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Cardiovascular Ultrasound

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https://www.readbyqxmd.com/read/29580287/how-i-do-it-feasibility-of-a-new-ultrasound-probe-fixator-to-facilitate-high-quality-stress-echocardiography
#1
O A E Salden, W M van Everdingen, R Spee, P A Doevendans, M J Cramer
BACKGROUND: Stress echocardiography (SE) has recently regained momentum as an important diagnostic tool for the assessment of both ischemic and non-ischemic heart disease. Performing SE during physical exercise is challenging due to a suboptimal patient position and vigorous movements of the patient's chest. This hampers a stable ultrasound position and reduces the diagnostic performance of SE. A stable ultrasound probe position would facilitate producing high quality images during continuous measurements...
March 27, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29523135/post-operative-left-atrial-volume-index-is-a-predictor-of-the-occurrence-of-permanent-atrial-fibrillation-after-mitral-valve-surgery-in-patients-who-undergo-mitral-valve-surgery
#2
Min-Kyung Kang, Boyoung Joung, Chi Young Shim, In Jeong Cho, Woo-In Yang, Jeonggeun Moon, Yangsoo Jang, Namsik Chung, Byung-Chul Chang, Jong-Won Ha
BACKGROUND: Atrial fibrillation (AF) can occur even after the correction of mitral valve (MV) pathology in patients who have pre-operative sinus rhythm and undergo MV surgery. However, the factors associated with the occurrence of AF after MV surgery are still unclear. The aim of this retrospective study was to investigate the factors determining the occurrence of permanent AF after MV surgery in patients with preoperative sinus rhythm who underwent MV surgery. METHODS: Four hundred and forty-two patients (mean age 46 ± 12, 190 men) who underwent MV surgery and sinus rhythm were investigated retrospectively...
March 9, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29458381/cardiac-fluid-dynamics-meets-deformation-imaging
#3
REVIEW
Matteo Dal Ferro, Davide Stolfo, Valerio De Paris, Pierluigi Lesizza, Renata Korcova, Dario Collia, Giovanni Tonti, Gianfranco Sinagra, Gianni Pedrizzetti
Cardiac function is about creating and sustaining blood in motion. This is achieved through a proper sequence of myocardial deformation whose final goal is that of creating flow. Deformation imaging provided valuable contributions to understanding cardiac mechanics; more recently, several studies evidenced the existence of an intimate relationship between cardiac function and intra-ventricular fluid dynamics. This paper summarizes the recent advances in cardiac flow evaluations, highlighting its relationship with heart wall mechanics assessed through the newest techniques of deformation imaging and finally providing an opinion of the most promising clinical perspectives of this emerging field...
February 20, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29402323/equivocal-tests-after-contrast-stress-echocardiography-compared-with-invasive-coronary-angiography-or-with-ct-angiography-ct-calcium-score-in-mildly-positive-tests-may-spare-unnecessary-coronary-angiograms
#4
Nicola Gaibazzi, Guido Pastorini, Andrea Biagi, Francesco Tafuni, Claudia Buffa, Silvia Garibaldi, Francesca Boffetti, Giorgio Benatti
BACKGROUND: Imaging stress tests are not ideally accurate to predict anatomically obstructive CAD, leading to a non-trivial rate of unnecessary iCA. This may depend on the threshold used to indicate iCA, and maybe CTA or, one step earlier, CT calcium score could spare most unnecessary iCA in only mildly positive cSE. We assessed the diagnostic accuracy of contrast stress-echocardiography (cSE) in comparison with invasive coronary angiography (iCA), and CT angiography (CTA) only in case of equivocal tests, to find hints helping reduce falsely positive cSE in the suspicion of coronary artery disease (CAD)...
February 6, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29357888/realization-of-fully-automated-quantification-of-left-ventricular-volumes-and-systolic-function-using-transthoracic-3d-echocardiography
#5
Lina Sun, Haiyan Feng, Lujia Ni, Hui Wang, Dongmei Gao
BACKGROUND: Study on automated three-dimensional (3D) quantification of left heart parameters by using Heartmodel software is still in the early stage and fully automatic analysis was not clearly achieved. The aim of our study was to evaluate the performance of this new technology in measuring left ventricular (LV) volume and ejection fraction (EF) in patients with a variety of heart diseases on the basis of rationally determining the default endocardial border values. METHODS: Subjects with a variety of heart diseases were included prospectively...
