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The American Journal of Nursing Dec 2002
Review
Topics: Child; Equipment Design; Equipment Failure; Female; Humans; Magnetic Resonance Imaging; Male; Patient Selection
PubMed: 12473927
DOI: 10.1097/00000446-200212000-00012 -
Journal of the Royal Naval Medical... 1994
Review
Topics: Humans; Knee Joint; Magnetic Resonance Imaging; Naval Medicine
PubMed: 7707273
DOI: No ID Found -
The British Journal of Radiology Nov 1997The development of minimally invasive surgical and interventional techniques has created a need for more accurate and sensitive image guidance and monitoring. Magnetic... (Review)
Review
The development of minimally invasive surgical and interventional techniques has created a need for more accurate and sensitive image guidance and monitoring. Magnetic resonance imaging, with its superior soft tissue discrimination and multiplanar facilities, seems the obvious choice for an ideal image-guidance tool. Until recently, the employment of MRI in this role has been prevented by the physical constraints of conventional, closed-configuration machines. The problem has now been overcome by the development of an open design allowing both horizontal and vertical access to the patient in the scanner so that procedures can be performed concurrent with image acquisition. This configuration, together with the use of fast gradient echo sequences which can scan at speeds close to real time, means that a wide range of interventional procedures can be performed with on-line image guidance and monitoring. In addition, the versatility of the open design means that patients can assume physiological positions to allow dynamic joint imaging to be performed. This opens up a whole new field in the understanding of joint pathophysiology. This review article discusses these recent technological developments and their clinical applications. In particular, the potential role in guidance of biopsies, monitoring of thermal ablation techniques and applications in endoscopic surgery is outlined.
Topics: Animals; Biopsy; Catheter Ablation; Endoscopy; Humans; Magnetic Resonance Imaging; Magnetic Resonance Imaging, Cine
PubMed: 9534721
DOI: 10.1259/bjr.1997.0011 -
Texas Heart Institute Journal Apr 2014Cardiac magnetic resonance imaging has emerged as a robust noninvasive technique for the investigation of cardiovascular disorders. The coming-of-age of cardiac magnetic... (Review)
Review
Cardiac magnetic resonance imaging has emerged as a robust noninvasive technique for the investigation of cardiovascular disorders. The coming-of-age of cardiac magnetic resonance-and especially its widening span of applications-has generated both excitement and uncertainty in regard to its potential clinical use and its role vis-à-vis conventional imaging techniques. The purpose of this evidence-based review is to discuss some of these issues by highlighting the current (Part 1, previously published) and emerging (Part 2) applications of cardiac magnetic resonance. Familiarity with the versatile uses of cardiac magnetic resonance will facilitate its wider clinical acceptance for improving the management of patients with cardiovascular disorders.
Topics: Cardiovascular Diseases; Disease Management; Evidence-Based Medicine; Humans; Inventions; Magnetic Resonance Imaging; Quality Improvement
PubMed: 24808772
DOI: 10.14503/THIJ-14-4172 -
Neurotherapeutics : the Journal of the... Jul 2007Parallel MRI started with the introduction of coil arrays in improving radiofrequency (RF) acquisition (what is called parallel imaging) and continued with an analogous... (Review)
Review
Parallel MRI started with the introduction of coil arrays in improving radiofrequency (RF) acquisition (what is called parallel imaging) and continued with an analogous development for RF transmission (parallel transmission). Based on differences in the spatial sensitivity distributions of the involved array elements, both techniques try to shorten the respective k-space trajectory. Parallel imaging refers to the acquisition of k-space data, whereas parallel transmission is dealing with the deposition of RF energy packages in the excitation k-space. However, parallel transmission is not simply the reciprocal of parallel imaging. The main goal of parallel imaging is the shortening of the acquisition time. The main goal of parallel transmission is the shortening of the pulse duration of spatially selective RF pulses. The present article describes the basic concept, the state of the art, and the similarities and differences of both technologies.
