Subscribe to RSS
DOI: 10.1055/s-2006-940539
Morphological analysis of anatomical location of diffuse axonal injury (DAI) changes on MR in the children and adults
We analyze a group 123 patients (64children and 59 adults) were examined with head CT and MRI (1,5T). The sequences used were:T2 FSE, FLAIR,T2GRE and T1SE.
Corpus callosum(CC) was involved in 70%. Involvement decreased from splenium(SCC)-55% to truncus (TCC)-23% and genu (GCC) – 23%. Punctate subcortical bleeding(SB) was present in 63%, bleeding in basal ganglia in 30% and in pons cerebri in 28%.
The children (ð age11,9) have lesion in CC in 78% compared to the 66% in adults (ðage40). Even higher differences were observed in SCC – 71% and 46%. Pons cerebri was involved in 38% of children, in 24% of adults. By contrast TCC was involved more often in adult (28%) than children (18%). SB has almost equal frequency of children and adults as well as a frequency of bleeding in basal ganglia.
The reasons of different frequency of injured anatomical structure include the laxity of soft tissues, the muscle tension, more pliable skull and relatively heavy head in childhood.
Lernziele:
A) The diagnostic sings of DAI are signal changes in corpus callosum and/or small petechial bleeding subcrotically (without cortical contusion) and in basal ganglia.
B) The corpus callosum is involved in 70% of diagnosed DAI.
C) Splenium is involved much more frequently in children then in adults.
D) Truncus corporis callosi and basal ganglia are involved more frequently in adulthood.
Korrespondierender Autor: Neuwirth J
FNM (University Hospital Motol), Clinic of imaging methods, Prag
E-Mail: jiri.neuwirth@lfmotol.cuni.cz