Matt Bernstein, Editor-in-Chief Emeritus.
PMID: 31587359 [PubMed - in process] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - October 8, 2019 Category: Radiology Authors: Jezzard P Tags: Magn Reson Med Source Type: research

Erratum to: In vivo imaging of insulin-secreting human pancreatic ductal cells using MRI reporter gene technique: a feasibility study. (Magn Reson Med 2019;82:763-774).
Authors: PMID: 31347744 [PubMed - in process] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - July 29, 2019 Category: Radiology Tags: Magn Reson Med Source Type: research

Erratum to: Algorithm for fast monoexponential fitting based on Auto-Regression on Linear Operations (ARLO) of data (Magn Reson Med 2015;73:843-850).
Authors: PMID: 31301108 [PubMed - in process] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - July 14, 2019 Category: Radiology Tags: Magn Reson Med Source Type: research

Erratum to: Dephasing optimization through coherence order pathway selection (DOTCOPS) for improved crusher schemes in MR spectroscopy (Magn Reson Med. 2019;81:2209-2222).
PMID: 31074112 [PubMed - in process] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 11, 2019 Category: Radiology Authors: Landheer K, Juchem C Tags: Magn Reson Med Source Type: research

Accelerated whole-brain perfusion imaging using a simultaneous multislice spin-echo and gradient-echo sequence with joint virtual coil reconstruction.
CONCLUSION: The method presented shows the advantage of using a joint virtual coil-GRAPPA reconstruction to allow for high acceleration factors while maintaining reliable image quality for quantitative perfusion mapping, with the potential to improve tumor diagnostics and monitoring. PMID: 31069861 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 8, 2019 Category: Radiology Authors: Manhard MK, Bilgic B, Liao C, Han S, Witzel T, Yen YF, Setsompop K Tags: Magn Reson Med Source Type: research

Positive-contrast susceptibility imaging based on first-order primal-dual optimization.
CONCLUSION: A susceptibility-based positive-contrast imaging technique by PD algorithm was proposed. The PD approach has more superior performance than other algorithms in terms of reconstruction time and accuracy for imaging the metallic interventional devices. PMID: 31066102 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 7, 2019 Category: Radiology Authors: Shi C, Cheng J, Xie G, Su S, Chang Y, Chen H, Liu X, Wang H, Liang D Tags: Magn Reson Med Source Type: research

Vessel-specific quantification of neonatal cerebral venous oxygenation.
CONCLUSION: The aTRUPC MRI has the potential to provide vessel-specific quantification of cerebral Yv in neonates. PMID: 31066104 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 7, 2019 Category: Radiology Authors: Jiang D, Lu H, Parkinson C, Su P, Wei Z, Pan L, Tekes A, Huisman TAGM, Golden WC, Liu P Tags: Magn Reson Med Source Type: research

Toward "plug and play" prospective motion correction for MRI by combining observations of the time varying gradient and static vector fields.
CONCLUSIONS: The WRAD is simple to set up and use, with well-defined measurement variance. This could enable "plug and play" prospective motion correction if pulse sequence independence is achieved. PMID: 31066109 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 7, 2019 Category: Radiology Authors: van Niekerk A, van der Kouwe A, Meintjes E Tags: Magn Reson Med Source Type: research

A GRAPPA algorithm for arbitrary 2D/3D non-Cartesian sampling trajectories with rapid calibration.
CONCLUSIONS: This paper introduces a general 3D non-Cartesian GRAPPA that is fast enough for practical use on today's computers. It is a direct generalization of original GRAPPA to non-Cartesian scenarios. The method should be particularly useful in dynamic imaging where a large number of frames are reconstructed from a single set of ACS data. PMID: 31050011 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 3, 2019 Category: Radiology Authors: Luo T, Noll DC, Fessler JA, Nielsen JF Tags: Magn Reson Med Source Type: research

