BACKGROUND AND PURPOSE MRI has been increasingly used in the evaluation of acute stroke patients. However, MRI must be able to detect early hemorrhage to be the only imaging screen used before treatment such as thrombolysis. Susceptibility-weighted imaging, an echo-planar T2* sequence, can show intracerebral hemorrhage (ICH) in patients imaged between 2.5 and 5 hours from symptom onset. It is u...

Lesions of the deep digital flexor tendon (DDFT) are a cause for foot lameness in horses. Positron emission tomography (PET) could provide valuable information regarding metabolic activity these lesions. The aims this exploratory, prospective, methods comparison study were to assess ability 18fluorine-fluorodeoxyglucose (18F-FDG) PET detect DDFT lesions and compare findings with CT MRI findings...

BACKGROUND Although conventional magnetic resonance imaging (MRI) could provide excellent detection of morphological changes in the diagnosis of lumbar disc degeneration (LDD), it has some difficulties in discriminating minimal changes associated with early LDD before morphological or clinical alterations. Therefore, newer MRI techniques have emerged for investigation of early LDD. OBJECTIVES...

BACKGROUND Magnetic resonance (MR) signal changes suggestive of cerebral venous thrombosis (CVT) on T1- and T2-weighted images may be subtle and their identification requires a high degree of suspicion. Magnetic resonance venography remains essential for definitive diagnosis. Recent reports have shown that T2(*)-weighted MR sequence is more sensitive than T1-weighted, T2-weighted, and fluid-att...

Diffusion-weighted magnetic resonance imaging (DW-MRI) appears to hold promise as a non-invasive imaging modality in the detection of early microstructural and functional changes of different organs. DW-MRI is an imaging technique with a high sensitivity for the detection of a large variety of diseases in the urogenital tract. In kidneys, DW-MRI has shown promise for the characterization of sol...

BACKGROUND AND PURPOSE Recent data suggest that early symptoms may be related to cortex alterations in CADASIL (Cerebral Autosomal-Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy), a monogenic model of cerebral small vessel disease (SVD). The aim of this study was to investigate cortical alterations using both high-resolution T2* acquisitions obtained with 7 Tesla MRI an...

•Quantitative MR can detect differences between myositis and healthy controls.•Fat fraction T2 measurements are higher muscle volume is lower in myositis.•T2 identify pathology undetectable by radiologist scoring. AIMTo assess whether magnetic resonance imaging (MRI)-based of T2, fat fraction, diffusion tensor imaging, the muscles patients controls, to how they compare with semi-quantitative MR...

Accurate mapping the damaged vascular network is key to subsquent effective therapeutic strategy implementation in ischemic stroke. In this study, magnetic resonance imaging (MRI) based on a platelet membrane biomimetic nanocarrier, loaded with L-arginine and γ-Fe2O3 nanoparticles (PAMNs), has been developed for delineating injury acute Due loading of nanoparticles, multi-parameter MRI includin...

OBJECTIVES This study aimed to determine whether the myocardial T2 relaxation time, determined using a black-blood magnetic resonance imaging (MRI) sequence, could predict acute heart transplant rejection. BACKGROUND The use of black-blood MRI sequences allows suppression of the confusing influence of blood signal when myocardial T2 is calculated to detect myocardial edema. METHODS A total ...

PURPOSE To minimize feature loss in T1- and T2-weighted MRI by merging multiple MR images acquired at different TR and TE to generate an image with increased dynamic range. MATERIALS AND METHODS High Dynamic Range (HDR) processing techniques from the field of photography were applied to a series of acquired MR images. Specifically, a method to parameterize the algorithm for MRI data was devel...