scholarly journals Cardiac magnetic resonance parametric mapping can detect early cardiac involvement of patients with systemic sclerosis

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
M Purevsuren ◽  
M Uehara ◽  
M Ishizuka ◽  
T Hara ◽  
N Kakuda ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Cardiac Involvement ◽  
Ventricular Septum ◽  
Right Atrial ◽  
Volume Index ◽  
Atrial Volume ◽  
Parametric Mapping ◽  
Native T1 ◽  
Left And Right ◽  
Right Atrial Volume

Abstract Background Systemic sclerosis (SSc) is divided into two subtypes, diffuse and limited cutaneous SSc (dcSSc and lcSSc). The dcSSc subtype has more severe internal organ fibrosis than lcSSc. It is unclear whether cardiovascular magnetic resonance (CMR) parametric mapping can detect early cardiac involvement in these two subtypes. Purpose To detect cardiac involvement and evaluate differences between the two subtypes, we examined CMR parametric mapping. Methods 57 consecutive SSc patients (27 dcSSc and 30 lcSSc) who visited our hospital from July 2018 to February 2021 and underwent CMR at 3.0T (Philips) were included. We analyzed myocardial damage using CMR parametric mapping and compared it with clinical data. Results Mean disease durations of dcSSc and lcSSc were 4.0±6.5 years and 4.4±8.3 years, respectively. Although there were no significant differences in LVEF (56.8±8.8 vs 59.6±7.2), the left and right atrial volume index were significantly larger in dcSSc compared with lcSSc (all p<0.05). Focal fibrosis as evaluated by late gadolinium enhancement was found in 9 SSc patients (15.7%) and 4 patients had pulmonary hypertension. DcSSc patients had significantly higher mid-ventricular native T1 (1350.8±73.2 vs 1312.9±52.1, p=0.029) and postcontrast T1 values (640.4±59.4 vs 604.6±42.5, p=0.015) as compared to lcSSc, although there were no significant differences in ECV and T2 values. Native T1 values in mid-ventricular septum were positively correlated with E/e' ratio of echocardiography in overall SSc patients and dcSSc patients but not in lcSSc patients (r=0.320, p=0.021; r=0.505, p=0.010; r=0.195, p=0.329). Native T1 values in mid-ventricular septum were also positively correlated with plasma levels of brain natriuretic peptide (BNP) in overall SSc patients and dcSSc patients but not in lcSSc patients (r=0.353, p=0.008; r=0.484, p=0.011; r=0.113, p=0.559).The multiple regression analysis considering age and sex revealed that mid-ventricular septum native T1 was the independent predictor of E/e' in SSc patients (β=0.306, p=0.026), and dcSSc patients (β=0.553, p=0.007) but not in lcSSc patients (β=−0.282, p=0.105). The ROC curve for predicting E/e'≥14, cut-off value of native T1 in mid-ventricular septum was ≥1348.5msec (AUC 0.762; 95% CI 0.571–0.953; sensitivity 80.0%; specificity 68.1%). BNP was significantly higher in patients with native T1≥1348.5 msec compared with native T1<1348.5 (102.8±112.8 vs 45.7±55.7; p=0.014). The interobserver variability of CMR parametric mapping values was excellent in this study. Conclusion DcSSc patients showed higher native T1 and larger left and right atrial volume index of CMR than lcSSc patients, suggesting that DcSSc patients had more severe myocardial involvement and left ventricular diastolic dysfunction than lcSSc patients. Early detection of the high native T1 may predict the occurrence of cardiovascular events in the future. FUNDunding Acknowledgement Type of funding sources: None. Correlation between native T1 and BNP Correlation between native T1 and E/e'

Abstract 281: The Association of Left and Right Atrial Volume Indices on Survival Time Post-cardiac Arrest

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_4) ◽  
Author(s):  
Sami H Ibrahim ◽  
Matt S Miller ◽  
Olivia J Blazek ◽  
Jarred E Strickling ◽  
Comfort Elumogo ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Survival Time ◽  
Right Atrial ◽  
Atrial Volume ◽  
Single Plane ◽  
Chamber View ◽  
Kaplan Meier ◽  
Left And Right ◽  
The Mean ◽  
Right Atrial Volume