Using bidirectional chemical exchange for improved hyperpolarized [13 C]bicarbonate pH imaging.
CONCLUSION: The novel multi-EPI pulse sequence can boost CO2 imaging signal in hyperpolarized 13 C bicarbonate imaging while introducing minimal pH bias, helping to surmount a major hurdle in hyperpolarized pH imaging. PMID: 31050049 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 3, 2019 Category: Radiology Authors: Korenchan DE, Gordon JW, Subramaniam S, Sriram R, Baligand C, VanCriekinge M, Bok R, Vigneron DB, Wilson DM, Larson PEZ, Kurhanewicz J, Flavell RR Tags: Magn Reson Med Source Type: research

Production of highly polarized [1-13 C]acetate by rapid decarboxylation of [2-13 C]pyruvate - application to hyperpolarized cardiac spectroscopy and imaging.
CONCLUSION: Decarboxylation of hyperpolarized [2-13 C]pyruvate enables the efficient production of highly polarized [1-13 C]acetate that is applicable to study short-chain fatty acid metabolism in the in vivo heart. PMID: 31045272 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 2, 2019 Category: Radiology Authors: Steinhauser J, Wespi P, Kwiatkowski G, Kozerke S Tags: Magn Reson Med Source Type: research

Network Accelerated Motion Estimation and Reduction (NAMER): Convolutional neural network guided retrospective motion correction using a separable motion model.
CONCLUSION: The separability and convergence improvements afforded by the combined convolutional neural network+model-based method shows the potential for meaningful postacquisition motion mitigation in clinical MRI. PMID: 31045278 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 2, 2019 Category: Radiology Authors: Haskell MW, Cauley SF, Bilgic B, Hossbach J, Splitthoff DN, Pfeuffer J, Setsompop K, Wald LL Tags: Magn Reson Med Source Type: research

Compressed Sensing 3D-GRASE for faster High-Resolution MRI.
CONCLUSIONS: CSPI 3D-GRASE reduces acquisition time compared to a CSPI 3DFSE acquisition, preserving image quality. The design of the sampling pattern is crucial for image quality in CSPI 3D-GRASE image acquisitions. PMID: 31045280 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 2, 2019 Category: Radiology Authors: Cristobal-Huerta A, Poot DHJ, Vogel MW, Krestin GP, Hernandez-Tamames JA Tags: Magn Reson Med Source Type: research

A 3D k-space Fourier encoding and reconstruction framework for simultaneous multi-slab acquisition.
CONCLUSION: It is demonstrated that the joint application of RF and gradient encoding enables SMSlab within a 3D Fourier encoding framework. Images with high isotropic resolution can be reconstructed, and further acceleration is also applicable. The proposed SMSlab 3D k-space can be valuable for both high-resolution and high-efficiency diffusion and functional MRI. PMID: 31045283 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - May 2, 2019 Category: Radiology Authors: Dai E, Wu Y, Wu W, Guo R, Liu S, Miller KL, Zhang Z, Guo H Tags: Magn Reson Med Source Type: research

Whole-brain B1 -mapping using three-dimensional DREAM.
CONCLUSIONS: 3DREAM provides a whole-brain flip angle map in a few seconds or individual maps for an 8-channel array in about a minute. PMID: 31038244 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 30, 2019 Category: Radiology Authors: Ehses P, Brenner D, Stirnberg R, Pracht ED, Stöcker T Tags: Magn Reson Med Source Type: research

Separation of water and fat signal in whole-body gradient echo scans using convolutional neural networks.
CONCLUSION: It is possible to perform water-fat signal separation of whole-body gradient echo scans using convolutional neural networks. Separation was possible using only 1 echo, although using more echoes improved the results. PMID: 31033022 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 29, 2019 Category: Radiology Authors: Andersson J, Ahlström H, Kullberg J Tags: Magn Reson Med Source Type: research

