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Abnormalities,consisting of infarctions,cerebral edema,meningeal enhancement,and prominent perivascular spaces,were found on four of 44 CT scans and on four of six MR studies.The spinal MR study showed abnormal enhancement of the lower spinal cord and cauda equina.Nonspecific clinical symptoms were present in all patients in whom neuroimaging findings were abnormal and in 80%of patients whose CT and/or MR findings were normal. After treatment,return to baseline clinical status was documented in 67%of patients with abnormal imaging findings and in 93%with normal findings. Death occurred in 17%of patients with abnormal neuroimaging results and in none of those with normal results.Abnormalities on neuroimaging studies were not common in patients with Rocky Mountain spotted fever.When present,they were subtle.Symptoms at presentation and unfavorable outcomes were more prevalent when CT or MR findings were abnormal.Abnormalities identified on neuroimaging studies did not alter clinical treatment in any patient. |
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CAT scan
CAT scan,abnormal
cerebral edema
cerebrovascular accident
meningeal enhancement
mortality
MRI
MRI,abnormal
MRI,CAT scan compared to
prognosis
Rocky Mountain spotted fever
Virchow-Robin spaces,dilated
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