Endometriosis involving the neural axis is extremely rare. A twenty-five-year-old woman presented with acute onset paraparesis with bladder involvement of five-day duration. We missed her history of cyclical back-ache related to menses at the emergency room. Magnetic resonance imaging (MRI) of spinal cord showed an intramedullary tumour with bleeding at ...

Background: Neurological soft signs (NSS) are associated with schizophrenia and related psychotic disorders. NSS have been conventionally considered as clinical neurological signs without localized brain regions. However, recent brain imaging studies suggest that NSS are partly localizable and may be associated with deficits in specific brain areas. Method: We conducted ...

This investigation provides an analysis of structural asymmetries in 5 anatomically defined regions (Heschl's gyrus, HG; Heschl's sulcus, HS; planum temporale, PT; planum polare, PP; superior temporal gyrus, STG) within the human auditory-related cortex. Volumetric 3-dimensional T1-weighted magnetic resonance imaging scans were collected from 104 participants (52 males). Cortical volume ...

We presented a patient with abnormal focal accumulation of Ga in the left upper abdomen. After drinking water, we successfully identified the abnormal radioactivity that was from the stomach. Subsequent endoscopic examination did not reveal gastric pathological condition. Gastric accumulation of Ga may relate to pathological conditions or physiological uptake, ...

The objective of this study was to describe normal postpartum findings seen with fast whole-body magnetic resonance imaging of healthy, term neonates. We prospectively analyzed whole-body 3.0-T magnetic resonance imaging of 53 normal neonates scanned within 72 hours of birth to assess for postpartum-related findings. Increased T2 signal within the ...

We synthesize a NIR MHI-148 dye, a lipophilic heptamethine cyanine, with capability in tumor-targeting property to accumulate in the mitochondria of tumor. In the context of MHI-148 dye, we demonstrate effective tumor targeting and NIR fluorescence in vitro and in vivo for MHI-148 as compared to ICG. A series of porous Gd ...

Epilepsy surgery is an effective treatment in selected patients with localization-related intractable epilepsy. The success of epilepsy surgery is in part dependent upon identification of a lesion on MRI. In infants, the surgical epileptogenic substrates include focal cortical dysplasia (FCD), hemimegalencephaly, tuberous sclerosis complex, Sturge Weber syndrome, hypoxic-ischemic or cerebrovascular ...

BACKGROUND:: The aqueduct of Sylvius (AsSylv) is a structure of increasing importance in neuroendoscopic procedures. However, there is currently no clear and adequate description of the normal anatomy of the AqSylv. OBJECTIVE:: To study in detail hitherto unavailable normal MRI morphometry and anatomical variants of the AqSylv. METHODS:: We retrospectively ...

BACKGROUND AND PURPOSE: A new neurological implant, the Sensor-Reservoir, was developed to provide a relative measurement of ICP, which permits a noninvasive technique to detect and localize occlusions in ventricular drainage systems and, thus, to identify mechanical damage to shunt valves. The "reservoir" of this device can be used to ...

Prostate cancer (PCa) is the second leading cause of cancer-related death in American men. Positron emission tomography/computed tomography (PET/CT) with emerging radiopharmaceuticals promises accurate staging of primary disease, restaging of recurrent disease, detection of metastatic lesions and, ultimately, for predicting the aggressiveness of disease. Prostate-specific membrane antigen (PSMA) is a ...

In amyotrophic lateral sclerosis (ALS), diffusion weighted magnetic resonance imaging (DW-MRI) has produced mounting evidence of a widespread white matter (WM) damage within motor and extramotor pathways. To provide novel information about the degenerative process in ALS, overcoming some of the limitations imposed by diffusion tensor imaging (DTI), we performed ...

PURPOSE: The aim of this study was to provide better spatiotemporal description of the brain activity observed during generalized spike-and-wave (GSW) discharges. Simultaneous electroencephalography and functional magnetic resonance imaging (EEG-fMRI) studies of these epileptiform events have shown regional differences in the timing of fMRI signal changes, which suggests activities within ...