Dynamic water/fat separation and B 0 inhomogeneity mapping-joint estimation using undersampled triple-echo multi-spoke radial FLASH.
CONCLUSIONS: The combination of a triple-echo acquisition and joint reconstruction technique provides a practical solution to time-resolved and motion robust water/fat separation at high spatial and temporal resolution. PMID: 31033051 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 29, 2019 Category: Radiology Authors: Tan Z, Voit D, Kollmeier JM, Uecker M, Frahm J Tags: Magn Reson Med Source Type: research

Transverse relaxation-based assessment of mammographic density and breast tissue composition by single-sided portable NMR.
We present a novel approach to quantification of MD in breast tissue using single-sided portable NMR. Its development was motivated by the low cost of portable-NMR instrumentation, the suitability for measurements in vivo, and the absence of ionizing radiation. METHODS: Five breast slices were obtained from three patients undergoing prophylactic mastectomy or breast reduction surgery. Carr-Purcell-Meiboom-Gill (CPMG) relaxation curves were measured from (1) regions of high and low MD (HMD and LMD, respectively) in the full breast slices; (2) the same regions excised from the full slices; and (3) excised samples after ...
Source: Magnetic Resonance in Medicine - April 29, 2019 Category: Radiology Authors: Ali TS, Tourell MC, Hugo HJ, Pyke C, Yang S, Lloyd T, Thompson EW, Momot KI Tags: Magn Reson Med Source Type: research

Spread-spectrum magnetic resonance imaging.
CONCLUSION: Spread-spectrum MRI represents a new approach to accelerate image acquisition, and it can be independently combined with traditional parallel imaging techniques based on local receive coil sensitivities. PMID: 31025413 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 26, 2019 Category: Radiology Authors: Scheffler K, Loktyushin A, Bause J, Aghaeifar A, Steffen T, Schölkopf B Tags: Magn Reson Med Source Type: research

Response to Letter to the Editor: "Nomenclature for real-time magnetic resonance imaging".
Response to Letter to the Editor: "Nomenclature for real-time magnetic resonance imaging". Magn Reson Med. 2019 Apr 26;: Authors: Nayak KS PMID: 31025418 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 26, 2019 Category: Radiology Authors: Nayak KS Tags: Magn Reson Med Source Type: research

On probing intravoxel incoherent motion in the heart-spin-echo versus stimulated-echo DWI.
CONCLUSION: Given the short encoding time of spin-echo-based DWI/DTI sequences, a limited perfusion sensitivity results, in particular in combination with motion-compensated diffusion gradients. In contrast, stimulated-echo based DWI/DTI has the potential to identify perfusion changes in cardiac IVIM in vivo. PMID: 31025435 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 26, 2019 Category: Radiology Authors: Spinner GR, Stoeck CT, Mathez L, von Deuster C, Federau C, Kozerke S Tags: Magn Reson Med Source Type: research

Development of a fast-scan EPR imaging system for highly accelerated free radical imaging.
CONCLUSION: Fast-scan EPR imaging can greatly facilitate the efficient and precise mapping of the spatial distribution of free radical and other paramagnetic probes in living systems. PMID: 31020713 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 25, 2019 Category: Radiology Authors: Samouilov A, Ahmad R, Boslett J, Liu X, Petryakov S, Zweier JL Tags: Magn Reson Med Source Type: research

Assessing test-retest reliability of phase contrast MRI for measuring cerebrospinal fluid and cerebral blood flow dynamics.
CONCLUSION: This study shows that CSF and CBF flow can be reliably measured at the CA and C2-C3 area using PC-MRI, making it a promising tool for studying flow dynamics in the central nervous system. PMID: 31020721 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 25, 2019 Category: Radiology Authors: Sakhare AR, Barisano G, Pa J Tags: Magn Reson Med Source Type: research

Dynamic-flip-angle ECG-gating with nuisance signal regression improves resting-state BOLD functional connectivity mapping by reducing cardiogenic noise.
CONCLUSION: GDFA with NSR improves mapping of the resting-state functional connectivity of the basal-brain regions by reducing cardiogenic noise. PMID: 31016782 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 24, 2019 Category: Radiology Authors: Hu C, Tokoglu F, Scheinost D, Qiu M, Shen X, Peters DC, Galiana G, Constable RT Tags: Magn Reson Med Source Type: research