Introduction: Left and right atrial volume indices (LAVI and RAVI) are markers of cardiac remodeling. LAVI and RAVI are associated with worse outcomes in other cardiac conditions. This study aimed to determine the association of LAVI and RAVI with survival time post-cardiac arrest. Hypothesis: Atrial volumes are associated with survival time post-cardiac arrest. Methods: This was a single center, retrospective study of patients with a cardiac arrest event during index hospitalization from 2014-2018. LAVI was calculated using the biplane Simpson’s method, while RAVI was calculated using a single plane summation in the 4-chamber view. Patients were further stratified into either having a Vfib/pulseless VT (pVT) event or a PEA arrest/asystole event. Survival time was measured in days from event to death date. Kaplan-Meier plots were used to evaluate differences in survival time for patients based on mean LAVI and RAVI. Results: Of 305 patients studied (64 +/- 14 years, 37% female (112 out of 305)), 162 had a reliable LAVI measurement with a mean of 34.1 mL/m 2 (SD=15.8) and 163 had a reliable RAVI measurement with a mean of 25.1 mL/m 2 (SD=15.5). In patients who had sustained a VFib/pVT event, those with reduced LAVI (p=0.045) and RAVI (p=0.041) values below the mean had significantly improved survival time. No association was found in the PEA/asystole subgroup. KM plots of patient survival for both LAVI and RAVI compared to mean are presented in figures 1a and 1b. Conclusion: Among patients presenting with Vifb/pVT arrest, increased LAVI and RAVI were associated with decreased survival time. More studies are needed to better prognosticate cardiac arrest using atrial volumes.

scholarly journals Right Atrial Volume Index in Chronic Systolic Heart Failure and Prognosis

2009 ◽  
Vol 2 (5) ◽  
pp. 527-534 ◽  
Author(s):  
John A. Sallach ◽  
W.H. Wilson Tang ◽  
Allen G. Borowski ◽  
Wilson Tong ◽  
Tama Porter ◽  
...  
Keyword(s):  
Heart Failure ◽  
Systolic Heart Failure ◽  
Right Atrial ◽  
Volume Index ◽  
Atrial Volume ◽  
Chronic Systolic Heart Failure ◽  
Right Atrial Volume

scholarly journals Myocardial native T1 mapping and correlations with clinical and CMR parameters in patients with systemic sclerosis

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
A Meloni ◽  
L Gargani ◽  
C Bruni ◽  
C Cavallaro ◽  
M Gobbo ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Myocardial Fibrosis ◽  
Healthy Subjects ◽  
T1 Mapping ◽  
Cardiac Involvement ◽  
Left Ventricular ◽  
Volume Index ◽  
Imaging Protocol ◽  
Native T1 ◽  
Spin Echo Sequence

Abstract Funding Acknowledgements Type of funding sources: None. Background Systemic sclerosis (SSc) is a connective tissue disease characterized by diffuse vascular lesions and fibrosis, also affecting the heart. Cardiovascular magnetic resonance (CMR) can detect replacement myocardial fibrosis by late gadolinium enhancement (LGE) and interstitial myocardial fibrosis/edema by T1 mapping techniques. Purpose To evaluate the prevalence of cardiac involvement by native T1 mapping and its correlation with clinical and CMR parameters in SSc patients. Methods Fifty-one consecutive SSc patients (mean age 51.8 ± 13.7 years, 42 females) and 51 healthy subjects matched for age and sex underwent clinical, bio-humoral assessment, and CMR at 1.5T (Signa Artist, GE Healthcare ). The imaging protocol included: cine, T1 mapping by MOLLI, T2 mapping by multi-echo fast-spin-echo sequence, LGE, and STIR T2-weighted sequences. Native T1 and T2 values were assessed in all 16 myocardial segments and the global value was the mean. Results. Global native T1 values were significantly higher in SSc patients than in healthy subjects (1076.4 ± 50.7 vs 1033.3 ± 31.9 ms; P < 0.0001). As in healthy subjects, in patients native T1 values were significantly lower in males than in females (1033.4 ± 38.3 vs 1085.6 ± 48.6 ms; P = 0.004) and inversely correlated with age (R=-0415; P = 0.002). Twenty-three (45.1%) patients had an increased global heart T1 value (>1060 ms in males and >1085 ms in females). Of them, 14 patients (60.9 %) showed positive LGE. Frequency of cardiovascular risk factors, indices of disease activity and chronicity, biochemical parameters, and cardio-active therapy were comparable between patients with normal and elevated T1. Compared to patients with normal T1 value, patients with elevated T1 had significantly higher left ventricular (LV) end-diastolic volume index (76.8 ± 13.3 vs 69.2 ± 11.8, P = 0.050), LV stroke volume index (49.7 ± 6.4 vs 44.4 ± 6.9 ml/m2; P = 0.010), LV cardiac output (3.6 ± 0.5  vs 3.0 ± 0.6 l/min /m2; P < 0.0001), and global heart T2 values (60.1 ± 3.6 vs 55.7 ± 3.1 ms; P < 0.0001). Replacement myocardial fibrosis was detected in 24 (47.1%) patients and they showed significantly higher global heart native T1 values (Figure 1A). Positive T2-weighted images for myocardial oedema were found in 5 (9.8%) patients, all with increased global heart native T1 value. Patients with oedema had significantly higher native global heart T1 values (Figure 1B). Conclusion Elevated native T1 values measured by CMR are frequent in SSc patients and they are associated with inflammation, replacement fibrosis, and increased LV dimension. CMR T1 mapping seems to be a sensitive parameter to include in the routine clinical assessment of SSc patients for detecting earlier pejorative cardiac involvement, although prospective data are recommended. Abstract Figure.

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