The neocortex is the largest component of the mammalian cerebral cortex. It integrates sensory inputs with experiences and memory to produce sophisticated responses to an organism's internal and external environment. While areal patterning of the mouse neocortex has been mapped using histological techniques, the neocortex has not been comprehensively segmented ...

Masses beneath the chiasm usually cause superiorly denser field defects. This report showed two very rare field defects related with infrachiasmal compression, monocular inferotemporal quadrantanopia in Case 1 and monocular temporal and inferonasal field defect in Case 2. We presume that these very rare visual field defects might be caused ...

This study evaluated a new approach combining magnetic resonance imaging and the experience sampling method in the understanding of post-stroke mood pathophysiology. Findings revealed that emotional cognition after stroke may be related to phenotypic characteristics such as cerebellar volume, thereby suggesting that this combined approach could provide new insights into ...

The objective of the study was to evaluate the performance of a non-contrast-enhanced magnetic resonance (MR) imaging protocol for preoperative screening of living related kidney donors. Forty consecutive subjects (mean age 52.2 ± 11.3 years, range 29-73 years) underwent MR imaging with T2-weighted sequences (coronal and axial plane), with a non-contrast-enhanced respiratory-gated ...

OBJECTIVE. The purpose of this commentary is to highlight several aspects of two main perspectives on sacrocolpopexy: surgical-which includes selection of a route for reconstructive surgery, types of surgical meshes available, advantages and disadvantages of each type of mesh, and the associated postoperative complication-and radiologic, that is, the role of ...

This study aims to present the physiopathological and surgical aspects of carpal tunnel syndrome (CTS) related to manual tea harvesting based on nerve conduction studies and clinical scoring systems. Clinical and neurophysiological scores as well as clinical and occupational variables were statistically analyzed using Boston questionnaire, modified criteria of Italian ...

Aortic penetrating atherosclerotic ulcer (PAU) is a relatively common incidental finding on thoracic computed tomography (CT) examinations. This is likely to relate to the steady increase in the number of CT examinations performed and also due, in part, to the increasing age of the general population. There is as yet ...

We present experimental work that reveals the benefits of performing magnetic force microscopy measurements employing the torsional resonance mode of cantilever oscillation. This approach provides two clear advantages: the ability of performing magnetic imaging without topography-related interference and the significant lateral resolution improvement (approximately 15%). We believe that this work ...

Rib and sternal fractures are relatively common following conventional cardiopulmonary resuscitation (CPR). This case demonstrates the F-FDG PET/CT appearances of typical CPR-related multiple rib and sternal fractures in a 55-year-old man with suspected cardiac sarcoidosis. The PET/CT scan was performed to assess disease activity of cardiac sarcoidosis, and no active ...

Novelty Seeking (NS) and Harm Avoidance (HA) temperamental traits are related to approaching or avoiding motivational circuits relying on the integrity and functionality of distributed brain areas implicated in arousal and action. The present study verified whether and how macro- and micro-structural variations of basal ganglia are correlated with scores ...

Manual volumetric measurement of the brain's frontal lobe and its subregions from magnetic resonance images (MRIs) is an established method for researching neural correlates of clinical disorders or cognitive functions. However, there is no consensus between methods used to identify relevant boundaries of a given region of interest (ROI) on ...

Joint-preserving surgery is performed in select patients with bone sarcomas of extremities and allows patients to retain the native joint with better joint function. However, recurrences may relate to achieving adequate margins and there is frequently little room for error in tumors close to the joint surface. Further, the tumor ...

In CT scans of smokers with COPD, the subsegmental airway wall area percent (WA%) is greater and more strongly correlated with FEV1 % predicted than WA% obtained in the segmental airways. Because emphysema is linked to loss of airway tethering and may limit airway expansion, increases in WA% may be ...