Application of radial GRAPPA techniques to single- and multislice dynamic speech MRI using a 16-channel neurovascular coil.
CONCLUSION: This study confirmed: (1) the feasibility of using rGRAPPA and h-rGRAPPA in single- and multislice dynamic speech MRI, (2) that single-slice speech imaging at a frame rate higher than 15 fps and with adequate image quality can be achieved using these radial GRAPPA techniques. PMID: 31016802 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 24, 2019 Category: Radiology Authors: Ruthven M, Freitas AC, Boubertakh R, Miquel ME Tags: Magn Reson Med Source Type: research

Conditional generative adversarial network for 3D rigid-body motion correction in MRI.
CONCLUSION: The images predicted by the conditional generative adversarial network have quantitatively and qualitatively improved image quality compared to the motion-corrupted images. PMID: 31006909 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 22, 2019 Category: Radiology Authors: Johnson PM, Drangova M Tags: Magn Reson Med Source Type: research

Accelerated 3D T2 w-imaging of the prostate with 1-millimeter isotropic resolution in less than 3 minutes.
CONCLUSION: 3D T2 w images of the prostate with 1-mm isotropic resolution can be acquired in less than 3 min, with image quality that is comparable to a clinical standard 3D TSE sequence but only takes a third of the acquisition time. PMID: 31006906 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 21, 2019 Category: Radiology Authors: Vidya Shankar R, Roccia E, Cruz G, Neji R, Botnar R, Prezzi D, Goh V, Prieto C, Dregely I Tags: Magn Reson Med Source Type: research

Free-breathing cine imaging with motion-corrected reconstruction at 3T using SPiral Acquisition with Respiratory correction and Cardiac Self-gating (SPARCS).
CONCLUSION: SPARCS successfully images cardiac function without the need for ECG gating or breath-holding. With an 8-second data acquisition per slice, whole-heart cine images with clinically acceptable spatial and temporal resolution and image quality can be acquired in
Source: Magnetic Resonance in Medicine - April 21, 2019 Category: Radiology Authors: Zhou R, Yang Y, Mathew RC, Mugler JP, Weller DS, Kramer CM, Ahmed AH, Jacob M, Salerno M Tags: Magn Reson Med Source Type: research

4D flow imaging with 2D-selective excitation.
CONCLUSION: A reduced field-of-excitation allows to limit the FOV and therefore shorten 4D flow acquisition times while preserving successful velocity quantification. PMID: 31002417 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 19, 2019 Category: Radiology Authors: Wink C, Ferrazzi G, Bassenge JP, Flassbeck S, Schmidt S, Schaeffter T, Schmitter S Tags: Magn Reson Med Source Type: research

Multiple interleaved mode saturation (MIMOSA) for B1 + inhomogeneity mitigation in chemical exchange saturation transfer.
CONCLUSION: Multiple interleaved mode saturation can be used as a simple method to mitigate B 1 + inhomogeneity effects in CEST MRI at ultra-high magnetic field strengths. Compared to previous B 1 + correction methods, acquisition time can be reduced because an additional scan, usually required for B 1 + correction, can be omitted. PMID: 31002432 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 19, 2019 Category: Radiology Authors: Liebert A, Zaiss M, Gumbrecht R, Tkotz K, Linz P, Schmitt B, Laun FB, Doerfler A, Uder M, Nagel AM Tags: Magn Reson Med Source Type: research

Proton exchange in aqueous urea solutions measured by water-exchange (WEX) NMR spectroscopy and chemical exchange saturation transfer (CEST) imaging in vitro.
CONCLUSIONS: By means of the WEX-spectroscopy, the kinetic parameters of the proton exchange in urea solutions have been determined. It was also possible to estimate the exchange rates of urea in a broad range of pH values using the CEST method at a clinical scanner. PMID: 31004385 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 19, 2019 Category: Radiology Authors: Stabinska J, Neudecker P, Ljimani A, Wittsack HJ, Lanzman RS, Müller-Lutz A Tags: Magn Reson Med Source Type: research

