Comparison of the Reproducibility of Myocardial Perfusion Measurements using TrueFISP and TurboFLASH
Horstick G, Schreiber W, Kreitner K, Zelinka A, Kronfeld A
Mainz University Medical School
To compare intra- and interobserver variability of semi quantitative myocardial perfusion MRI with TrueFISP and TurboFLASH pulse sequences at low dose contrast agent dosage (0.04 mmol/kg BW) with each pulse sequence 20 patients were examined and myocardial perfusion reserve (MPR) was determined by 2 observers. Inter- and intraobserver variability were calculated for the TurboFLASH pulse sequence ((24&[plusmn]22)%, (26&[plusmn]23)% respectively) and for the TrueFISP pulse sequence ((21&[plusmn]20)%, (23&[plusmn]22)% respectively). In both cases the TrueFISP pulse sequence shows a significant better signal noise ratio and reproducibility and should be used for determination of MPR.