SUMMARY:Technologic advances in CT have generated a dramatic increase in the number of CT studies, with a resultant increase in the radiation dose related to CT scanning. Such increase in radiation dose is becoming a concern for the radiology community, especially with increasing public awareness of the dose burden related ...

We present a 3-year-old girl with a transoral injury by a bamboo chopstick penetrating the middle skull base. The features of imaging are described and the management is discussed. The potential for injury to the cavernous sinus is emphasized, even if no there is no hemorrhage on the initial CT ...

Long-standing symphyseal and adductor-related groin pain is a common problem for many athletes, and requires a multidisciplinary approach. Radiological evaluation of symptomatic individuals is a cornerstone in the diagnostic workup, and should be based on precise and reliable diagnostic terms and imaging techniques. The authors performed a review of the ...

PURPOSE: 2-[18F]Fluoro-2-deoxy-d-glucose positron emission tomography (FDG-PET) and magnetoencephalography (MEG) may assist in identifying the epileptogenic zone in children with nonlesional localization-related epilepsy. The aim of this study was to evaluate sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of FDG-PET, MEG, FDG-PET + MEG, and FDG-PET/MEG in children with ...

The present study investigated bladder and urogenital fatty fascial compartment (UFFC) variations during bladder filling in an attempt to identify other possible causes of hernia repair-related bladder injury besides mesh migration. The study included 30 patients scheduled for abdominal computed tomography (CT) scan for nonhernia diseases. Sixty-four-slice CT scan was ...

Carotid artery stenting is associated with the risk of periprocedural stroke. Moreover, modern magnetic resonance (MR) imaging techniques have found high rates of clinically silent ischemic brain lesions on post-treatment diffusion-weighted MR imaging (DWI) scans. The clinical significance of procedure-related DWI lesions, however, is still a matter of debate. This ...

ABSTRACT: The understanding of radiotracer's physiological biodistribution as well as the potential source of false-positive results is crucial for an accurate diagnostic interpretation of F-fluorocholine PET/CT examination in patients with prostate cancer. We illustrate the results of whole-body F-fluorocholine PET/CT in a 79-year-old man with biochemical suspicion of prostate adenocarcinoma ...

Purpose:To determine whether the intravenous administration of low-osmolality contrast material is associated with exacerbation of disease-related symptoms in patients with myasthenia gravis.Materials and Methods:This HIPAA-compliant, retrospective cohort study was approved by the institutional review board. The requirement to obtain patient consent was waived. Computed tomography (CT) was performed in 267 ...

Aortic stiffness, an important predictor of cardiovascular events, may relate to aortic calcification rather than noncalcified atherosclerotic plaque. The aim of this study was to determine the relation of aortic stiffness to aortic plaque and aortic calcification in asymptomatic postmenopausal women. One hundred female twins (mean age±standard deviation 64±7 years) ...

To demonstrate the sensitivity of a recently developed whole-brain magnetic resonance spectroscopic imaging (MRSI) sequence to cerebral pathology and disability in amyotrophic lateral sclerosis (ALS), and compare with measures derived from diffusion tensor imaging. Whole-brain MRSI and diffusion tensor imaging were undertaken in 13 patients and 14 age-similar healthy controls. ...

MRI is a powerful diagnostic imaging tool and its use has increased significantly in hospitals all over the world. Due to the technical particularities of MRI, all staff members dealing with the scanner need to have adequate knowledge of how it works and of aspects related to safety. The European ...

OBJECTIVE: To evaluate the trend in utilization of repeat (i.e. ≥2) computed tomography (CT) and to compare utilization patterns across body regions for trauma patients admitted to a level I trauma center for traffic-related injuries (TRI). MATERIALS AND METHODS: We linked the Harborview Medical Center trauma registry (1996-2010) to the ...