Driving mutually coupled gradient array coils in magnetic resonance imaging.
CONCLUSION: Bench-top and MRI experiments demonstrate the feasibility of the proposed circuit model and analytical formulas to drive the mutually coupled gradient coils. PMID: 30989710 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 16, 2019 Category: Radiology Authors: Ertan K, Taraghinia S, Atalar E Tags: Magn Reson Med Source Type: research

Porous medium 3D flow simulation of contrast media washout in cardiac MRI reflects myocardial injury.
Abstract PURPOSE: Myocardial blood-flow simulation based on laws of fluid mechanics is a valuable tool for understanding tissue behavior. Our aim is to evaluate the ability of a porous-media flow model approach to reflect disturbed washout of contrast media (CM) from the myocardium as observed by cardiovascular MR. METHODS: A coupled advection-diffusion model is used to describe the CM flow in the vascular and extravascular space as separate compartments. Their exchange of CM is controlled by the exchange rate ExR , which in turn determines the washout behavior. We fitted simulations to CM concentration measu...
Source: Magnetic Resonance in Medicine - April 16, 2019 Category: Radiology Authors: Riazy L, Schaeffter T, Olbrich M, Schueler J, von Knobelsdorff-Brenkenhoff F, Niendorf T, Schulz-Menger J Tags: Magn Reson Med Source Type: research

Accelerated interleaved spiral-IDEAL imaging of hyperpolarized 129 Xe for parametric gas exchange mapping in humans.
CONCLUSION: Dissolved HP 129 Xe spiral-IDEAL imaging for gas exchange mapping is feasible in humans using a single breath-hold. Accelerated gas exchange mapping is also shown to be feasible but requires further improvements to increase quantitative accuracy. PMID: 30989730 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 16, 2019 Category: Radiology Authors: Zanette B, Santyr G Tags: Magn Reson Med Source Type: research

Combining multiband slice selection with consistent k-t-space EPSI for accelerated spectral imaging.
CONCLUSION: The consistent k-t-space EPSI can be used to accelerate MRSI or, alternatively, double its spectral width. Adding dual-band CAIPIRINHA further accelerates the acquisition by a factor of 2. PMID: 30990227 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 16, 2019 Category: Radiology Authors: Schmidt R, Seginer A, Tal A Tags: Magn Reson Med Source Type: research

Free-base porphyrins as CEST MRI contrast agents with highly upfield shifted labile protons.
CONCLUSION: These results highlight the capabilities of free-base porphyrins and chlorin as highly upfield CEST MRI agents and provide a new scaffold that can be integrated into a variety of diagnostic or theranostic agents for biomedical applications. PMID: 30968442 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 10, 2019 Category: Radiology Authors: Zhang X, Yuan Y, Li S, Zeng Q, Guo Q, Liu N, Yang M, Yang Y, Liu M, McMahon MT, Zhou X Tags: Magn Reson Med Source Type: research

Magnetic resonance elastography of brain: Comparison between anisotropic and isotropic stiffness and its correlation to age.
CONCLUSION: This study demonstrated a change in isotropic and anisotropic stiffness with age in different regions of the brain along with a correlation of anisotropic stiffness to isotropic stiffness. PMID: 30957304 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 8, 2019 Category: Radiology Authors: Kalra P, Raterman B, Mo X, Kolipaka A Tags: Magn Reson Med Source Type: research

Task-based assessment of a convolutional neural network for segmenting breast lesions for radiomic analysis.
CONCLUSION: A CNN architecture is able to provide DCE-MRI breast lesion segmentations which are suitable for input to our radiomics model. Moreover, the previously established radiomics model and CNN can be accurately trained end-to-end using ground truth data provided by distinct experts. PMID: 30957936 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 8, 2019 Category: Radiology Authors: Spuhler KD, Ding J, Liu C, Sun J, Serrano-Sosa M, Moriarty M, Huang C Tags: Magn Reson Med Source Type: research

