TABLE 2:

Summary of All Abnormalities Detected on Conventional Knee MRI and qDESS for Both Readers and Interreader Agreement

Tissue, Finding	Conventional MRI			qDESS			Surgical Findingsa
	Reader 1	Reader 2	Agreement (%)	Reader 1	Reader 2	Agreement (%)
Meniscus
Normal	56	51	95	61	50	89	56
Myxoid degeneration	4	8	92	2	17	85	0
Tear	42	43	97	39	35	98	32
Cruciate ligaments
Normal	81	80	95	86	84	96	75
Low-grade sprain	3	4	97	0	0	96	0
Moderate sprain	5	6	99	4	6	99	0
Complete tear	13	12	99	12	11	99	11
Collateral ligaments
Normal	137	137	97	145	137	95	−
Low-grade sprain	11	10	98	5	12	95	−
Moderate sprain	3	4	99	2	4	96	−
Complete tear	2	2	100	1	0	99	−
Cartilage
Grade 0	180	168	92	184	150	87	0
Grade 1	4	8	99	0	0	95	24
Grade 2A	69	63	88	51	58	87	45
Grade 2B	26	37	94	39	52	93	44
Grade 3	27	30	99	32	30	97	22
Extensor mechanism
Normal	70	63	83	92	86	90	−
Tendinopathy	27	32	85	8	12	90	−
Partial tear	5	7	98	2	4	98	−
Complete tear	0	0	NA	0	0	NA	−
Bone marrow
Normal	804	795	95	842	837	98	−
Bone marrow edema	68	72	93	31	35	93	−
Subchondral cyst	34	40	95	39	38	99	−
Fracture	12	11	98	6	8	98	−
Synovium
Normal	34	31	95	34	32	92	−
Effusion	35	35	95	34	36	92	−
Synovitis	33	36	95	34	34	92	17

Note—Values are the number of findings unless otherwise indicated. Dash (−) indicates finding was not evaluated. qDESS = quantitative double-echo steady-state, NA = not applicable.

^aSurgical findings are presented for 43 of 51 patients with imaging results.