Study of Inversion Time of Double Inversion Recovery Technique in Knee Synovial Hypertrophy: Comparison with T2-Weighted Image and PD-Weighted Image in 3.0 Tesla MR System

The purpose of this study was to aid in the diagnosis of knee synovial hypertrophy using DIR sequences without contrast agents. In the 3.0T MR system, the TI value was set to TI1/TI2 (2805/229 msec) and applied to the DIR technique. At this time, no contrast agent was used. In synovium and effusion, DIR showed higher SNR and CNR than T2WI and PDWI. In conclusion, the DIR technique using the proposed TI value is useful for the diagnosis of knee synovial hypertrophy as compared with the conventional image. In the future, this study will provide basic data in the study applying DIR technique to various diseases.