1,721,062 research outputs found
MR Safety Issues Particular to Women
No full textBecause of its lack of ionizing radiation, MR imaging is increasingly used for patients with cardiovascular disease, including young women. However, the risks related to the MR environment need to be acknowledged and prevented. For women, there are unique gender-related safety issues that are important to address in cardiovascular MR examinations. This article familiarizes radiologists with MR safety issues and current, evidence-based recommendations for specific situations such as pregnancy or lactation and imaging of women who have pelvic gynecologic devices such as intrauterine devices. Practical algorithms to minimize risk and increase MR safety for these women are suggested
Cystic pancreatic lesions: MR imaging findings and management
Full text linkCystic pancreatic lesions (CPLs) are frequently casual findings in radiological examinations performed for other reasons in patients with unrelated symptoms. As they require different management according to their histological nature, differential diagnosis is essential. Radiologist plays a key role in the diagnosis and management of these lesions as imaging is able to correctly characterize most of them and thus address to a correct management. The first step for a correct characterization is to look for a communication between the CPLs and the main pancreatic duct, and then, it is essential to evaluate the morphology of the lesions. Age, sex and a history of previous pancreatic pathologies are important information to be used in the differential diagnosis. As some CPLs with different pathologic backgrounds can show the same morphological findings, differential diagnosis can be difficult, and thus, the final diagnosis can require other techniques, such as endoscopic ultrasound, endoscopic ultrasound-fine needle aspiration and endoscopic ultrasound-through the needle biopsy, and multidisciplinary management is important for a correct management
The motion of hydrocarbon in the soils. Mineralogical and pedological description of the samples
No full textPediatric Chest MR Imaging Sedation, Techniques, and Extracardiac Vessels
No full textThoracic MR imaging in the pediatric population provides unique challenges requiring tailored protocols and a practical approach to pediatric issues, such as patient motion and sedation. Concern regarding the use of ionizing radiation in the pediatric population has continued to advance the use of MR imaging despite these challenges. This article provides a practical approach to thoracic vascular MR imaging with special attention paid to pediatric-specific issues such as sedation. Thoracic vascular anatomy and pathology are discussed with an emphasis on protocols that can facilitate accurate diagnosis
Practical protocol for lung magnetic resonance imaging and common clinical indications
No full textImaging speed, spatial resolution and availability have made CT the favored cross-sectional imaging modality for evaluating various respiratory diseases of children — but only for the price of a radiation exposure. MRI is increasingly being appreciated as an alternative to CT, not only for offering three-dimensional (3-D) imaging without radiation exposure at only slightly inferior spatial resolution, but also for its superior soft-tissue contrast and exclusive morpho-functional imaging capacities beyond the scope of CT. Continuing technical improvements and experience with this so far under-utilized modality contribute to a growing acceptance of MRI for an increasing number of indications, in particular for pediatric patients. This review article provides the reader with practical easy-to-use protocols for common clinical indications in children. This is intended to encourage pediatric radiologists to appreciate the new horizons for applications of this rapidly evolving technique in the field of pediatric respiratory diseases
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