Evaluation of short folded dipole antennas as receive elements of ultra-high-field human head array.
Abstract PURPOSE: To improve the receive (Rx) performance of a human head transceiver (TxRx) array at 9.4T without compromising its transmit (Tx) performance, a novel 16-element array was developed, constructed, and tested. METHODS: We designed and constructed a phased array, which consists of 8 TxRx surface loops placed in a single row and circumscribing a head, and 8 Rx-only short folded dipole antennas. Dipoles were positioned along the central axis of each transceiver loop perpendicular to its surface. We evaluated the effect of Rx dipoles on the Tx efficiency of the array and maximum local specific absor...
Source: Magnetic Resonance in Medicine - April 7, 2019 Category: Radiology Authors: Avdievich NI, Solomakha G, Ruhm L, Scheffler K, Henning A Tags: Magn Reson Med Source Type: research

Influence of respiration-induced B0 variations in real-time phase-contrast echo planar imaging of the cervical cerebrospinal fluid.
CONCLUSION: Respiration-induced B0 variations result in dynamic background phases in real-time PCEPI velocity quantifications of the CSF in the cervical spine. The current work underlines that these background phases need to be corrected to avoid confounding effects. PMID: 30957288 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 7, 2019 Category: Radiology Authors: Peters K, Weiss K, Maintz D, Giese D Tags: Magn Reson Med Source Type: research

In vivo imaging of insulin-secreting human pancreatic ductal cells using MRI reporter gene technique: A feasibility study.
CONCLUSION: OATP1B3 can be used as a safe and feasible in vivo MRI gene reporter for human pancreatic ductal cells. PMID: 30957300 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 7, 2019 Category: Radiology Authors: Wu MR, Hsiao JK, Liu HM, Huang YY, Tseng YJ, Chou PT, Weng TI, Yang CY Tags: Magn Reson Med Source Type: research

Volumetric abdominal perfusion measurement using a pseudo-randomly sampled 3D fast-spin-echo (FSE) arterial spin labeling (ASL) sequence and compressed sensing reconstruction.
CONCLUSIONS: High-quality isotropic ASL abdominal perfusion volumes can be obtained in healthy volunteers with a VD-FSE and CS reconstruction. This lays the groundwork for future developments toward whole abdomen free-breathing non-contrast perfusion imaging. PMID: 30953396 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 5, 2019 Category: Radiology Authors: Taso M, Zhao L, Guidon A, Litwiller DV, Alsop DC Tags: Magn Reson Med Source Type: research

The influence of spatial resolution on the spectral quality and quantification accuracy of whole-brain MRSI at 1.5T, 3T, 7T, and 9.4T.
CONCLUSION: MRSI data quality benefits from increased spatial resolution particularly at higher B0 , and leads to more reliable metabolite quantification. In conjunction with the development of better B0 shimming hardware, this will enable robust whole-brain MRSI at ultra-high field. PMID: 30932248 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - April 1, 2019 Category: Radiology Authors: Motyka S, Moser P, Hingerl L, Hangel G, Heckova E, Strasser B, Eckstein K, Daniel Robinson S, Poser BA, Gruber S, Trattnig S, Bogner W Tags: Magn Reson Med Source Type: research

Ultrafast (milliseconds), multidimensional RF pulse design with deep learning.
CONCLUSION: Relatively effortless training of multidimensional RF pulses, based on non-MRI-related inputs, but working in an MRI setting still, has been demonstrated. The prediction time of a few milliseconds renders real-time updates of advanced RF pulses possible. PMID: 30927308 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 30, 2019 Category: Radiology Authors: Vinding MS, Skyum B, Sangill R, Lund TE Tags: Magn Reson Med Source Type: research

Sodium MRI revisited.
PMID: 30927278 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 29, 2019 Category: Radiology Authors: Burstein D, Springer CS Tags: Magn Reson Med Source Type: research

