Myocardial Contractile Mechanics in Ischemic Mitral Regurgitation

Kochav, Jonathan; Kim, Jiwon; Judd, Robert M.; Tak, Katherine; Janjua, Emmad; Maciejewski, Abigail; Kim, Han W.; Klem, Igor; Heitner, John F.; Shah, Dipan J.; Zoghbi, William A.; Shenoy, Chetan; Farzaneh‐Far, Afshin; Polsani, Venkateshwar; Villar-Calle, Pablo; Parker, Michele; Judd, Kevin M.; Khalique, Omar; Leon, Martin B.; Devereux, Richard B.; Levine, Robert A.; Kim, Raymond J.; Weinsaft, Jonathan W.

doi:10.1016/j.jcmg.2022.03.014

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…[6][7][8][9] The longitudinal myocardial function can also be evaluated by cardiac MRI through detection of the mitral annular displacement, which is a potentially sensitive parameter of the left ventricular systolic function. [10][11][12][13] Moreover, cardiac MRI is free from radiation and noninvasive, allows imaging acquisition in any desired plane, and can provide images with excellent temporal and spatial resolution irrespective of patient features or operator's experience especially for 3-Tesla MRI, therefore being currently considered the reference standard in evaluating cardiac function. [14,15] Nonetheless, cardiac MRI is contraindicated in patients with an implanted pacemaker or defibrillator, claustrophobia or any clinical conditions which prohibit long-time cardiac MRI examination.…”

Section: Introductionmentioning

confidence: 99%

Three-Tesla magnetic resonance imaging of left ventricular volume and function in comparison with computed tomography and echocardiography

Guo

Liu

et al. 2023

Medicine

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This study investigated the correlation between 3-Tesla magnetic resonance imaging (MRI) and 256 multiple-slice computed tomography (MSCT) or 2-dimensional echocardiography (ECHO) in evaluating left ventricle. Forty patients were retrospectively enrolled to undergo cardiac MSCT, 3-Tesla MRI and 2-dimensional ECHO within 1 week. The end-diastolic (EDV) and end-systolic volume (ESV), stroke volume (SV) and ejection fraction (EF) were analyzed and compared. MSCT was highly significantly correlated with MRI. Compared with MRI, MSCT slightly overestimated ESV for about 8.7 mL, but slightly underestimated EF and SV for about 6.8% and 5.8 mL, respectively. A high consistency existed between MSCT and MRI, with the 95% limit of agreement (−19.6, 25.4) mL for EDV, (−2.6,20.1) mL for ESV, (−28.3,16.6) mL for SV, and (−18.8%,5.1) % for EF. ECHO was also significantly correlated with MRI. The ECHO slightly underestimated the left ventricular function compared with MRI, with an underestimation of 9.4 mL for EDV, 3.5 mL for ESV, 5.8 mL for SV and 1.0% for EF. A wider agreement limit existed between MRI and ECHO. MSCT has a better correlation and agreement relationship with MRI parameters than 2-dimensional ECHO in assessing the left ventricle and may serve as a possible alternative to MRI.

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