Mri Diagnosis And Differential Diagnosis Of Heart And Great Blood Vessels Of Old Myocardial Infarction, Normal Mri Findings And Measurement Study

1.The Methodology of ECG-gated Cardiac Magnetic Resonance Imaging(MRI) FONAR MR: Scanner with a permanent magnet operating at 0.3 Tesla was in this study.In all subjects,both healthy volunteers and patients,spin-echo(SE)pulse se quences with ECC-gating technique were used,and the technique was of alternate s lice selection order style.So that end systolic and diastolic images on the same bodyplane slice could be obtained.The axial right and left oblique planes were chosen,which could be enable to delineate the structures of various parts of the heart clearly,as well as be used routinely in future.TI weighted or blending T1 and T2 images were obtained in all subjects,among them T2 weighted images also obtained in 75% of the subjects. Comparing with the "true"long and short axial i mages,the merits and demerits of the above-stated method and its clinical signif icance,as well as the factors affecting the quality of the images were discussed...