infant brain hemorrhage

My 5 week old had an MRI that showed a very small amount of subarachnoid blood (measuring 3x4mm) in the left fronto-pariatal cortex and multiple areas of microscopic blood in other areas of the brain.  She had a negative bone survey and her optical exam was also negative.  I have sitll been accused of shaking my baby and she was removed from my custody.  I am attempting to prove my innocence.  What is the differential diagnosis for infant brain hemorrhage, that lacks optical or skeletal damage?  Additionally, there was no swelling of the brain present.  Her coagulation profiles were negative.  Her MRA/MRV was also negative.  She did suffer a traumatic birth, I had preeclampsia and the cord was wrapped around her neck.  She had an MRI performed after she had 2 seizures at 5 weeks old.