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MR feature tracking in assessment on myocardial deformation in patients on maintenance hemodialysis1Department of Radiology, Affiliated Hospital of Guizhou Medical University, Gui yang, China
Synopsis
Keywords: Myocardium, Cardiovascular
Motivation: To explore the application value of cardiac magnetic resonance (CMR) feature tracking technique in patients on maintenance hemodialysis(MHD).
Goal(s): To explore the application value of CMR feature tracking technique in patients on MHD.
Approach: CMR examination was performed in both groups, and the left ventricular myocardial strain values were obtained by FT-CMR to explore the differences in myocardial deformation between the two groups.
Results: With the increase of dialysis age, GCS, GRS and GLS were significantly lower than that in the low dialysis age group (-24.97±8.63 vs. -19.11±6.18, P=0.017; 23.31±9.96 vs. 33.23±15.88, P=0.022; -18.26±3.19 vs. -22.96±6.72, P=0.008).
Impact: In those with preserved ejection fraction, myocardial strain parameters are reduced, suggesting that the use of FT-CMR technique is helpful for early diagnosis of myocardial deformation injury in MHD patients.
Objective
To explore the application value of cardiac magnetic resonance (CMR) feature tracking technique in patients on maintenance hemodialysis(MHD).Methods
45 patients with MHD were prospectively collected, and 47 normal volunteers were recruited as the control group. First, to observe the differences of myocardial strain parameters between the patient group and the control group , and the changes of myocardial deformation in maintenance hemodialysis patients were evaluated as a whole. Then, the patient group was divided into low permeability age group and high permeability age group by dialysis age of 30 months, and the change trend of myocardial deformation with the increase of dialysis age in maintenance hemodialysis patients was observed. The changes of myocardial strain parameters in MHD patients with retained ejection fraction and control group were analyzed.Results
GCS, GRS and GLS in the patient group were significantly lower than those in the control group (-22.19±8.04 vs. -28.58±6.38, P<0.001; 28.52±14.15 vs. 43.55±19.90, P=0.001; -20.73±5.79 vs. -24.37±3.34, P<0.001).With the increase of dialysis age, GCS, GRS and GLS were significantly lower than that in the low dialysis age group (-24.97±8.63 vs. -19.11±6.18, P=0.017; 23.31±9.96 vs. 33.23±15.88, P=0.022; -18.26±3.19 vs. -22.96±6.72, P=0.008).GCS,GLS in the patient group with retained ejection fraction were significantly lower than those in the control group (-21.76±7.38 vs. -28.58±6.38,P=0.035; -20.64±6.35 vs. -24.37±3.34, P=0.034).Conclusion
In MHD patients, especially in those with preserved ejection fraction, myocardial strain parameters are reduced, suggesting that the use of FT-CMR technique is helpful for early diagnosis of myocardial deformation injury in MHD patients.Acknowledgements
Thank you to the experts and staff of this conferenceReferences
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