The Gray-faced Sengi (Rhynchocyon udzungwensis) is a newly-discovered species of sengi (elephant-shrew) and is the largest known extant representative of the order Macroscelidea. The discovery of R. udzungwensis provides an opportunity to investigate the scaling relationship between brain size and body size within Macroscelidea, and to compare this allometry among ...

A 42-year-old woman presented with a 1-week history of epigastric pain and deranged liver function tests (LFTs) on a background of known portal vein thrombosis (PVT) with cavernous transformation. Imaging with ultrasound, CT and MR cholangiopancreatography demonstrated known PVT, with distortion of the common bile duct and a bulky head/proximal ...

To investigate clinical and neuroimaging features of enterovirus71 (EV71) related acute flaccid paralysis in patients with hand-foot-mouth disease. Nine patients with acute flaccid paralysis met the criterion of EV71 induced hand-foot-mouth disease underwent spinal and brain MR imaging from May 2008 to Sep 2012. One extremity flaccid was found in ...

As with any radiologic imaging test, there are several potential interpretive pitfalls at CT colonography that need to be recognized and handled appropriately. Perhaps the single most important step in learning to avoid most of these diagnostic traps is simply to be aware of their existence. With a little experience, ...

European eel migrate from freshwater or coastal habitats throughout Europe to their spawning grounds in the Sargasso Sea. However, their route (∼ 6000 km) and orientation mechanisms are unknown. Several attempts have been made to prove the existence of magnetoreception in Anguilla sp., but none of these studies have demonstrated ...

This review focuses on the application of functional magnetic resonance imaging (fMRI) to the investigation of blast-related traumatic brain injury (bTBI). Relatively little is known about the exact mechanisms of neurophysiological injury and pathological and functional sequelae of bTBI. Furthermore, in mild bTBI, standard anatomical imaging techniques (MRI and computed ...

Objective To determine the incidence, morphological characteristics and relevance of paratracheal air cysts (PTACs) with pulmonary emphysema, as seen on thoracic multidetector CT (MDCT). Methods The CT images of 854 consecutive patients who underwent thoracic MDCT during a period of 2 months at our institution were reviewed. 538 of the ...

Together with mammography and ultrasonography, MRI has become a necessary technique for the management of breast disease. To reach a correct and precise diagnosis when interpreting breast MRI studies, it is essential to take into account artifacts and pitfalls due to technical, anatomic, physiological, disease-related, and operator-dependent factors. A multimodal ...

INTRODUCTION: The reproducibility of various classification systems for trochanteric fractures is poor. This problem could be related to a lack of readability when using conventional X-rays. HYPOTHESIS: Computed tomography scanning (CT scan) will improve the interobserver reproducibility of the AO classification for trochanteric fractures. PATIENTS AND METHODS: This was a ...

PURPOSE: To assess the ability of the "wall-carving image (WC) technique," which uses vascular images from computed tomography (CT) gastrography, to predict bleeding during endoscopic treatment in patients with early gastric cancers (EGC). MATERIALS AND METHODS: We analyzed the CT enhancement on WC images of 30 patients with EGC who ...

Perianal fistula is a clinical entity with multiple surgical treatment options. Recently, magnetic resonance imaging (MRI) has emerged as an important imaging modality in the management of perianal fistulas. It provides accurate description of the fistula within the anal canal in relation to the sphincter complex and other pelvic floor ...

Accurate identification of spinal cord segments in relation to vertebral landmarks is essential to surgery aimed at experimental spinal cord injury. We have analyzed a complete series of high-resolution magnetic resonance (MR) images from the mouse spine in order to delineate the boundaries of spinal cord segments in relation to ...

AIMS AND METHODS: To evaluate the clinical value of (18) F-fluorodihydroxyphenylalanine ((18) F-FDOPA) PET in relation to tumour localization and the patient's genetic status in a large series of pheochromocytoma/paraganglioma (PHEO/PGL) patients and to discuss in detail false-negative results. A retrospective study of PGL patients who were investigated with (18) ...