scholarly journals Range of ventricular dimensions and function by steady-state free precession cine MRI in repaired tetralogy of Fallot: Right ventricular outflow tract patch vs. conduit repair

2007 ◽  
Vol 26 (4) ◽  
pp. 934-940 ◽  
Author(s):  
Margaret M. Samyn ◽  
Andrew J. Powell ◽  
Ruchira Garg ◽  
Laureen Sena ◽  
Tal Geva
Keyword(s):  
Steady State ◽  
Right Ventricular ◽  
Steady State Free Precession ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Cine Mri ◽  
Free Precession ◽  
And Function ◽  
Conduit Repair ◽  
Ventricular Dimensions

scholarly journals Steady-state free-precession (SSFP) cine MRI in distinguishing normal and bicuspid aortic valves

2008 ◽  
Vol 28 (4) ◽  
pp. 873-878 ◽  
Author(s):  
Tadhg G. Gleeson ◽  
Irene Mwangi ◽  
Stephen J. Horgan ◽  
Andrea Cradock ◽  
Patricia Fitzpatrick ◽  
...  
Keyword(s):  
Steady State ◽  
Steady State Free Precession ◽  
Cine Mri ◽  
Free Precession ◽  
Ssfp Cine ◽  
Aortic Valves ◽  
Bicuspid Aortic Valves

Mean Thoracic Aortic Wall Thickness Determination by Cine MRI with Steady-State Free Precession

2013 ◽  
Vol 20 (8) ◽  
pp. 1004-1008 ◽  
Author(s):  
Birger Mensel ◽  
Jens-Peter Kühn ◽  
Tobias Schneider ◽  
Alexander Quadrat ◽  
Katrin Hegenscheid
Keyword(s):  
Steady State ◽  
Wall Thickness ◽  
Aortic Wall ◽  
Steady State Free Precession ◽  
Cine Mri ◽  
Free Precession ◽  
Thickness Determination ◽  
Aortic Wall Thickness

Abstract 17984: Validating the Gold-standard: Steady-State Free Precession Sequence for Assessment of Left Ventricular and Right Ventricular Mass

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Carlos G Santos-Gallego ◽  
Ida U Njerve ◽  
Kiyotake Ishikawa ◽  
Jaime Aguero ◽  
Torsten Vahl ◽  
...  
Keyword(s):  
Steady State ◽  
Right Ventricular ◽  
Gold Standard ◽  
Steady State Free Precession ◽  
Left Ventricular ◽  
Free Precession ◽  
Post Surgery ◽  
Cardiovascular Morbidity And Mortality ◽  
Lv Mass

Background: Left ventricular (LV) mass (LVM) predicts cardiovascular morbidity and mortality, thus accurate quantification of LVM is essential. Cardiac magnetic resonance (CMR) is considered the gold-standard for LVM and right ventricular (RV) mass (RVM) quantification. The steady-state free precession (SSFP) is the most widely used sequence nowadays; however, SSFP-derived LVM/RVM has only been validated in normal animals, while CMR is usually performed under pathological conditions. Therefore, our objective was to validate in vivo SSFP-derived LVM/RVM with the gold-standard autopsy weights of experimental animals with myocardial infarction (MI), LV remodeling, and pulmonary hypertension (PH). Methods: MI was induced in 11 pigs by balloon occlusion of the proximal LAD for 60 min, and MRIs were obtained 2 months post-MI. PH was induced in 11 pigs by surgical ligation of three pulmonary veins and animals underwent CMR 4 months post-surgery. Animals were euthanized immediately after CMR. Each ventricle was separately weighted using a high-fidelity scale. MRI studies were performed with a 3.0 Tesla magnet. Results: In the MI model, infarct size (IS) was 29±6% of LV, LVEF 34±8%, RVEF 62±149%, mean pulmonary artery pressure (mPAP) 16±4mmHg, and pulmonary vascular resistance (PVR) 2.3±1.1 Wood units. In the PH model, IS was 0%, LVEF 64±5%, RVEF 55±10%, mPAP 36±16mmHg and PVR was 7.2±5.5 Wood units. All animals provided images of diagnostic quality. Excellent correlations were obtained between SSFP-calculated LV mass (86.6±12.9g) and autopsy-measured LV mass (91.1±15.2g, r=0.97, p<0.001). For LV, the correlation was not different in both groups of animals (r=0.98, p=0.01 for post-MI animals; r=0.96, p=0.01 for PH animals). There was also a strong correlation between RV mass obtained from CMR (37.9±14.1g) and from autopsy (41.6±13.1g r=0.9, p=0.01). For RV, the correlation was higher in PH animals (r=0.92, p<0.001) than in post-MI pigs (r=0.8, p=0.01). Conclusions: In vivo SSFP-CMR sequences determine LVM and RVM accurately and reliably compared with autopsy. Therefore, our study provides further validation for the clinical use of SSFP sequence derived LVM and RVM.

scholarly journals Balanced steady-state free precession vs. segmented fast low-angle shot for the evaluation of ventricular volumes, mass, and function at 3 Tesla

2007 ◽  
Vol 26 (2) ◽  
pp. 392-400 ◽  
Author(s):  
Frank Grothues ◽  
Hagen Boenigk ◽  
Joachim Graessner ◽  
Martin Kanowski ◽  
Helmut U. Klein
Keyword(s):  
Steady State ◽  
Steady State Free Precession ◽  
3 Tesla ◽  
Free Precession ◽  
Ventricular Volumes ◽  
And Function
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