Objective        To study the feasibility of susceptibility weighted imaging in diagnosis of meniscus tear of knee joint.       Methods        Forty patients with suspected meniscus tear of knee joint underwent MRI scanning of T

1

WI

T

2

WI-FS and SWI sequences. The sensitivity

specificity

accuracy and diagnostic outcome of T

1

WI

T

2

WI-FS and SWI sequences were compared with arthroscopy as the golden standards.       Results        The sensitivity

specificity and accuracy of T

1

WI

T

2

WI-FS and SWI sequence

s were 76.3%

50.0% and 75.0%

respectively; 71.1%

100.0% and 72.5%

respectively; and 94.7%

50.0% and 92.5%

respectively

for the diagnosis of meniscus tear of knee joint. The consistency of T

1

WI and T

2

WI-FS sequences was poorer than that of SWI sequence in diagnosis of meniscus tear of knee joint (P0.05). The Kappa value was 0.391 and 0.288

respectively

for T

2

WI-FS and SWI sequences. The diagnostic outcomes of meniscus tear of knee joint were significantly different between T

2

WI-FS and SWI sequences (P0.05).       Conclusion        The SWI sequence can be used in diagnosis of meniscus tear of knee joint

and its sensitivity and accuracy are better than the T

1

WI and T

2

WI-FS sequences.