Comparison of right ventricular volume measurement between segmented k‐space gradient‐echo and steady‐state free precession magnetic resonance imaging

Alfakih, Khaled; Thiele, Holger; Plein, Sven; Bainbridge, Gavin; Ridgway, John P.; Sivananthan, Mohan U.

doi:10.1002/jmri.10164

Cited by 57 publications

(43 citation statements)

References 20 publications

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“…As a result, extra care is needed when defining and analysing the most basal slice of the above conventional RV "short-axis" data. As the RV is more trabeculated with slower blood flow than the LV and as the contrast in SSFP imaging is dependent on the T 2 /T 1 ratio of tissues and largely independent of blood flow through the imaging plane, we found SSFP imaging to be superior to TGE data sets for assessing the RV [32].…”

Section: Acquisition Protocolmentioning

confidence: 84%

“…TGE acquisition has been compared to previously validated sequences with excellent correlation, and SSFP imaging was recently validated in animal studies [16,30]. Measurements of ventricular volumes between TGE and SSFP pulse sequences have been compared in several studies [31,32]. These comparisons demonstrated a systematic difference between the two techniques, with SSFP yielding larger end-diastolic volumes (EDV) and end-systolic volumes (ESV) and smaller LV mass measurements than TGE.…”

Section: Pulse Sequencesmentioning

confidence: 97%

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Assessment of ventricular function and mass by cardiac magnetic resonance imaging

et al. 2004

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Cardiac magnetic resonance imaging is currently the technique of choice for precise measurements of ventricular volumes, function and left ventricular (LV) mass. The technique is 3D and hence independent of geometrical assumptions; this, along with its excellent definition of endocardial and epicardial borders, makes it highly accurate and reproducible. Cardiac magnetic resonance (CMR) is particularly useful in research, as it is highly sensitive to small changes in ejection fraction and mass, and only a small number of subjects are required for a study. The excellent reproducibility makes temporal follow-up of any individual patient in the clinical setting a realistic possibility. This review examines the merits of CMR and describes the techniques used.

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Section: Acquisition Protocolmentioning

confidence: 84%

Section: Pulse Sequencesmentioning

confidence: 97%

Assessment of ventricular function and mass by cardiac magnetic resonance imaging

et al. 2004

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“…These 2 techniques have been shown not to yield equivalent results. 17 However, baseline measurements and measurements after PVR were performed with the same imaging technique in all individual patients. Therefore, differences before and after surgery could be assessed reliably.…”

Section: Limitationsmentioning

confidence: 99%

Preoperative Thresholds for Pulmonary Valve Replacement in Patients With Corrected Tetralogy of Fallot Using Cardiovascular Magnetic Resonance

et al. 2007

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Background-To facilitate the optimal timing of pulmonary valve replacement, we analyzed preoperative thresholds of right ventricular (RV) volumes above which no decrease or normalization of RV size takes place after surgery. Methods and Results-Between 1993 and 2006, 71 adult patients with corrected tetralogy of Fallot underwent pulmonary valve replacement in a nationwide, prospective follow-up study. Patients were evaluated with cardiovascular magnetic resonance both preoperatively and postoperatively. Changes in RV volumes were expressed as relative change from baseline. RV volumes decreased with a mean of 28%. RV ejection fraction did not change significantly after surgery (from 42Ϯ10% to 43Ϯ10%; Pϭ0.34). Concomitant RV outflow tract reduction resulted in a 25% larger decrease of RV volumes. After correction for surgical RV outflow tract reduction, higher preoperative RV volumes (mL/m 2 ) were independently associated with a larger decrease of RV volumes (RV end-diastolic volume: ␤ϭ0.41; PϽ0.001). Receiver operating characteristic analysis revealed a cutoff value of 160 mL/m 2 for normalization of RV end-diastolic volume or 82 mL/m 2 for RV end-systolic volume. Conclusions-Overall, we could not find a threshold above which RV volumes did not decrease after surgery. Preoperative RV volumes were independently associated with RV remodeling and also when corrected for a surgical reduction of the RV outflow tract. However, normalization could be achieved when preoperative RV end-diastolic volume was Ͻ160 mL/m 2 or RV end-systolic volume was Ͻ82 mL/m 2 . (Circulation. 2007;116:545-551.)

