Why the study?
Does high temporal resolution breathheld 3D CINE SSFP imaging yield accurate ventricular function measurements compared to 2D CINE in patients with chronic myocardial infarction?
Does high temporal resolution breathheld 3D CINE SSFP imaging yield accurate ventricular function measurements compared to 2D CINE in patients with chronic myocardial infarction?
High temporal resolution 3D CINE SSFP imaging can be performed in a single breathhold and yields ventricular function measurements comparable to standard 2D CINE methods in patients with chronic myocardial infarction.
Answers are grounded in this paper and cite their sources.
Single-breathhold 3D CINE may streamline LV assessment in chronic MI; hypothesis-generating and requires prospective validation before practice change.
PURPOSE: To develop a gated single-breathhold, high temporal resolution three-dimensional (3D) CINE imaging technique and to evaluate its accuracy in volumetric and functional quantification in patients with chronic myocardial infarction. MATERIALS AND METHODS: A 3D CINE steady-state free precession (SSFP) pulse sequence was developed incorporating variable temporal sampling of the low and high spatial frequency k-space data to reduce breathhold time and parallel imaging to increase temporal resolution. Reconstruction with retrospective interpolation enabled complete R-R interval coverage. Feasibility was assessed in eight patients with chronic myocardial infarction and ventricular functional values were compared to those of a 2D CINE acquisition. RESULTS: There was no significant difference between the 3D CINE and 2D CINE for end-diastolic volume (168 +/- 73 vs. 177 +/- 59 mL, respectively; P < 0.27), end-systolic volume (81 +/- 62 vs. 79 +/- 53 mL; P < 0.81), and ejection fraction (EF) measurements (55 +/- 14% vs. 58 +/- 14%; P < 0.14). The mean difference in EF was less than 2.5%. A wall motion assessment indicated a good agreement, with a weighted kappa value of 0.62. CONCLUSION: High temporal resolution 3D CINE SSFP imaging of the whole heart can be obtained in a single breathhold and yield ventricular function measurements similar to 2D CINE methods.
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Rettmann et al. (2007) studied this question.
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