodynamic load that results from the summation of the valvular and vascular loads, and the concept is very useful because it incorporates stenosis severity, volume flow rate, body size, and systemic vascular resistance. Moreover, Zva can easily be calculated using Doppler echocardiography from 3 simple measurements, that is, the systemic arterial compliance (SAC) in the LV outflow tract, the transvalvular mean gradient, and systolic arterial pressure, it is superior to the standard indexes of AS severity in predicting LV dysfunction. Zva is the best-suited and most relevant parameter to clinically quantify this “global or total” increase in LV hemodynamic load. There is few data regarding effects of surgical aortic valve replacement (AVR) on Zva and SAC. In patients with AS undergoing transcatheter aortic valve implantation (TAVI), acute declines in Zva were reported. Reductions in Zva observed 1 month after TAVI also were shown to persist during a 2-year follow-up, suggesting that pISSN 1975-4612/ eISSN 2005-9655 Copyright © 2016 Korean Society of Echocardiography www.kse-jcu.org http://dx.doi.org/10.4250/jcu.2016.24.3.191","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"82 1","pages":"191 - 192"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82310725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Clinical Implication of Torsion and Strain Using 2D Speckle Tracking Echocardiagraphy in Congenital and Pediatric Population 利用二维散斑跟踪超声心动图检测先天性和儿童扭转和应变的临床意义

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/jcu.2016.24.3.197

S. Kim

{"title":"Clinical Implication of Torsion and Strain Using 2D Speckle Tracking Echocardiagraphy in Congenital and Pediatric Population","authors":"S. Kim","doi":"10.4250/jcu.2016.24.3.197","DOIUrl":"https://doi.org/10.4250/jcu.2016.24.3.197","url":null,"abstract":"Due to advance of pediatric cardiac surgery during past several centuries, survival started to increase with currently a survival rate into adulthood of many patients born with a congenital heart defect (CHD). Although long-term survival seems promising, follow-up is still complicated in corrected CHD patients characterized by a varying degree of impairment of ventricular performance. Furthermore it is not enough and sometime impossible to evaluate the ventricular function with conventional method in the patients with various morphologic ventricles in these patients. Torsion provides new insight into both systolic and diastolic function compared with conventional methods. Although left ventricular (LV) torsion and strain are important components of LV function in adult population, there are few studies in children and adolescents. In this issue of the Journal, Kim et al., their study using speckle-tracking echocardiography demonstrated the rotation and torsion data in normal children between 2–16 years of the age. They also tried to compare the difference of rotation and torsion between the preschool group and the school group by dividing the patients according to age. As authors mentioned, they could not achieve meaningful difference between two age groups or powerful normal data because of small sample size. However this investigation itself seems to be meaningful attempt in congenital and pediatric cardiologic field. In adult population, there is clear left ventricle twist because of opposite rotational motional motion of base and apex, whereas in children both segments rotate in the same direction but for different amounts and with a longer deformational depISSN 1975-4612/ eISSN 2005-9655 Copyright © 2016 Korean Society of Echocardiography www.kse-jcu.org http://dx.doi.org/10.4250/jcu.2016.24.3.197","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"19 1","pages":"197 - 198"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76485891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Myocardial Rotation and Torsion in Child Growth 儿童生长过程中的心肌旋转和扭转

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/jcu.2016.24.3.223

Chang Sin Kim, Sora Park, L. Eun

{"title":"Myocardial Rotation and Torsion in Child Growth","authors":"Chang Sin Kim, Sora Park, L. Eun","doi":"10.4250/jcu.2016.24.3.223","DOIUrl":"https://doi.org/10.4250/jcu.2016.24.3.223","url":null,"abstract":"Background The speckle tracking echocardiography can benefit to assess the regional myocardial deformations. Although, previous reports suggested no significant change in left ventricular (LV) torsion with aging, there are certain differences in LV rotation at the base and apex. The purpose of this study was to evaluate the change and relationship of LV rotation for torsion with aging in children. Methods Forty healthy children were recruited and divided into two groups of twenty based on whether the children were preschool-age (2–6 years of age) or school-age (7–12 years of age). After obtaining conventional echocardiographic data, apical and basal short axis rotation were assessed with speckle tracking echocardiography. LV rotation in the basal and apical short axis planes was determined using six myocardial segments along the central axis. Results Apical and basal LV rotation did not show the statistical difference with increased age between preschool- and school-age children. Apical radial strain showed significant higher values in preschool-age children, especially at the anterior (52.8 ± 17.4% vs. 34.7 ± 23.2%, p < 0.02), lateral (55.8 ± 20.4% vs. 36.1 ± 22.7%, p < 0.02), and posterior segments (57.1 ± 17.6% vs. 38.5 ± 21.7%, p < 0.01). The torsion values did not demonstrate the statistical difference between two groups. Conclusion This study revealed the tendency of higher rotation values in preschool-age children than in school-age children. The lesser values of rotation and torsion with increased age during childhood warrant further investigation.","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"42 1","pages":"223 - 228"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87282255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Left Ventricular Diastolic Dyssynchrony in Post-Myocardial Infarction Patients: Does It Predict Future Left Ventricular Remodeling? 心肌梗死后患者左室舒张不同步:它能预测未来左室重构吗?

Journal of cardiovascular ultrasound Pub Date : 2016-09-01 DOI: 10.4250/jcu.2016.24.3.193

Ju-Hee Lee

{"title":"Left Ventricular Diastolic Dyssynchrony in Post-Myocardial Infarction Patients: Does It Predict Future Left Ventricular Remodeling?","authors":"Ju-Hee Lee","doi":"10.4250/jcu.2016.24.3.193","DOIUrl":"https://doi.org/10.4250/jcu.2016.24.3.193","url":null,"abstract":"Left ventricular (LV) remodeling is well-known complication after myocardial infarction (MI) and numerous studies have emphasized the clinical importance of ventricular remodeling. In these literatures, progressive LV dilatation and decreased LV ejection fraction were major determinants in future development of heart failure and long term survival. That is why early recognition of patients at risk for LV remodeling after MI has vital importance and identification of the predictive markers for developing ventricular remodeling is clinically meaningful. While the clinical importance of LV mechanical dyssynchrony is mainly described in heart failure patients, its significance in patients with MI was less well established. Actually, ventricular dyssynchrony is not uncommon in post-MI patients even with narrow QRS complexes. Zhang et al. and Fahmy Elnoamany et al. noted LV systolic dyssynchrony early after MI in 69.8% and 77.5% of the patients and it was mainly determined by the initial infarct size. After that, various parameters from tissue Doppler imaging and speckletracking technique have been used for detecting regional contraction and relaxation abnormalities and LV systolic and diastolic dyssynchrony early after MI. Several studies demonstrated that LV systolic dyssynchrony in post-MI patients is closely related with future LV remodeling and poor prognosis. Mollema et al. showed that patients with more extensive LV dyssynchrony at baseline have larger LV end systolic volume after 6 months of follow up and increased risk of LV remodeling. Similar results were showed by Zhang et al. that LV systolic dyssynchrony increased with worsening LV pISSN 1975-4612/ eISSN 2005-9655 Copyright © 2016 Korean Society of Echocardiography www.kse-jcu.org http://dx.doi.org/10.4250/jcu.2016.24.3.193","PeriodicalId":88913,"journal":{"name":"Journal of cardiovascular ultrasound","volume":"40 1","pages":"193 - 194"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84810145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5