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“…Although this is common clinical practice, analysis of a stack of RV cine loops in the axial imaging plane reduces intra and interuser reproducibility 14 and is widely considered the optimal method by which to measure RV volumes. Measurement of RV volumes from LV short-axis imaging planes can result in difficulty in distinguishing the right atrium from the basal RV at the level of the tricuspid valve, as well as in accurate segmentation of the RV indibulum.…”

Section: Fent and Pleinmentioning

confidence: 99%

New Cardiac Magnetic Resonance Reference Ranges for Right Ventricular Volumes and Systolic Function

Fent

Plein

2016

Circ: Cardiovascular Imaging

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A ccurate quantitation of right ventricular (RV) volumes and systolic function provides important diagnostic and prognostic information in a wide range of conditions. In the case of heart failure, a preserved RV ejection fraction (RVEF) is associated with improved long-term survival. 1 The most recent task force criteria for the diagnosis of arrhythmogenic RV cardiomyopathy require the presence of abnormal measurements of RV end-diastolic volume or RVEF to fulfil the major imaging criterion for diagnosis of the condition.2 In pulmonary arterial hypertension, increased RV end-diastolic volume and decreased RV stroke volume independently predict mortality 3 and after myocardial infarction, RV function is an independent prognostic marker of clinical outcome. CMR methods have undergone considerable evolution and standardization during the past 2 decades. Today, balanced steady-state free precession (SSFP) is the standard for acquisition of cine CMR images because it provides much better endocardial border delimitation, shorter scan times, and higher signal:noise ratios than the formerly used spoiled gradient echo methods. 6 The overall better image quality of balanced SSFP acquisition and the ability to more clearly differentiate trabeculation from the endocardial border leads to different estimates of left ventricular and RV chamber size, with typically larger volumes and lower mass. 7 Many older studies reporting normal values are, therefore, largely obsolete, and it is important that normal values for contemporary CMR methods are available. The largest study of those using older acquisition methods was the Multi-Ethnic Study of Atherosclerosis (MESA), which included a cohort of 4204 participants for whom CMR measurements of RV volumes were available. The authors reported increased RVEF with advancing age, increased RV end-diastolic volume but lower RVEF in men versus women, lower RVEF in black versus white individuals as well as higher right ventricular enddiastolic volume and lower RVEF in obese individuals. 8,9 Several other studies 7,10 have provided normal reference ranges for RV volumes and systolic function using contemporaneous SSFP acquisition, but these are on a much smaller scale than the study by Foppa et al 11 in this issue of Circulation: Cardiovascular Imaging.Foppa et al 11 report sex-specific normative values for RV measurement from a cross-sectional study of members of the Framingham Heart Study Offspring cohort. The reported normal values are derived from the 1336 participants remaining after exclusion of those with a history of either respiratory disease, previous venous thromboembolic disease, or significant left ventricular systolic impairment, ensuring a wellcharacterized sample. In addition to providing a normal range, the study makes several important observations. RVEF was greater in women, RV volumes were higher in males, and RV volumes increased with body size while there were smaller RV volumes in older subjects. Indexation of values according to body surface area adjusted appropriatel...

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Comparison of right ventricular volume measurement between segmented k‐space gradient‐echo and steady‐state free precession magnetic resonance imaging

Cited by 57 publications

References 20 publications

Assessment of ventricular function and mass by cardiac magnetic resonance imaging

Assessment of ventricular function and mass by cardiac magnetic resonance imaging

Preoperative Thresholds for Pulmonary Valve Replacement in Patients With Corrected Tetralogy of Fallot Using Cardiovascular Magnetic Resonance

New Cardiac Magnetic Resonance Reference Ranges for Right Ventricular Volumes and Systolic Function

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