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Role of Multiparametric MR Imaging in Malignancies of the Urogenital Tract

Alberto Diaz de Leon, Daniel Costa, Ivan Pedrosa
2016 Magnetic Resonance Imaging Clinics of North America  
Recently developed 3-D dual-echo Dixon-based acquisitions allow for acquisition of thinner, contiguous slices in a single breath-hold that can then be reconstructed into water, fat, IP, and OP imaging  ...  and opposed-phase (OP) images, or chemical shift imaging, of the abdomen are used in the renal mass and MRU protocols for the detection of intravoxel lipids.  ...  MCE MR imaging protocols are based on lower temporal, higher spatial-resolution acquisitions, which provide some level of temporal information while maintaining the high spatial resolution needed for characterization  ... 
doi:10.1016/j.mric.2015.08.009 pmid:26613881 pmcid:PMC6247808 fatcat:ah7ksntftrf5zkljyesajdhsga

Cardiac MR: From Theory to Practice

Tevfik F. Ismail, Wendy Strugnell, Chiara Coletti, Maša Božić-Iven, Sebastian Weingärtner, Kerstin Hammernik, Teresa Correia, Thomas Küstner
2022 Frontiers in Cardiovascular Medicine  
Further strategies to cope with challenging patients are discussed. (4) Imaging acceleration and reconstruction techniques are presented that enable acquisition of spatial, temporal, and parametric dynamics  ...  Commonly perceived artifacts and potential countermeasures are discussed for these methods. (2) CMR methods for identifying CVDs are illustrated.  ...  temporal or spatial resolution and/or volumetric coverage.  ... 
doi:10.3389/fcvm.2022.826283 pmid:35310962 pmcid:PMC8927633 fatcat:j3vd446nxnajvgajkhazwbvgia

Current Status and Future Perspectives of Magnetic Resonance High-Field Imaging: A Summary

Vivek Prabhakaran, Veena A. Nair, Benjamin P. Austin, Christian La, Thomas A. Gallagher, Yijing Wu, Donald G. McLaren, Guofan Xu, Patrick Turski, Howard Rowley
2012 Neuroimaging clinics of North America  
These techniques include functional MR (fMR) imaging, diffusion tensor imaging (DTI), cortical thickness assessment, arterial spin labeling (ASL) perfusion, white matter hyperintensity (WMH) lesion assessment  ...  , and advanced MR angiography (MRA).  ...  However, achieving high temporal and spatial resolution simultaneously is difficult because of the tradeoffs between temporal resolution, spatial resolution, and the SNR.  ... 
doi:10.1016/j.nic.2012.02.012 pmid:22548938 pmcid:PMC3586777 fatcat:aagwrp6ikfcu7dwekldomw3scy

Cardiovascular magnetic resonance artefacts

Pedro F Ferreira, Peter D Gatehouse, Raad H Mohiaddin, David N Firmin
2013 Journal of Cardiovascular Magnetic Resonance  
Nevertheless the anatomical complexity of the chest, together with cardiac and respiratory motion, and the fast flowing blood, present many challenges which can possibly translate into imaging artefacts  ...  The multitude of applications offered by CMR make it an increasing popular modality to study the heart and the surrounding vessels.  ...  Jennifer Keegan for her support with this manuscript.  ... 
doi:10.1186/1532-429x-15-41 pmid:23697969 pmcid:PMC3674921 fatcat:llspypktybcm5cyjiuup4h6mfa

An MRI protocol for anatomical and functional evaluation of the California sea lion brain [article]

