. Author manuscript; available in PMC: 2015 Jun 22.

Published in final edited form as: J Orthop Sports Phys Ther. 2013 Oct 30;43(12):881–890. doi: 10.2519/jospt.2013.4486

TABLE 1.

Magnetic Resonance Imaging Acquisition Parameters

Sequence	Parameters	Variables
Sagittal, T2-weighted, fat-saturated FSE	TR/TE, 4300/51 ms; FOV, 14 cm; matrix, 512 × 256; slice thickness, 2.5 mm; gap, 0.5 mm; ETL, 9; bandwidth, 31.25 kHz; NEX, 2	Semi-quantitative clinical WORMS grades
Sagittal, 3-D, fat-saturated high-resolution SPGR	TR/TE, 15/6.7 ms; flip angle, 18; FOV, 14 cm; matrix, 512 × 512; slice thickness, 1 mm; bandwidth, 31.25 kHz; NEX, 1	Articular cartilage thickness
T1rho/T2 quantification sequence	TSL, 0/10/40/80 ms; prep TE, 0/13.7/27.3/54.7 ms; FOV, 14 cm; matrix, 256 × 128; VPS, 64; time of recovery, 1.2 s; slice thickness, 4 mm; number of slices, 26; acquisition time, 9 min and 30 s	Articular and meniscal cartilage T1rho/T2 relaxation times
Axial, FSE T1-weighted sequence of thigh muscles	TE/TR, 6.41/800; slice thickness, 10 mm; matrix, 384 × 1932; ETL, 2; bandwidth, 150 kHz; NEX, 4	Thigh muscle ACSA

Abbreviations: ACSA, anatomical cross-sectional area; ETL, echo train length; FOV, field of view; FSE, fast spin-echo; NEX, number of excitations; SPGR, spoiled gradient-echo; TE, echo time; TR, relaxation time; TSL, spin lock time; VPS, views per segment; WORMS, whole-organ magnetic resonance imaging score.