Paul KirkTaigang HeLisa J. AndersonMichael RoughtonMark A. TannerWynnie W.M. LamWing Y. AuWinnie C.W. ChuGodfrey ChanRenzo GalanelloGildo MattaMark FogelAlan R. CohenRu San TanKevin ChenIvy NgAngie LaiSuthat FucharoenJiraporn LaothamataSuporn ChuncharuneeSutipong JongjirasiriDavid N. FirminGillian C. SmithDudley J. PennellRoyal Brompton HospitalChinese University of Hong KongThe University of Hong KongAzienda Ospedaliera Brotzu - MicrocitemicoAzienda Ospedaliera BrotzuThe Children's Hospital of PhiladelphiaNational Heart Centre, SingaporeSingapore General HospitalKK Women's And Children's HospitalMahidol University2018-09-242018-09-242010-08-01Journal of Magnetic Resonance Imaging. Vol.32, No.2 (2010), 315-31915222586105318072-s2.0-77955365667https://repository.li.mahidol.ac.th/handle/20.500.14594/29586Purpose: To examine the reproducibility of the single breathhold T2* technique fromdifferent scanners, after installation of standardmethodology in five international centers. Materials and Methods: Up to 10 patients from each center were scanned twice locally for local interstudy reproducibility of heart and liver T2*, and then flown to a central MR facility to be rescanned on a reference scanner for intercenter reproducibility. Interobserver reproducibility for all scans was also assessed. Results: Of the 49 patients scanned, the intercenter reproducibility for T2* was 5.9% for the heart and 5.8% for the liver. Local interstudy reproducibility for T2* was 7.4% for the heart and 4.6% for the liver. Interobserver reproducibility for T2* was 5.4% for the heart and 4.4% for the liver. Conclusion: These data indicate that T2* MR may be developed into a widespread test for tissue siderosis providing that well-defined and approved imaging and analysis techniques are used. © 2010 Wiley-Liss, Inc.Mahidol UniversityMedicineArticleSCOPUS10.1002/jmri.22245