Peter Cook, Vanessa Hoard, Sudipto Dolui, Blaise Frederick, Richard Redfern, Sophie Dennison, Barbie Halaska, Josh Bloom, Kris Kruse-Elliott, Emily Whitmer, Emily Trumbull, Greg Berns (+7 others)
2020 bioRxiv   pre-print
Prior studies on sea lions naturally exposed to DOM as adults have demonstrated hippocampal atrophy and altered mesial temporal connectivity.  ...  The protocol also facilitates screening for common neurological pathologies, including tumors, trauma and hemorrhages.  ...  Arterial spin labeling (ASL) MRI offers a non-invasive measure of rCBF with 2-3 mm spatial resolution, albeit with some caveats.  ... 
doi:10.1101/2020.08.02.233429 fatcat:5d5rwmoxkbdwphgkpztlxsgzbu

Looking inside man: medical imaging
Заглянуть в человека: визуализация в медицине

L. V. Osipov, M. B. Dolgushin, A. I. Mikhaylov, B. Epel, K. A. Rumyantsev, K. K. Turoverov, V. V. Verkhusha, E. Yu. Kulikova
2016 Bulletin of Russian State Medical University  
Those are often thought of as tools for anatomy visualization, but in fact, they are often highly effective for the assessment of the functional state of organs and tissues.  ...  Therefore, we have decided to touch upon the most common and interesting ones, such as ultrasound imaging, tomography, oximetry and fluorescence imaging.  ...  High concentrations of PCs are rarely found in nature; therefore, EPR imaging employs various spin probes to obtain images.  ... 
doi:10.24075/brsmu.2016-04-01 fatcat:a7xrpz26tvgjzejyrbj6qmpef4

Image registration in dynamic renal MRI—current status and prospects

Frank G. Zöllner, Amira Šerifović-Trbalić, Gordian Kabelitz, Marek Kociński, Andrzej Materka, Peter Rogelj
2019 Magnetic Resonance Materials in Physics, Biology and Medicine  
This comprises among others assessment of hemodynamic parameters by arterial spin labeling (ASL) or dynamic contrast-enhanced (DCE-) MRI.  ...  Renal image registration approaches could be grouped into (1) image acquisition techniques, (2) post-processing methods, or (3) a combination of image acquisition and post-processing approaches.  ...  To achieve high temporal and spatial resolution for renal DCE-MRI, fast imaging technique was used-3D throughtime radial GRAPPA [34] .  ... 
doi:10.1007/s10334-019-00782-y pmid:31598799 fatcat:vmbq3ehs55gctf3mmdxh4xppzu

Physics and applications of medical imaging

William R. Hendee
1999 Reviews of Modern Physics  
Medical imaging is the principal method for noninvasively obtaining anatomic and physiologic information about the human body.  ...  Images are important not only to the detection and diagnosis of disease and injury, but also to the design, delivery, and monitoring of treatment.  ...  with exquisite spatial resolution.  ... 
doi:10.1103/revmodphys.71.s444 fatcat:fej4x3vabfaxxp6vidhulwuwja

Physics and Applications of Medical Imaging [chapter]

William R. Hendee
1999 More Things in Heaven and Earth  
Medical imaging is the principal method for noninvasively obtaining anatomic and physiologic information about the human body.  ...  Images are important not only to the detection and diagnosis of disease and injury, but also to the design, delivery, and monitoring of treatment.  ...  with exquisite spatial resolution.  ... 
doi:10.1007/978-1-4612-1512-7_49 fatcat:yb4acgiswffvhhzd5h2ldubz5u

PET/MR: a paradigm shift

Florian C. Gaertner, Sebastian Furst, Markus Schwaiger
2013 Cancer Imaging  
This also leads to distinct differences between PET/CT and PET/MR not only regarding image interpretation but also concerning data acquisition, data processing and image reconstruction.  ...  This article provides an overview of the principal differences between PET/CT and PET/MR in terms of scanner design and technology, attenuation correction, speed, acquisition protocols, radiation exposure  ...  We thank Gaspar Delso for providing the PET/MR system designs shown in Figs. 13. We thank Alexander Drzezga for the neurology PET/MR figure and Stephan G. Nekolla for the cardiac PET/MR images.  ... 
doi:10.1102/1470-7330.2013.0005 pmid:23446110 pmcid:PMC3584300 fatcat:jiu6wewlbvbmjemtyctmhruxge

