Cranial epidural hematomas: A case series and literature review of this rare complication associated with sickle cell disease.

Background: Patients with sickle cell disease (SCD) may experience many complications of the central nervous system (CNS) including stroke, silent cerebral infarcts, and neuropsychological deficits. Cranial epidural hematoma is a rare but potentially serious complication.

Procedure: Case series of cranial epidural hematomas in children with SCD from three different institutions is considered, along with a literature review of cranial epidural hematomas in this population.

Cystoid angiocentric glioma: A case report and literature review.

Angiocentric glioma is a rare subtype of neuroepithelial tumor that is associated with a history of epilepsy. We report a case of cystoid angiocentric glioma associated with an area of calcification. This 25 year old male patient presented with tonic clonic spasm.

Ontology-based image navigation: exploring 3.0-T MR neurography of the brachial plexus using AIM and RadLex.

Disorders of the peripheral nervous system have traditionally been evaluated using clinical history, physical examination, and electrodiagnostic testing. In selected cases, imaging modalities such as magnetic resonance (MR) neurography may help further localize or characterize abnormalities associated with peripheral neuropathies, and the clinical importance of such techniques is increasing. However, MR image interpretation with respect to peripheral nerve anatomy and disease often presents a diagnostic challenge because the relevant knowledge base remains relatively specialized.

Spectrum of superficial nerve-related tumor and tumor-like lesions: MRI features.

Superficial soft-tissue masses arising from skin appendages, metastasis, and inflammatory lesions have been widely reported. However, nerve-related superficial mass-like lesions other than peripheral nerve sheath tumors are less commonly described. High resolution magnetic resonance imaging (MRI) is an excellent non-invasive tool for the evaluation of such lesions.

Magnetic resonance imaging-guided percutaneous biopsy of mediastinal masses: diagnostic performance and safety.

Objective: The objective of this study was to evaluate the diagnostic performance and safety of magnetic resonance (MR) imaging-guided percutaneous mediastinal biopsy procedures using a 0.23-T open MR system with optical tracking navigation.

Materials And Methods: A retrospective analysis of 59 participants (38 males and 21 females; mean age, 45 years; range, 16-73 years) who underwent MR imaging-guided percutaneous mediastinal biopsy procedures was performed.

Magnetic resonance neurography of common peroneal (fibular) neuropathy.

Objective: To examine diagnostic accuracy of semiquantitative and qualitative magnetic resonance neurography criteria in common peroneal nerve (CPN) neuropathy.

Materials And Methods: Institutional review board approval was obtained with a waiver of informed consent for this Health Insurance Portability and Accountability Act-compliant retrospective study. A review of 28 knees in 28 subjects (12 males and 16 females; age range, 13-84 years; mean [SD] age, 42 [20] years) who had undergone magnetic resonance neurography of the knee was performed.

Multimodality correlations of patellar height measurement on X-ray, CT, and MRI.

Purpose: To investigate whether the universally accepted range of normal patellar height ratios derived from radiography for the Insall-Salvati (IS) and Blackburne-Peel (BP) methods could be similarly applied to both CT and MRI.

Materials And Methods: Institutional review board approval was obtained with waiver of informed consent for this HIPPA-compliant study. A total of 45 knees in 42 patients (15 men, 27 women; age range 11 to 75 years, mean age 39 ± 20 years) who underwent tri-modality (radiograph, CT, and MRI) examinations were selected.

Magnetic resonance neurography-surgical correlation of neurologic thoracic outlet syndrome.

For evaluation of thoracic outlet syndrome (TOS), 3 Tesla magnetic resonance neurography (MRN) is being increasingly used. The authors report the findings on 3 T MRN with surgical correlation in a rare case of neurologic TOS caused by anomalous costal pseudoarthrosis.

3 Tesla MR neurography--technique, interpretation, and pitfalls.

MRI has been used for almost two decades for the evaluation of peripheral nerve disorders. This article highlights the relative advantages and disadvantages of 3T MR neurography in the evaluation of peripheral neuropathies. The authors also describe the high-resolution MR neurography technique on 3T MRI, along with the approach to its interpretation that has evolved at one institution.

Exhaled nitric oxide levels during treatment of pediatric acute asthma exacerbations and association with the need for hospitalization.

Objectives: To examine how exhaled nitric oxide (eNO) levels measured before and after treatment of asthma exacerbations relate to emergency department (ED) disposition.

Methods: We enrolled children 6 to 17 years old treated for asthma exacerbations in a pediatric ED. Using an offline single-breath eNO sampling technique, we collected replicate initial samples before treatment and replicate final samples when disposition was decided.