New scoring system in assessment of Hoffa’s fat pad synovitis: A comparative study with established scoring systems

Table 1 Magnetic resonance imaging parameters for the sequences

Imaging parameter	Tesla	Sequence
		Sag PD	Sag PD-FS	Sag T1CE	Ax PD-FS	Ax T1CE
Repetition time (ms)	1.5T	2000	3000	438	3400	714
	3T	2054-3940	3000-4150	530-782	3000-5300	530-782
Echo time (ms)	1.5T	46	46	12	43	13
	3T	22-30	30-43	12-20	13-45	12-20
Matrix resolution (mm)	1.5T	0.7 × 0.7	0.7 × 0.7	0.7 × 0.7	0.6 × 0.6	0.6 × 0.6
	3T	0.3 × 3.3	0.3 × 0.3	0.3 × 0.3	0.3 × 0.3	0.3 × 0.3
Field of view (mm)	1.5T	150	150	150	150	150
	3T	150	150	150	150	150
Slice thickness (mm)	1.5T	3.5	3.5	3.5	5	5
	3T	2.5	2.5	2.5	3	3

Sag PD: Sagittal proton density-weighted sequence; Sag PD-FS: Sagittal proton density-weighted fat-suppressed sequence; Sag T1CE: Sagittal contrast-enhanced T1-weighted fat-suppressed sequence; Ax PD-FS: Axial proton density-weighted fat-suppressed sequence; Ax T1CE: Axial contrast-enhanced T1-weighted fat-suppressed sequence; T1CE: T1-weighted fat-suppressed fast spin-echo sequence; PD: Proton density-weighted fast spin-echo sequence; PD-FS: Proton density-weighted fat-suppressed fast spin-echo sequence.