January 23, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29310672/3d-vena-contracta-area-after-mitraclip%C3%A2-procedure-precise-quantification-of-residual-mitral-regurgitation-and-identification-of-prognostic-information
#6
Alexander Dietl, Christine Prieschenk, Franziska Eckert, Christoph Birner, Andreas Luchner, Lars S Maier, Stefan Buchner
BACKGROUND: Percutaneous mitral valve repair (PMVR) is increasingly performed in patients with severe mitral regurgitation (MR). Post-procedural MR grading is challenging and an unsettled issue. We hypothesised that the direct planimetry of vena contracta area (VCA) by 3D-transoesophageal echocardiography allows quantifying post-procedural MR and implies further prognostic relevance missed by the usual ordinal scale (grade I-IV). METHODS: Based on a single-centre PMVR registry containing 102 patients, the association of VCA reduction and patients' functional capacity measured as six-minute walk distance (6 MW) was evaluated...
January 9, 2018: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29241451/energetic-performance-analysis-of-staged-palliative-surgery-in-tricuspid-atresia-using-vector-flow-mapping
#7
Mao Kinoshita, Koichi Akiyama, Keiichi Itatani, Ayahiro Yamashita, Maki Ishii, Atsushi Kainuma, Yoshinobu Maeda, Takako Miyazaki, Masaaki Yamagishi, Teiji Sawa
BACKGROUND: Staged palliative surgery markedly shifts the balance of volume load on a single ventricle and pulmonary vascular bed. Blalock-Taussig shunt necessitates a single ventricle eject blood to both the systemic and pulmonary circulation. On the contrary, bidirectional cavopulmonary shunt release the single ventricle from pulmonary circulation. CASE PRESENTATION: We report a case of tricuspid atresia patient who underwent first palliative surgery and second palliative surgery...
December 14, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29187206/multi-modality-imaging-evaluation-of-recurrent-tako-tsubo-syndrome-in-a-patient-with-coronary-artery-fibromuscular-dysplasia
#8
Yun Cheng, Chenying Lu, Kan Liu
BACKGROUND: Integrated bedside and sophisticated cardiac imaging techniques help characterize the discrepancy between myocardial injury and mechanic dysfunction in acute myocardial infarction. CASE PRESENTATION: A 57 year-old woman presented with sudden onset chest pain and ventricular fibrillation after hearing of her brother's death. The electrocardiography indicated "anterior wall ST segment elevation myocardial infarction". Coronary angiography ruled out obstructive lesion in the major coronary arteries, but revealed fibromuscular dysplasia of the distal left anterior descending artery...
November 30, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29047378/comparison-of-strain-parameters-in-dyssynchronous-heart-failure-between-speckle-tracking-echocardiography-vendor-systems
#9
Wouter M van Everdingen, Alexander H Maass, Kevin Vernooy, Mathias Meine, Cornelis P Allaart, Frederik J De Lange, Arco J Teske, Bastiaan Geelhoed, Michiel Rienstra, Isabelle C Van Gelder, Marc A Vos, Maarten J Cramer
BACKGROUND: Although mechanical dyssynchrony parameters derived by speckle tracking echocardiography (STE) may predict response to cardiac resynchronization therapy (CRT), comparability of parameters derived with different STE vendors is unknown. METHODS: In the MARC study, echocardiographic images of heart failure patients obtained before CRT implantation were prospectively analysed with vendor specific STE software (GE EchoPac and Philips QLAB) and vendor-independent software (TomTec 2DCPA)...
October 18, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28903763/troponin-as-ischemic-biomarker-is-related-with-all-three-echocardiographic-risk-factors-for-sudden-death-in-hypertrophic-cardiomyopathy-esc-guidelines-2014
#10
Rafał Hładij, Renata Rajtar-Salwa, Paweł Petkow Dimitrow
BACKGROUND: Sudden cardiac death (SCD) risk stratification is the most important preventive action in patients with hypertrophic cardiomyopathy (HCM). The identification of the ischemia biomarker high sensitive troponin I (hs-TnI) role for this arrhythmic disease may provide additional information for SCD risk stratification. The aim of the study was to compare echocardiographic parameters (prognostic for risk stratification of SCD in HCM) among two subgroups of HCM patients: with elevated hs-TnI versus non-elevated hs-TnI level...
