Volumetric Cine CMR to Quantify Atrial Structure and Function in Patients with Atrial Dysrhythmias

Raman, Subha V.; Ng, Vincent Y.; Neff, Matthew A.; Sayar, Salem; Sparks, Elizabeth; Nelson, Sarah E.; Ferketich, Amy K.; Wooley, Charles F.

doi:10.1081/jcmr-200062772

Cited by 14 publications

(13 citation statements)

References 19 publications

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“…The values for right atrial volumes and EF differ greatly between these studies. Discrepancies between previously published data and our results can be explained by differences in imaging sequences (25), image acquisition (25,27), and analysis methods (23,(25)(26)(27). Thus, the comparison of the results is difficult.…”

Section: Discussioncontrasting

confidence: 74%

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Reference Right Atrial Function Determined by Steady-State Free Precession Cardiovascular Magnetic Resonance

Sievers

Addo

Breuckmann

et al. 2007

J. of Cardiovascular Magnetic Resonance

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Background: There is agreement that measurements of atrial volumes and ejection fraction (EF) are superior to atrial diameters for accurate determination of atrial size, follow up studies and prognosis. However, reference values for right atrial volumes and EF for cardiovascular magnetic resonance (CMR) have not been established but are crucial to identify patients with impaired right atrial function. Methods and Results: Atrial function was studied in 70 healthy subjects (52 ± 16 years, 38 male) with both the standard short axis method (SA) and the arealength method (AL) using steady-state free precession gradient-echo cine imaging (SSFP). Intraobserver, interobserver (n = 70) and interstudy (n = 10) variability was assessed for both methods. Maximal volumes, minimal volumes and EF for SA and AL were 101.0 ± 30.2 mL, 50.3 ± 19 mL and 47.2 ± 8.3%, and 103.2 ± 32.6 mL, 50.8 ± 20.2 mL and 51.4 ± 9.2%, respectively. Maximal volumes, minimal volumes and EF were higher with AL than with SA (mean difference: 2.2 ± 4.6 mL, 3.5 ± 3.5 mL and 2.8 ± 2.8%, respectively). Atrial function measurements were not related to gender (p ≥ 0.387) and age (rho ≤ 0.16) with either method. Intraobserver, interobserver and interstudy variability for volumes and EF was lower for SA compared to AL, with narrower limits of agreement. Analysis was faster with AL than with SA (62 ± 18 s versus 7 ± 2 minutes). Conclusion: Normal ranges for right atrial function vary significantly between methods. AL is faster, but less reproducible than SA. Appropriate reference ranges should be used to differentiate normal from abnormal right atrial function.

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Section: Discussioncontrasting

confidence: 74%

“…Only few studies with small numbers of patients (n ≤ 19) have addressed right atrial function by CMR (23)(24)(25)(26)(27)(28). The values for right atrial volumes and EF differ greatly between these studies.…”

Section: Discussionmentioning

confidence: 94%

Reference Right Atrial Function Determined by Steady-State Free Precession Cardiovascular Magnetic Resonance

Sievers

Addo

Breuckmann

et al. 2007

J. of Cardiovascular Magnetic Resonance

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“…There are CMR studies that evaluated LA volumes and function but which did not aim to quantify the ACC to LV filling in normal subjects. There are some studies that quantified the total atrial emptying (maximal volume – minimal volume) / maximal volume in normal subjects (7) and in patients with atrial dysrhythmia (8), but not the contribution of atrial contractile function to LV filling. One recently published study quantified the atrial contractile function using the biplane area‐length method in patients with chronic hypertension (9).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of left atrial contraction contribution to left ventricular filling using cardiovascular magnetic resonance

Alhogbani

Strohm

Friedrich

2012

Magnetic Resonance Imaging

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“…Patients with persistent AF had larger ostia than patients with paroxysmal AF [53], which has not been confirmed in other studies [47,60,61]. Superoinferior diameter of PV ostia is longer than anteroposterior, and therefore, the venous ostial index calculated as their ratio has been suggested for evaluation of PV ostia [15,52,62].…”

Section: Anatomy Of Pulmonary Veinsmentioning

confidence: 97%

Imaging in percutaneous ablation for atrial fibrillation

et al. 2006

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Percutaneous ablation for electrical disconnection of the arrhythmogenic foci using various forms of energy has become a well-established technique for treating atrial fibrillation (AF). Success rate in preventing recurrence of AF episodes is high although associated with a significant incidence of pulmonary vein (PV) stenosis and other rare complications. Clinical workup of AF patients includes imaging before and after ablative treatment using different noninvasive and invasive techniques such as conventional angiography, transoesophageal and intracardiac echocardiography, computed tomography (CT) and magnetic resonance imaging (MRI), which offer different information with variable diagnostic accuracy. Evaluation before percutaneous ablation involves assessment of PVs (PV pattern, branching pattern, orientation and ostial size) to facilitate position and size of catheters and reduce procedure time as well as examining the left atrium (presence of thrombi, dimensions and volumes). Imaging after the percutaneous ablation is important for assessment of overall success of the procedure and revealing potential complications. Therefore, imaging methods enable depiction of PVs and the anatomy of surrounding structures essential for preprocedural management and early detection of PV stenosis and other ablation-related procedures, as well as long-term follow-up of these patients.

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Volumetric Cine CMR to Quantify Atrial Structure and Function in Patients with Atrial Dysrhythmias

Abstract: CMR can quantify atrial structure and function in patients with PAF compared to controls. This protocol could not detect abnormalities in atrial function in early affected patients with heritable cardiomyopathy and atrial premature beats.

Cited by 14 publications

References 19 publications

Reference Right Atrial Function Determined by Steady-State Free Precession Cardiovascular Magnetic Resonance

Reference Right Atrial Function Determined by Steady-State Free Precession Cardiovascular Magnetic Resonance

Evaluation of left atrial contraction contribution to left ventricular filling using cardiovascular magnetic resonance

Imaging in percutaneous ablation for atrial fibrillation

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