Juliane Goebel1, Felix Nensa1, Haemi P. Schemuth1, Stefan Maderwald2, Marcel Gratz2,3, Harald H. Quick2,3, Thomas Schlosser1, Kai Naßenstein1
1Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
2Erwin L. Hahn Institute for Magnetic Resonance Imaging, University of Duisburg-Essen, Essen, Germany
3High Field and Hybrid MR Imaging, University of Duisburg-Essen, Essen, Germany
Tóm tắt
PurposeTo assess two compressed sensing cine magnetic resonance imaging (MRI) sequences with high spatial or high temporal resolution in comparison to a reference steady‐state free precession cine (SSFP) sequence for reliable quantification of left ventricular (LV) volumes.Materials and MethodsLV short axis stacks of two compressed sensing breath‐hold cine sequences with high spatial resolution (SPARSE‐SENSE HS: temporal resolution: 40 msec, in‐plane resolution: 1.0 × 1.0 mm2) and high temporal resolution (SPARSE‐SENSE HT: temporal resolution: 11 msec, in‐plane resolution: 1.7 × 1.7 mm2) and of a reference cine SSFP sequence (standard SSFP: temporal resolution: 40 msec, in‐plane resolution: 1.7 × 1.7 mm2) were acquired in 16 healthy volunteers on a 1.5T MR system. LV parameters were analyzed semiautomatically twice by one reader and once by a second reader. The volumetric agreement between sequences was analyzed using paired t‐test, Bland–Altman plots, and Passing–Bablock regression.ResultsSmall differences were observed between standard SSFP and SPARSE‐SENSE HS for stroke volume (SV; −7 ± 11 ml; P = 0.024), ejection fraction (EF; −2 ± 3%; P = 0.019), and myocardial mass (9 ± 9 g; P = 0.001), but not for end‐diastolic volume (EDV; P = 0.079) and end‐systolic volume (ESV; P = 0.266). No significant differences were observed between standard SSFP and SPARSE‐SENSE HT regarding EDV (P = 0.956), SV (P = 0.088), and EF (P = 0.103), but for ESV (3 ± 5 ml; P = 0.039) and myocardial mass (8 ± 10 ml; P = 0.007). Bland–Altman analysis showed good agreement between the sequences (maximum bias ≤ −8%).ConclusionTwo compressed sensing cine sequences, one with high spatial resolution and one with high temporal resolution, showed good agreement with standard SSFP for LV volume assessment. J. Magn. Reson. Imaging 2016;44:366–374.
