OBJECTIVE AND @entity1 : One hundred and forty-one @entity1 with recent joint @entity130 , aged 12-71 years, were imaged on a 0.2-T dedicated MRI system and evaluated for @entity79 . The most beneficial sequences were compared. DESIGN: The diagnosis of post-traumatic @entity236 was established in 20 of 141 @entity1 on the basis of decreased signal intensity on T1-weighted SE and GRE sequences and increased signal intensity on T2-weighted TSE and fat-suppressed IRGE sequences. Signal changes within the bone marrow were evaluated and statistically correlated with normal bone. RESULTS: The highest signal alteration was found on T1-weighted SE and GRE sequences, followed by IRGE, which detected smaller differences in signal intensity. T2-weighted TSE imaging showed the least contrast. The areas with bone marrow changes were approximately equal in size on T1-weighted SE and T2-weighted TSE sequences. The same areas depicted on IRGE and GRE sequences proved to be significantly larger (P < 0.01). CONCLUSION: Using a 0.2-T dedicated system T1-weighted SE, T1-weighted GRE and IRGE sequences were most effective in detecting conspicuous bone marrow alteration, while the T2-weighted TSE sequence was inferior. GRE and IRGE imaging showed areas about 4 times larger depicting bone marrow changes. On suspicion of @entity79 , a protocol including GRE and IRGE pulse sequences could be most beneficial.

A comparison of pulse sequences in the detection of post-traumatic XXXX at low field strength MRI.

@entity1 :: ('9606', 'Species') :: ['patients', 'PATIENTS'] @entity79 :: ('MESH:D001847', 'Disease') :: ['bone bruise', 'bone bruises'] @entity236 :: ('MESH:D001855', 'Disease') :: ['bone marrow abnormalities'] @entity130 :: ('MESH:D014947', 'Disease') :: ['trauma']
@entity236 :: (MESH:D001855,Disease) :: ['bone marrow abnormalities']