Topics: Animals; Humans; Magnetic Resonance Imaging
PubMed: 17599714
DOI: 10.1016/j.nurt.2007.04.011 -
Neonatal Network : NN 2003Over the past decade, advances in neuroimaging have given birth to a new field of diagnostic pediatric neurologic assessment that includes magnetic resonance imaging... (Review)
Review
Over the past decade, advances in neuroimaging have given birth to a new field of diagnostic pediatric neurologic assessment that includes magnetic resonance imaging (MRI). This invaluable tool helps medical professionals to resolve many clinical and research questions related to neonatal neurodevelopment that other imaging technology cannot explain. Nurses and others who accompany infants to MRI would benefit from a better understanding of early neurodevelopment and of the neuroimaging procedure. Knowing the advantages and disadvantages of MRI techniques can help nurses be better patient advocates, parent liaisons, and caregivers to infants having MRI scans.
Topics: Brain; Humans; Infant, Newborn; Magnetic Resonance Imaging; Neonatal Nursing; Nursing Methodology Research; Radiography
PubMed: 12597087
DOI: 10.1891/0730-0832.22.1.9 -
Drug and Therapeutics Bulletin Dec 2011Magnetic resonance imaging (MRI) is a technique that produces cross-sectional images of a patient's body, using magnetism and radio waves. Here we discuss advantages and... (Review)
Review
Magnetic resonance imaging (MRI) is a technique that produces cross-sectional images of a patient's body, using magnetism and radio waves. Here we discuss advantages and disadvantages of MRI scans and practical issues for clinicians and patients.
Topics: Contraindications; Contrast Media; Humans; Magnetic Resonance Imaging; Neoplasms; Patient Education as Topic
PubMed: 22170411
DOI: 10.1136/dtb.2011.02.0073 -
Ugeskrift For Laeger Jan 2014Magnetic resonance imaging (MRI) is one of the four imaging modalities used in radiology. In contrast to computed tomography (CT), it does not use radiation. MRI is... (Review)
Review
Magnetic resonance imaging (MRI) is one of the four imaging modalities used in radiology. In contrast to computed tomography (CT), it does not use radiation. MRI is still developing and the diagnostic capabilities are growing. There are many indications for MRI and in some fields it has replaced CT. With few exceptions MRI is used mainly for elective examinations, and because of the new techniques like diffusion and perfusion MRI in cancer imaging the use is increasing both with regard to work-up and follow-up. For non-malignant lesions MRI is increasingly used thanks to its great soft-tissue contrast capabilities.
Topics: Humans; Magnetic Resonance Imaging
PubMed: 24629608
DOI: No ID Found -
The British Journal of Theatre Nursing... Jun 1991Magnetic Resonance Imaging is the latest diagnostic tool to have a significant impact on patient management. Magnetic Resonance Imaging, or MRI, has been available for...
Magnetic Resonance Imaging is the latest diagnostic tool to have a significant impact on patient management. Magnetic Resonance Imaging, or MRI, has been available for over six years but has only in the last 18 months become readily available to many more hospitals in Great Britain. MRI scanners have been purchased by large specialist hospitals but the arrival of mobile MRI scanners has made the technology available to smaller hospitals and groups. The impact of MRI for all clinicians and especially surgeons is great and the following text will outline the advantages of MRI and mobile MRI.
Topics: Humans; Magnetic Resonance Imaging
PubMed: 1802066
DOI: No ID Found -
Pediatric Cardiology 2000The advent of ultra-fast imaging techniques has extended the utility of magnetic resonance imaging (MRI) from a static and purely diagnostic status to an imaging... (Review)
Review
The advent of ultra-fast imaging techniques has extended the utility of magnetic resonance imaging (MRI) from a static and purely diagnostic status to an imaging modality ideally suited for a number of therapeutic applications. These advances--along with the recent development and refinement of miniature intravascular imaging catheters and MRI-compatible guidewires, balloon catheters, and radiofrequency ablation catheters--have created an exciting forum of novel approaches for detecting and treating both acquired and congenital cardiovascular disease. This review covers the current state of the art in fast cardiovascular MRI, catheter-tracking techniques for MR fluoroscopy, and currently available interventional MRI systems. Early diagnostic and therapeutic applications, such as high-resolution intravascular and intracardiac imaging, balloon angioplasty, stent placement, and radiofrequency ablation techniques, are discussed and extended to several potential approaches specific to pediatric cardiac therapeutic catheterization. Lastly, safety aspects of MR-guided interventional procedures are presented.
Topics: Cardiac Catheterization; Fluoroscopy; Heart Defects, Congenital; Heart Diseases; Humans; Magnetic Resonance Angiography; Magnetic Resonance Imaging; Radiology, Interventional
PubMed: 10672617
DOI: 10.1007/s002469910010