September 13, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28903756/could-the-use-of-bedside-lung-ultrasound-reduce-the-number-of-chest-x-rays-in-the-intensive-care-unit
#11
Etrusca Brogi, Elena Bignami, Anna Sidoti, Mohammed Shawar, Luna Gargani, Luigi Vetrugno, Giovanni Volpicelli, Francesco Forfori
BACKGROUND: Lung ultrasound can be used as an alternative to chest radiography (CXR) for the diagnosis and follow-up of various lung diseases in the intensive care unit (ICU). Our aim was to evaluate the influence that introducing a routine daily use of lung ultrasound in critically ill patients may have on the number of CXRs and as a consequence, on medical costs and radiation exposure. METHODS: Data were collected by conducting a retrospective evaluation of the medical records of adult patients who needed thoracic imaging and were admitted to our academic polyvalent ICU...
September 13, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28899401/the-impact-of-preload-on-3-dimensional-deformation-parameters-principal-strain-twist-and-torsion
#12
Hyo-Suk Ahn, Yong-Kyun Kim, Ho Chul Song, Euy Jin Choi, Gee-Hee Kim, Jung Sun Cho, Sang-Hyun Ihm, Hee-Yeol Kim, Chan Seok Park, Ho-Joong Youn
BACKGROUND: Strain analysis is feasible using three-dimensional (3D) echocardiography. This approach provides various parameters based on speckle tracking analysis from one full-volume image of the left ventricle; however, evidence for its volume independence is still lacking. METHODS: Fifty-eight subjects who were examined by transthoracic echocardiography immediately before and after hemodialysis (HD) were enrolled. Real-time full-volume 3D echocardiographic images were acquired and analyzed using dedicated software...
September 12, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28893266/myocardial-performance-index-in-female-athletes
#13
Zahraa Alsafi, Andreas Malmgren, Petri Gudmundsson, Martin Stagmo, Magnus Dencker
BACKGROUND: Long-term intensive training leads to morphological and mechanical changes in the heart generally known as "athlete's heart". Previous studies have suggested that the diastolic and systolic function of the ventricles is unaltered in athletes compared to sedentary. The purpose of this study was to investigate myocardial performance index (MPI) by pulsed wave Doppler (PWD) and by tissue Doppler imaging (TDI) in female elite athletes compared to sedentary controls. METHODS: The study consisted of 32 athletes (mean age 20 ± 2 years) and 34 sedentary controls (mean age 23 ± 2 years)...
September 11, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28893257/preoperative-single-ventricle-function-determines-early-outcome-after-second-stage-palliation-of-single-ventricle-heart
#14
Jacek Pająk, Michał Buczyński, Piotr Stanek, Grzegorz Zalewski, Marek Wites, Lesław Szydłowski, Bogusław Mazurek, Lidia Tomkiewicz-Pająk
BACKGROUND: Second-stage palliation with hemi-Fontan or bidirectional Glenn procedures has improved the outcomes of patients treated for single-ventricle heart disease. The aim of this study was to retrospectively analyze risk factors for death after second-stage palliation of single-ventricle heart and to compare therapeutic results achieved with the hemi-Fontan and bidirectional Glenn procedures. MATERIAL AND METHODS: We analyzed 60 patients who had undergone second-stage palliation for single-ventricle heart...
September 11, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28738808/carotid-plaque-rather-than-intima-media-thickness-as-a-predictor-of-recurrent-vascular-events-in-patients-with-acute-ischemic-stroke
#15
Hyun Ju Yoon, Kye Hun Kim, Hyukjin Park, Jae Yeong Cho, Young Joon Hong, Hyung Wook Park, Ju Han Kim, Youngkeun Ahn, Myung Ho Jeong, Jeong Gwan Cho, Jong Chun Park
BACKGROUND: To investigate the impacts of carotid plaque and intima-media thickness (IMT) on future vascular events (VEs) in the patients with acute ischemic stroke. METHODS: A total of 479 consecutive Korean patients with acute ischemic stroke were divided into 2 groups according to development of VEs; VE group (65.4 ± 10.9 years) vs no VE group (62.8 ± 13.2 years). VEs were defined as the development of recurrent stroke, coronary events, peripheral arterial disease, and death...