Abstracts (Continue in Part I)

1995 Proceedings of the International Society for Magnetic Resonance in Medicine  
of TI, T2, p, TR, TE, and B1 can be found.  ...  It is therefore possible under these conditions and knowing BI to calculate T I , T2, and p images in the presence of inhomogeneos BI fields.  ...  Acknowledgements: This work was supported by grant of the "Deutschc Forschungsgemeinschaft" (DFG) (DFG-Ha 1232 18-We thank S.Voll for her help.  ... 
doi:10.1002/mrmp.22419950202 fatcat:mg5plhp4qvabdbvpf3jlnih2ti

In vivo small animal imaging: Current status and future prospects

George C. Kagadis, George Loudos, Konstantinos Katsanos, Steve G. Langer, George C. Nikiforidis
2010 Medical Physics (Lancaster)  
Proposed hybrid approaches for diagnosis and targeted site-specific therapy are highlighted to offer an intriguing glimpse of the future.  ...  Whole-body small animal imaging is a particularly elegant and cost-effective experimental platform for the timely validation and commercialization of novel agents from the bench to the bedside.  ...  CT CONTRAST AGENTS Even though noncontrast-enhanced CT ͑NECT͒ has a high spatial and temporal resolution and high for elements with a high atomic number like bones, NECT imaging of soft tissues inherently  ... 
doi:10.1118/1.3515456 pmid:21302799 fatcat:l2tpdpl7dzbzvcriu2aonmi5le

Validation of myocardial perfusion and coronary flow reserve in rats using spin-labeling gradient echo imaging with a fluorescent microsphere technique as standard of reference

Alexis Jacquier, Franck Kober, Soksithikun Bun, Patrick J Cozzone, Monique Bernard
2009 Journal of Cardiovascular Magnetic Resonance  
The use of ICDs in this large patient population is still limited by high costs and possible adverse events including inappropriate discharges and progression of heart failure.  ...  Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  Conclusion: We have developed and technically validated an automatic delineation algorithm for multi-echo CMR images. The resulting contours are accurate and allow for accurate T2* quantification.  ... 
doi:10.1186/1532-429x-11-s1-p148 fatcat:c7rqcvetxzbsbibx6s4eusqy24

The use of volumetric analysis to improve cardiac magnetic resonance evaluation of left ventricular size and function

Victor Mor-Avi, Roberto M Lang, Johannes Niel, Regina Steringer-Macherbauer, Lynn Weinert, Lissa Sugeng, Rolf Baumann, Georg Schummers, Amit Patel, Hans-Joachim Nesser
2009 Journal of Cardiovascular Magnetic Resonance  
The use of ICDs in this large patient population is still limited by high costs and possible adverse events including inappropriate discharges and progression of heart failure.  ...  Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  Conclusion: We have developed and technically validated an automatic delineation algorithm for multi-echo CMR images. The resulting contours are accurate and allow for accurate T2* quantification.  ... 
doi:10.1186/1532-429x-11-s1-p223 fatcat:csgcz3szfvcmxjicjm62v4ykly

Does 3D volumetric carotid plaque imaging by cardiovascular MRI solve the mystery of the 'percent stenosis paradox'?

Robert WW Biederman, Ronald B Williams, Saundra B Grant, Geetha Rayarao, June A Yamrozik, Vikas K Rathi, Diane A Vido, David R Neff, Mark Doyle
2009 Journal of Cardiovascular Magnetic Resonance  
The use of ICDs in this large patient population is still limited by high costs and possible adverse events including inappropriate discharges and progression of heart failure.  ...  Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  Conclusion: We have developed and technically validated an automatic delineation algorithm for multi-echo CMR images. The resulting contours are accurate and allow for accurate T2* quantification.  ... 
doi:10.1186/1532-429x-11-s1-p22 fatcat:dtxalmpa6nfn7ar5rcntkni2fy
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