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Source: The International Journal of Cardiovascular Imaging
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Total 142 results found since Jan 2013.
Age-related changes in morphology of left atrial appendage in patients with atrial fibrillation
AbstractThe purpose of this study was to evaluate the relationship between age and frequency of left atrial appendage (LAA) morphology in patients with atrial fibrillation (AF) compared with sinus rhythm (SR). We enrolled 145 AF patients, and 199 SR patients for the control group without any cardiovascular disease. LAA volume index (LAAVi) and morphology were assessed by electrocardiogram-gated computed tomography angiography. LAA morphology was classified into “chicken wing” or “non-chicken wing” according to the previously described classification. There was no significant trend in frequency of non-chicken wing m...
Source: The International Journal of Cardiovascular Imaging - February 1, 2018 Category: Radiology Source Type: research
Left and right ventricular parameters corrected with threshold-based quantification method in a normal cohort analyzed by three independent observers with various training-degree
AbstractWhile cardiac magnetic resonance (CMR) is the reference method to evaluate left and right ventricular functions, volumes and masses, there is no widely accepted method for the quantitative analysis of trabeculae and papillary muscles (TPM). The aim of this study was to investigate the effect of TPM quantification on left and right ventricular CMR values in a normal cohort and to investigate interobserver variability of threshold-based (TB) analysis by three independent observers with variant experience in CMR. At our clinic, 60 healthy volunteers (30 males, mean age 25.6 ± 4.7 years) underwent CMR scan perfo...
Source: The International Journal of Cardiovascular Imaging - February 28, 2018 Category: Radiology Source Type: research
Left atrial myocardial dysfunction after chronic abuse of anabolic androgenic steroids: a speckle tracking echocardiography analysis
AbstractAnabolic –androgenic steroids (AAS) are used by power athletes to improve performance. However, the real effects of the chronic consumption of AAS on cardiovascular structures are subjects of intense debate. To detect by speckle tracking echocardiography (STE) underlying left atrial (LA) dysfunction in ath letes abusing AAS and assess possible correlation between LA myocardial function and exercise capacity during cardiopulmonary stress test. 65 top-level competitive bodybuilders were selected (45 males), including 35 athletes misusing AAS for at least 5 years (users), 30 anabolic-free bodybuilders (n on-users), ...
Source: The International Journal of Cardiovascular Imaging - May 22, 2018 Category: Radiology Source Type: research
Evaluation of aortic stiffness by a new simplified 2D speckle tracking analysis
AbstractArterial stiffness is a marker of cardiovascular damage and an independent predictor of major cardiovascular events, usually assessed via Carotid-Femoral Pulse Wave Velocity (cfPWV). The aim of this study was to test the feasibility and usefulness of aortic strain analysis using a simplified transthoracic echocardiography (TTE) speckle-tracking (ST) based method. 60 consecutive patients with normal blood pressure and aortic dimensions underwent TTE and cfPWV evaluation. Strain analysis was performed on the largest section of the ascending aorta (aA) with a dedicated software; three couples of speckles were identifi...
Source: The International Journal of Cardiovascular Imaging - June 21, 2018 Category: Radiology Source Type: research
Echocardiographic features of PFOs and paradoxical embolism: a complicated puzzle
AbstractPatent foramen ovale (PFO) is a residual, oblique, slit or tunnel like communication in the atrial septum that persists into adulthood. It is usually an incidental finding with no clinical repercussions. Nevertheless, recent evidence supports the association between the presence of a PFO and a number of clinical conditions, most notably cryptogenic stroke (CS). There is enough evidence that paradoxical embolism is a mechanism which can explain this association. Patient characteristics and certain echocardiography-derived anatomical and hemodynamic features of PFO provide great assistance in estimating the probabili...
Source: The International Journal of Cardiovascular Imaging - June 28, 2018 Category: Radiology Source Type: research
Left atrial myocardial dysfunction after chronic abuse of anabolic androgenic steroids: a speckle tracking echocardiography analysis
AbstractAnabolic –androgenic steroids (AAS) are used by power athletes to improve performance. However, the real effects of the chronic consumption of AAS on cardiovascular structures are subjects of intense debate. To detect by speckle tracking echocardiography (STE) underlying left atrial (LA) dysfunction in ath letes abusing AAS and assess possible correlation between LA myocardial function and exercise capacity during cardiopulmonary stress test. 65 top-level competitive bodybuilders were selected (45 males), including 35 athletes misusing AAS for at least 5 years (users), 30 anabolic-free bodybuilders (n on-users), ...
Source: The International Journal of Cardiovascular Imaging - October 1, 2018 Category: Radiology Source Type: research
Relationships of high cardiac output with ventricular morphology, myocardial energetics, and energy costs in hemodialysis patients with preserved ejection fraction
AbstractHemodialysis patients have conditions that increase cardiac output (CO), including arteriovenous fistula, fluid retention, vasodilator use, and anemia. We sought to determine the relationships between these factors and CO and to evaluate the effects of the high-output states on ventricular morphology, function, and myocardial energetics in hemodialysis patients, using noninvasive load-insensitive indices. Cardiovascular function was assessed in hemodialysis patients with high output [ejection fraction ≥ 50%, cardiac index (CI) > 3.5 L/min/m2, n = 30], those with normal output (CI < 3.0...
