Table 1.

Summary of metal artifact-reduction (MAR) MRI findings

	MAR MRI findings
A	B	C	D	E	F	G	H	I	J
ASR resurfacing	7	0	2	3	1	6	3	1	17
Corail with XL head and ASR cup	35	3	3	15	3	21	0	3	62
Total	42	3	5	18	4	27	3	4	79

A Prosthesis

B Normal

C Abnormal, not ARDM

D Mild ARMD

E Moderate ARMD

F Severe ARMD

G All ARDM

H Unclassifiable

I Not scanned

J Total