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PURPOSE To compare the MR appearance of the pituitary glands of healthy volunteers with that of patients with microadenomas. METHODS Unenhanced coronal T1-weighted MR of the pituitary gland was performed on 52 healthy adult volunteers and 14 consecutive patients with evidence of pituitary adenomas. The MRs were interpreted in a randomized, blinded(More)
Endovascular coiling is the most common treatment for cerebral aneurysms. During the treatment, a sequence of embolic coils with different stiffness, shapes, sizes, and lengths is deployed to fill the aneurysmal sac. Although coil packing density has been clinically correlated with treatment success, many studies have also reported success at low packing(More)
BACKGROUND One-third of children diagnosed with autism spectrum disorders (ASDs) are reported to have had normal early development followed by an autistic regression between the ages of 2 and 3 years. This clinical profile partly parallels that seen in Landau-Kleffner syndrome (LKS), an acquired language disorder (aphasia) believed to be caused by(More)
PURPOSE To determine the weighted average sensitivity of magnetic resonance (MR) imaging in the prospective detection of acute neck injury and to compare these findings with those of a comprehensive conventional radiographic assessment. MATERIALS AND METHODS Conventional radiography and MR imaging were performed in 199 patients presenting to a level 1(More)
The authors present a method of incorporating preoperative noninvasive functional brain mapping data into the frameless stereotactic magnetic resonance (MR) imaging dataset used for image-guided resection of brain lesions located near eloquent cortex. They report the use of functional (f)MR imaging and magnetic source (MS) imaging for preoperative mapping(More)
OBJECTIVE The aims of this study were to evaluate sonographically observable fetal cerebellar development by use of MR image and anatomic correlations to determine what aspects of this development can be visualized by sonography and to define the normal sonographic appearance of cerebellar development to assist in the differentiation of normal development(More)
OBJECTIVE Although ultrasound is the primary imaging modality for prenatal anatomic evaluation, some central nervous system malformations may be better defined with high-resolution magnetic resonance imaging (MRI). MRI allows us to visualize the features of brain development that were previously only seen histologically by embryologists and anatomists.(More)
PURPOSE To trace the development of the normal fetal temporal bone by means of plain radiography, MR, and CT. METHODS Eighteen formalin-fixed fetal specimens, 13.5 to 24.4 weeks' gestational age, were examined with a mammographic plain film technique, CT, and MR imaging at 1.5 T. Temporal bone development and ossification were assessed. RESULTS The(More)
Copper deficiency has been associated with a clinical syndrome, myeloneuropathy. Radiographic changes resembling B(12) deficiency in the cervical spinal cord have been described. We present a case of copper deficiency myeloneuropathy, with cervical MR imaging findings resembling B(12) deficiency, which partially reversed following copper supplementation.(More)
Venous malformation (VM) is the most common type of congenital vascular malformation (CVM). They are present at birth and are often symptomatic, causing morbidity and pain. VMs can be challenging to diagnose and are often confused with hemangioma in terminology as well as with imaging. An accurate clinical history and cross-sectional imaging are critical(More)