Magnetic resonance imaging in pediatric XXXX .

@entity1 @entity154 @entity932 @entity5 @entity16 @entity1645 @entity602 @entity1504 @entity6789 @entity50 @entity385
We present our initial experience with magnetic resonance imaging (MRI) in 301 pediatric @entity1 with a variety of @entity16 . MRI does not require ionizing radiation and can be done easily and safely in @entity1 . It is equal or superior to computed cranial tomographic (CT) scans in demonstrating most types of pediatric @entity16 . MRI is often superior to CT scans in demonstrating @entity5 , although both studies are usually abnormal in highly malignant @entity5 . No clear advantage was shown with either MRI or CT scans for fluid-filled @entity1504 . Lesions of the brain stem and upper cervical region, such as @entity1645 , are well delineated by MRI. Increased signal from the paranasal sinuses was frequently evident by MRI, but, in most instances, there was no clinical indication of @entity50 . Large arteries can be visualized as an area of diminished signal, and @entity932 , @entity50 , and @entity385 were demonstrated. The increased anatomic detail pictured by MRI allows the diagnosis of @entity154 , such as @entity6789 or septum pellucidum, that are not always apparent with CT scans. Although our experience with @entity602 was not extensive, fluid-filled lesions within the cord can be reliably demonstrated.