Comparison between 8- and 32-channel phased-array receive coils for in vivo hyperpolarized 13 C imaging of the human brain.
CONCLUSION: The 8- and 32-channel hardware configurations each have advantages in particular brain anatomy. PMID: 30927300 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 29, 2019 Category: Radiology Authors: Autry AW, Gordon JW, Carvajal L, Mareyam A, Chen HY, Park I, Mammoli D, Vareth M, Chang SM, Wald LL, Xu D, Vigneron DB, Nelson SJ, Li Y Tags: Magn Reson Med Source Type: research

Motion corrected water/fat whole-heart coronary MR angiography with 100% respiratory efficiency.
Abstract PURPOSE: To develop a framework for respiratory motion-corrected 3D whole-heart water/fat coronary MR angiography (CMRA) at 3T with reduced and predictable scan time. METHODS: A 3D dual-echo acquisition and respiratory motion-corrected reconstruction framework for water/fat CMRA imaging was developed. The acquisition sequence integrates a 2D dual-echo image navigator (iNAV), enabling 100% respiratory scan efficiency. Respiratory motion estimated from both the 2D iNAVs and the 3D data itself is used to produce nonrigid motion-corrected water/fat CMRA images. A first study to investigate which iNAV (wa...
Source: Magnetic Resonance in Medicine - March 29, 2019 Category: Radiology Authors: Munoz C, Cruz G, Neji R, Botnar RM, Prieto C Tags: Magn Reson Med Source Type: research

Relaxation-compensated APT and rNOE CEST-MRI of human brain tumors at 3 T.
CONCLUSION: The presented acquisition protocol allows relaxation-compensated CEST-MRI at 3 T with a 3D coverage of the human brain. Translation to a clinically relevant magnetic field strength of 3 T opens the door to trials with a large number of participants, thus enabling a comprehensive assessment of the clinical relevance of relaxation compensation in CEST-MRI. PMID: 30927313 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 29, 2019 Category: Radiology Authors: Goerke S, Soehngen Y, Deshmane A, Zaiss M, Breitling J, Boyd PS, Herz K, Zimmermann F, Klika KD, Schlemmer HP, Paech D, Ladd ME, Bachert P Tags: Magn Reson Med Source Type: research

NMR quantification of lactate production and efflux and glutamate fractional enrichment in living human prostate biopsies cultured with [1,6-13 C2 ]glucose.
Abstract PURPOSE: Image-guided prostate biopsies are routinely acquired in the diagnosis and treatment monitoring of prostate cancer, yielding useful tissue for identifying metabolic biomarkers and therapeutic targets. We developed an optimized biopsy tissue culture protocol in combination with [1,6-13 C2 ]glucose labeling and quantitative high-resolution NMR to measure glycolysis and tricarboxcylic acid (TCA) cycle activity in freshly acquired living human prostate biopsies. METHODS: We acquired 34 MRI-ultrasound fusion-guided prostate biopsies in vials on ice from 22 previously untreated patients. Within 15...
Source: Magnetic Resonance in Medicine - March 28, 2019 Category: Radiology Authors: Bancroft Brown J, Sriram R, VanCriekinge M, Delos Santos R, Sun J, Delos Santos J, Tabatabai ZL, Shinohara K, Nguyen H, Peehl DM, Kurhanewicz J Tags: Magn Reson Med Source Type: research

Development and evaluation of a 16-channel receive-only RF coil to improve 7T ultra-high field body MRI with focus on the spine.
CONCLUSION: The novel 16-channel Rx-array as an add-on to multichannel TxRx RF coil configurations provides increased signal-to-noise ratio, lower g-factors, and thus improves 7T ultra-high field body MR imaging. PMID: 30924181 [PubMed - as supplied by publisher] (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 28, 2019 Category: Radiology Authors: Rietsch SHG, Brunheim S, Orzada S, Voelker MN, Maderwald S, Bitz AK, Gratz M, Ladd ME, Quick HH Tags: Magn Reson Med Source Type: research