| Autor: |
Nassenstein K, Eberle H, Maderwald S, Jensen CJ, Heilmaier C, Schlosser T, Bruder O, Nassenstein, Kai, Eberle, Holger, Maderwald, Stefan, Jensen, Christoph J, Heilmaier, Christina, Schlosser, Thomas, Bruder, Oliver |
| Zdroj: |
European Radiology; Oct2010, Vol. 20 Issue 10, p2341-2347, 7p |
| Abstrakt: |
Objective: To evaluate a TGRAPPA (temporal parallel acquisition technique)-accelerated, single breath-hold multi-slice cine imaging approach for the assessment of left ventricular (LV) function.Methods: One hundred eleven patients were examined at 1.5 T. Cine imaging was performed with single-slice breath-hold acquisitions in short-axis orientation using a SSFP (TR 2.63 ms, TE 1.12 ms, FA 72°) sequence and a TGRAPPA SSFP (TR 2.66 ms, TE 1.11 ms, FA 72°, AF 3) sequence, which covered the entire LV in multiple short-axis slices during a single breath-hold. End-diastolic (EDV), end-systolic (ESV), stroke volumes (SV), ejection fraction (EF), muscle mass (MM) and regional wall motion were assessed for both data sets.Results: Single breath-hold imaging was feasible in 108 patients. Excellent correlations were observed for all volumetric parameters derived from both data sets (all r > 0.97). While EDV and ESV showed marginally lower values for single breath-hold imaging (EDV: -1.6 ± 7.9 ml; ESV: -1.8 ± 6.0 ml, p < 0.05), no differences were observed for SV, EF, MM and regional wall motion assessment. Single breath-hold imaging required significant shorter acquisition times (28 ± 6 s vs. 335 ± 87 s).Conclusion: TGRAPPA-accelerated multi-slice SSPF imaging allows for fast and accurate assessment of regional and global LV function within a single breath-hold. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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