Structural and functional motor-network disruptions predict selective action-concept deficits: Evidence from frontal lobe epilepsy.

Built on neurodegenerative lesions models, the disrupted motor grounding hypothesis (DMGH) posits that motor-system alterations selectively impair action comprehension. However, major doubts remain concerning the dissociability, neural signatures, and etiological generalizability of such deficits. Few studies have compared action-concept outcomes between disorders affecting and sparing motor circuitry, and none has examined their multimodal network predictors via data-driven approaches.

Multimodal neurocognitive markers of frontal lobe epilepsy: Insights from ecological text processing.

The pressing call to detect sensitive cognitive markers of frontal lobe epilepsy (FLE) remains poorly addressed. Standard frameworks prove nosologically unspecific (as they reveal deficits that also emerge across other epilepsy subtypes), possess low ecological validity, and are rarely supported by multimodal neuroimaging assessments. To bridge these gaps, we examined naturalistic action and non-action text comprehension, combined with structural and functional connectivity measures, in 19 FLE patients, 19 healthy controls, and 20 posterior cortex epilepsy (PCE) patients.

Medical revolution in Argentina.

The paper discusses the major Argentineans contributors, medical physicists and scientists, in medical imaging and the development of medical imaging in Argentina. The following are presented: history of medical imaging in Argentina: the pioneers; medical imaging and medical revolution; nuclear medicine imaging; ultrasound imaging; and mathematics, physics, and electronics in medical image research: a multidisciplinary endeavor.

Basal cerebral glucose distribution in long-term post-traumatic stress disorder.

The purpose of this investigation was to study basal cerebral glucose absorption patterns associated to long-term post-traumatic stress disorder. Fluorodeoxyglucose positron emission tomography (FDG-PET) and statistic parametric mapping (SPM) were used to compare regional cerebral glucose absorption between 15 war veterans (Hispanic men, aged 39-41 (M = 39.5, SD = 0.

Spontaneous rupture of giant gastric GIST presenting as hemoperitoneum and mimicking cavernous liver angioma.

Spontaneous rupture of gastrointestinal stromal tumor (GIST) with hemoperitoneum is an extremely rare clinical presentation of this mesenchymal tumor. We report the unusual case of a 68-year-old man who was admitted to the hospital with abdominal pain. While waiting for the results of his laboratory tests the patient became pale and tachycardic and his abdomen distended with generalized rebound tenderness.

Severity of negative symptoms in schizophrenia correlated to hyperactivity of the left globus pallidus and the right claustrum. A PET study.

Schizophrenia has been characterized as a complex disease, in which various cerebral regions may be affected. The purpose of this study was to compare the cerebral regions that are involved in mild and severe negative symptoms, and to determine whether the degree of severity can be related to specific dysfunctional areas of the brain. The PANS Scale was used to form two groups of patients with prevalence of negative symptoms: Mildly Affected (MA), and Severely Affected (SA).

Immediate and delayed two-stage post-mastectomy breast reconstruction with implants. Our experience of general surgeons.

Background: Breast reconstruction after a mastectomy, today is considered the best choice to improve the quality of life for the patient. The aim of the procedure is to consider the aesthetic results obtained and the various involvements, comparing them with those already reported in literature. METHODS.

Use of a low-cost, PC-based image review workstation at a radiology department.

Despite the increasing use of diagnostic workstations, film reading is still commonplace in most radiology departments all over the world. The purpose of this work is to assess the adoption of image review workstations in a radiology department where the usual primary diagnosis is film-based and cannot be replaced with diagnostic workstations. At our institution, a tertiary care center specialized in diagnostic imaging, a pair of PC-based review workstations running a Digital Imaging and Communications in Medicine (DICOM)-conformant public domain software for image display and analysis were installed in two reading rooms.

A study of injected dose for brain mapping on the ECAT HR+: activation maps for a parametric verbal working memory task.

The success of the 15O-water PET technique to localize statistically significant changes in regional cerebral blood flow is dependent on factors such as the activity level injected and the magnitude of the flow change. Undetectable changes may occur if insufficient activity is injected leading to high levels of statistical noise or the task performed results in only small changes in blood flow. To explore the relationship between injected activity and statistical significance, we performed a series of studies with the ECAT EXACT HR+, a high resolution PET tomograph.