Evaluating variability of T2 values of the cartilage, menisci and muscles around knee joint on CartiGram sequence at 1.5 T and 3.0 T MR
Oral Presentation at the European Congress of Radiology, Vienna, 2019
To evaluate the temporal and inter magnetic field strength variability of T2 values of the cartilage, menisci and muscles of the knee joint using healthy volunteer data.
Methods and Materials
T2 CartiGram (CG) sequence of
The intra-day coefficient of variations for the lateral and medial side were 0.49%, 0.77% for the cartilage, 1.57%, 1.60% for muscle and 2.2%, 2.7% for meniscus on 1.5 T whereas the similar values were 0.69 %, 0.6 % for cartilage, 0.66 %, 1.2 % for muscle and 3.0 and 1.8 for meniscus on 3 T.The temporal coefficient of variations for the lateral and medial side were 3.2%, 4.7% for the cartilage, 1.17%, 0.46% for muscle and 7.8%, 4.3 % for meniscus.
The intra-day variability of the T2 values was lowest for the cartilage on 1.5 T and 3T scanner whereas the temporal variability was lowest for the muscles.