Key result
In pediatric cardiac cine MRI, temporal resolution <30 ms and smaller variations in the R-R interval significantly improved image quality (P<0.05).
Why the study?
Pediatric cardiac cine MRI must overcome challenges including small patient size and higher heart rates, motivating this evaluation of imaging optimization.
Does segmentation of data acquisition to improve temporal resolution improve image quality in pediatric cardiac cine MRI?
Observational (n=24)
Blinded to patient information and imaging parameters
No
Does segmentation of data acquisition to improve temporal resolution improve image quality in pediatric cardiac cine MRI?
p-value: p=<0.05
In pediatric cardiac cine MRI, using segmentation of data acquisition to achieve a temporal resolution of <30 ms significantly improves image quality, especially for heart rates over 100 bpm.
May support <30 ms resolution via segmentation in pediatric cine MRI; hypothesis-generating, should not yet change practice.
In pediatric cardiac cine magnetic resonance imaging (MRI), it must overcome several challenges including the patient's size and higher heart rate. The aim of this study was to retrospectively evaluate imaging optimization. Cardiac cine MRI data from 24 patients was analyzed (age range: 3 months-10 years, average age: 5 years, male/female: 11/13, R-R interval: 450±4 to 819±7 ms). About 11 cases out of 24 have good image quality. For small variations in the R-R interval and higher temporal resolution improved image quality with significant difference (P<0.05, Mann-Whitney U-test). In this study, values of temporal resolution <30 ms yielded good image quality for heart rates over 100 bpm. On the other hands, the factors dependent on the patient like heart rate and ejection fraction have no significant difference. The segmentation of data acquisition is more significant than recording small fields of view or thin slices for infantile and pediatric cardiac cine MRI. Similar to adult cases, variations in heart rate affect the image quality; however, we demonstrated that using segmentation of data acquisition results in improved image quality.
No takes yet. Share an insight, caveat, or question.
Matsushita et al. (2020) conducted an observational in Congenital heart disease (n=24). Temporal resolution <30 ms and segmentation of data acquisition vs. Standard or lower temporal resolution was evaluated on Good image quality (p=<0.05). In pediatric cardiac cine MRI, temporal resolution <30 ms and smaller variations in the R-R interval significantly improved image quality (P<0.05).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: