T1rho Sequences with FASE, UTE, and MAPSS Acquisitions for Knee Evaluation

This is the authors' abstract. We don't add key points for this paper.

Three T1rho sequences based using 3D FASE, 3D UTE, and 3D MAPSS acquisitions were developed and compared by imaging agarose phantoms and normal human knees. The sequences utilize 4 to 6 spin lock times, and can be acquired in about 5 min or less. On phantoms, all three sequences resulted in consistent T1rho values that decreased with increasing agarose concentration, similar to past reports. T1rho values of cartilage and menisci were also in line with previously reported values. This work will be useful for evaluating knee osteoarthritis and other musculoskeletal diseases.