Glen A. Toomayan

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Institutional review board approval and informed consent were obtained for this HIPAA-compliant study. The purpose of this study was to prospectively compare imaging of the acetabular labrum with 3.0-T magnetic resonance (MR) imaging and 1.5-T MR arthrography. Eight patients (four male, four female; mean age, 38 years) with hip pain suspicious for labral(More)
BACKGROUND Postmortem studies of the subiculum from subjects with schizophrenia have detected smaller pyramidal cell bodies and diminished immunoreactivity for the dendritic protein, microtubule-associated protein 2. While these findings suggest that subicular pyramidal cell dendrites may be structurally altered in subjects with schizophrenia, this(More)
OBJECTIVE MRI has historically provided suboptimal visualization of tears of the acetabular labrum. Degenerative fraying and underlying cartilage abnormalities can often mimic tears of the labrum on conventional MRI. Administration of intraarticular gadolinium enhances the MRI appearance of the labrum to improve detection of labral abnormalities. This study(More)
We wished to test independently a previously reported loss of subicular microtubule-associated protein 2 (MAP2) in the brains of deceased individuals who had suffered from schizophrenia, and to determine whether there were any clinical characteristics attached to such a loss. Immunohistochemistry for MAP2 was examined in the hippocampal region from 94(More)
N(omega)-Propyl-L-arginine (NPA) is reported to be a highly selective inhibitor of neuronal nitric oxide synthase (nNOS). This in vivo study observed its role in ischemia/reperfusion (I/R) injury in rat skeletal muscle. Our results showed that NPA infusion significantly increased vessel diameters and blood flow in reperfused cremaster muscle, and slightly(More)
Congenital anomalies of the umbilical vein are rare. We describe an aberrant course of the umbilical vein discovered by identifying an unusual umbilical venous catheter course on abdominal radiography in a patient with Cornelia de Lange syndrome. The umbilical vein bypassed the liver to insert directly into a right pelvic vein. Use of the lateral abdominal(More)
OBJECTIVE Patients with a known primary malignancy and one or more suspicious skeletal lesions are often assumed to have skeletal involvement by the known malignancy. We set out to determine how often one would be correct in making this assumption. MATERIALS AND METHODS All CT-guided bone biopsies performed at our institution between January 2006 and(More)
Malignant tumors of the upper extremity are uncommon, and their care should be referred to specialized facilities with experience treating these lesions. The Musculoskeletal Tumor Society (MSTS) staging system is used by the surgeon to determine appropriate surgical management, assess prognosis, and communicate with other healthcare providers. Magnetic(More)
A thorough understanding of compartmental anatomy is necessary for the radiologist participating in the care of a patient with a lower extremity musculoskeletal malignancy. Localization of tumor to compartment of origin and identification of extracompartmental spread preoperatively are needed to correctly stage a tumor and determine the appropriate surgical(More)