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Magnetic resonance spectroscopy of the brain in children with sickle cell disease
Abdelhady T Emam1, Alsayed M Ali, Malek A Babikr
1Department of Radiology, King Fahd Military Medical Complex, Dhahran, Kingdom of Saudi Arabia. Mobile. +966 557051519. Fax. +966 (3) 8405526.
Objective:
To study the findings of magnetic resonance spectroscopy (MRS) of the brain in patients with sickle cell disease (SCD).
Methods:
This study was carried out from January 2007 to February 2009, in the Radiology Department of King Fahd Military Medical Complex, Dhahran, Kingdom of Saudi Arabia. The study consists of 22 patients with SCD ranging from 6-17 years, excluding those with a recent change in brain function. Twenty-two control subjects ranging from 7-19 years (13 boys, 9 girls) were also evaluated. An MRI and MRS were carried out for all patients.
Results:
Patients had a proportion of N-acetyl aspartate (NAA) in the basal ganglia that was higher than that of healthy control subjects. A higher ratio of NAA to choline (Cho) in patients compared to control subjects (p=0.012) was shown on short-echo and long-echo spectra (p=0.016). The ratio of Cho to creatine (Cr) was similar in patients and control subjects.
Conclusion:
The NAA is strikingly increased in the brain spectra of children with SCD, with no recent brain insult, questioning what is known of it as an indicator of neuronal viability.