July 24, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28673293/left-ventricular-outflow-tract-velocity-time-integral-outperforms-ejection-fraction-and-doppler-derived-cardiac-output-for-predicting-outcomes-in-a-select-advanced-heart-failure-cohort
#16
Christina Tan, David Rubenson, Ajay Srivastava, Rajeev Mohan, Michael R Smith, Kristen Billick, Samuel Bardarian, J Thomas Heywood
BACKGROUND: Left ventricular outflow tract velocity time integral (LVOT VTI) is a measure of cardiac systolic function and cardiac output. Heart failure patients with low cardiac output are known to have poor cardiovascular outcomes. Thus, extremely low LVOT VTI may predict heart failure patients at highest risk for mortality. METHODS: Patients with heart failure and extremely low LVOT VTI were identified from a single-center database. Baseline characteristics and heart failure related clinical outcomes (death, LVAD) were obtained at 12 months...
July 3, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28645293/prenatal-screening-of-fetal-ventriculoarterial-connections-benefits-of-4d-technique-in-fetal-heart-imaging
#17
Yu Wang, Miao Fan, Faiza Amber Siddiqui, Meilian Wang, Wei Sun, Xue Sun, Wenjia Lei, Ying Zhang
BACKGROUND: Identification of prenatal ventriculoarterial connections in fetuses with conotruncal anomalies (CTA) remains one of the greatest challenges for sonographers performing screening examinations. Herein, we propose a novel protocol of 4D volume analysis that identifies ventriculoarterial connections and evaluate its clinical utility in routine screenings. METHODS: Twenty-nine cases of transposition of the great arteries (TGA), 22 cases of double-outlet right ventricle (DORV), 36 cases of tetralogy of Fallot (TOF), 14 cases of truncus arteriosus (TCA), and randomly selected 70 normal fetuses were reviewed in this study...
June 23, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28629375/diagnostic-performance-of-multi-organ-ultrasound-with-pocket-sized-device-in-the-management-of-acute-dyspnea
#18
Alfonso Sforza, Costantino Mancusi, Maria Viviana Carlino, Agostino Buonauro, Marco Barozzi, Giuseppe Romano, Sossio Serra, Giovanni de Simone
BACKGROUND: The availability of ultra-miniaturized pocket ultrasound devices (PUD) adds diagnostic power to the clinical examination. Information on accuracy of ultrasound with handheld units in immediate differential diagnosis in emergency department (ED) is poor. The aim of this study is to test the usefulness and accuracy of lung ultrasound (LUS) alone or combined with ultrasound of the heart and inferior vena cava (IVC) using a PUD for the differential diagnosis of acute dyspnea (AD)...
June 19, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28623910/pilot-study-using-3d-longitudinal-strain-computation-in-a-multi-parametric-approach-for-best-selecting-responders-to-cardiac-resynchronization-therapy
#19
Maxime Fournet, Anne Bernard, Sylvestre Marechaux, Elena Galli, Raphael Martins, Philippe Mabo, J Claude Daubert, Christophe Leclercq, Alfredo Hernandez, Erwan Donal
BACKGROUND: Almost all attempts to improve patient selection for cardiac resynchronization therapy (CRT) using echo-derived indices have failed so far. We sought to assess: the performance of homemade software for the automatic quantification of integral 3D regional longitudinal strain curves exploring left ventricular (LV) mechanics and the potential value of this tool to predict CRT response. METHODS: Forty-eight heart failure patients in sinus rhythm, referred for CRT-implantation (mean age: 65 years; LV-ejection fraction: 26%; QRS-duration: 160 milliseconds) were prospectively explored...
June 17, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28606187/investigation-on-left-ventricular-multi-directional-deformation-in-patients-of-hypertension-with-different-lvef
#20
Huimei Huang, Qinyun Ruan, Meiyan Lin, Lei Yan, Chunyan Huang, Liyun Fu
BACKGROUND: This study is aimed at investigating myocardial multi-directional systolic deformation in hypertensive with different left ventricular ejection fraction (LVEF), and exploring its contribution to LVEF. METHODS: One hundred and twenty-three patients with primary hypertension (HT) were divided into group A (LVEF ≥ 55%), group B (45% ≤ LVEF < 50%, or 50% ≤ LVEF < 55% + LVEDVI ≥ 97 ml/m(2)), and group C (LVEF < 45%). Two-dimensional strain echocardiography (2DSE) including LV longitudinal strain (SL), radial strain (SR) and circumferential strain (SC) were measured...
June 12, 2017: Cardiovascular Ultrasound
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