Source: The International Journal of Cardiovascular Imaging - October 16, 2018 Category: Radiology Source Type: research
Pulmonary arteriovenous malformations
AbstractPulmonary arteriovenous malformation, a condition most commonly associated with hereditary hemorrhagic telangiectasia, is an abnormal communication between the pulmonary artery and pulmonary vein without an intervening capillary communication. Although asymptomatic in ~ 50% individuals, it can present with the dreaded complications of stroke or intracranial abscess in high-risk individuals including pregnant women, if untreated. The mainstay of treatment is now endovascular embolization of the feeding artery which can alleviate the symptoms and prevent these com plications. In this review, we describe the pathop...
Source: The International Journal of Cardiovascular Imaging - November 1, 2018 Category: Radiology Source Type: research
Prosthesis-patient mismatch after transcatheter aortic valve replacement: prevalence and medium term prognostic impact
AbstractProsthesis-patient mismatch (PPM) occurs when the effective orifice area of the prosthesis is too small in relation to the patient's body surface area. There are few data available on the frequency and prognostic impact of PPM after transcatheter aortic valve implantation (TAVI). Our aim was to determine the prevalence of PPM and to investigate its association with medium-term clinical course of patients undergoing TAVI. We included 185 patients undergoing TAVI (79 ± 5 years, 49% male, 98% CoreValve) between April-2008 and December-2014. The effective orifice area (EOA) was determined by transthoracic echocardiogr...
Source: The International Journal of Cardiovascular Imaging - January 19, 2019 Category: Radiology Source Type: research
Left ventricular vortex formation time in elite athletes
In conclusion, the VFT was elevated among elite athletes compared to healthy sedentary controls.
Source: The International Journal of Cardiovascular Imaging - March 1, 2019 Category: Radiology Source Type: research
Left atrial volume index and left ventricular global longitudinal strain predict new-onset atrial fibrillation in patients with transient ischemic attack
This study aimed to investigate different echocardiographic parameters for predicting atrial fibrillation (AF) in patients with transient ischemic attack (TIA). Echocardiography was performed in 110 patients (median age 65.8 years, 53% males) with TIA and no history of stroke or AF. All patients underwent monitoring with ECG and 72 h Holter-monitoring, and if no AF was found, an insertable cardiac monitor (ICM) was implanted and patients were followed for a median of 2.2 years. AF was found in 14 patients: five with Holter-monitoring and nine with ICM. AF patients had significantly larger left atrial (LA) volumes index...
Source: The International Journal of Cardiovascular Imaging - March 27, 2019 Category: Radiology Source Type: research
Echocardiographic determination of pulmonary arterial capacitance
AbstractA growing body of evidence has demonstrated that pulmonary arterial capacitance (PAC) is the strongest hemodynamic predictor of clinical outcomes across a wide spectrum of cardiovascular disease, including pulmonary hypertension and heart failure. We hypothesized that a ratio of right ventricular stroke volume (RVOT VTI) to the associated peak arterial systolic pressure (PASP) could function as a reliable non-invasive surrogate for PAC. We performed a prospective study of patients undergoing simultaneous transthoracic echocardiography and right heart catheterization (RHC) for various clinical indications. Measureme...
Source: The International Journal of Cardiovascular Imaging - April 8, 2019 Category: Radiology Source Type: research
Prognostic value of left atrial strain in patients with moderate asymptomatic mitral regurgitation
AbstractFor patients with asymptomatic mitral regurgitation (MR), the criteria identifying the groups at higher-risk and their clinical outcome are still uncertain. Therefore, in these patients, optimal time of surgery remains controversial. The purpose of this study was to compare left atrial (LA) strain to other echocardiographic left ventricular (LV) and LA parameters for the prediction of cardiovascular outcomes in patients with moderate asymptomatic MR. We enrolled 395 patients with primary degenerative moderate asymptomatic MR. Exclusion criteria were: history of atrial fibrillation, myocardial infarction, heart fail...
Source: The International Journal of Cardiovascular Imaging - April 9, 2019 Category: Radiology Source Type: research
Severe loss of right ventricular longitudinal contraction occurs after cardiopulmonary bypass in patients with preserved right ventricular output
AbstractAssessment of right ventricular (RV) function is crucial since RV failure with a reduced cardiac output (CO) is associated with compromised outcome in cardiac surgery. Echocardiographic evaluation of RV function is commonly used, but a reduction in tricuspid annular plane systolic excursion (TAPSE) and tricuspid annulus tissue Doppler imaging (S ′) have been observed independently of clinical signs of RV failure. This has led to uncertainty of these variables’ validity in cardiac surgery. To describe transesophageal echocardiographic (TEE) measures of RV function during coronary artery bypass graft surgery with...
Source: The International Journal of Cardiovascular Imaging - May 1, 2019 Category: Radiology Source Type: research
Left atrial appendage orifice diameter measured with trans-esophageal echocardiography is independently related with peri-device leakage after Watchman device implantation
AbstractPercutaneous left atrial appendage closure (LAAC) has emerged as an alternative of stroke prevention in non-valvular atrial fibrillation (NVAF) patients. Peri-device leakage after LAAC is common. This retrospective, case –control study aimed to identify risk factors related with peri-device leakage after LAAC with Watchman devices. Patients who underwent Watchman devices implantation received trans-esophageal echocardiography (TEE) before, during and 45 days after procedure. Peri-device leakage was defined as a r esidual flow of any size detected with TEE. Patients with residual flows were compared with sex and ...
Source: The International Journal of Cardiovascular Imaging - July 17, 2019 Category: Radiology Source Type: research
