Search Results - "Alsop, David"

Effects of transcranial direct current stimulation (tDCS) on human regional cerebral blood flow by Zheng, Xin, Alsop, David C., Schlaug, Gottfried

“…Transcranial direct current stimulation (tDCS) can up- and down-regulate cortical excitability depending on current direction, however our abilities to measure…”
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Continuous flow-driven inversion for arterial spin labeling using pulsed radio frequency and gradient fields by Dai, Weiying, Garcia, Dairon, de Bazelaire, Cedric, Alsop, David C.

“…Continuous labeling by flow‐driven adiabatic inversion is advantageous for arterial spin labeling (ASL) perfusion studies, but details of the implementation,…”
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Magnetization transfer from inhomogeneously broadened lines: A potential marker for myelin by Varma, Gopal, Duhamel, Guillaume, de Bazelaire, Cedric, Alsop, David C.

“…Purpose To characterize a new approach to magnetization transfer (MT) imaging with improved specificity for myelinated tissues relative to conventional MT…”
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Influence of background suppression and retrospective realignment on free‐breathing renal perfusion measurement using pseudo‐continuous ASL by Taso, Manuel, Guidon, Arnaud, Alsop, David C.

“…Purpose To assess the influence of background suppression and retrospective realignment on physiological noise and image quality in free‐breathing renal…”
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Recommended implementation of arterial spin-labeled perfusion MRI for clinical applications: A consensus of the ISMRM perfusion study group and the European consortium for ASL in dementia by Alsop, David C., Detre, John A., Golay, Xavier, Günther, Matthias, Hendrikse, Jeroen, Hernandez-Garcia, Luis, Lu, Hanzhang, MacIntosh, Bradley J., Parkes, Laura M., Smits, Marion, van Osch, Matthias J. P., Wang, Danny J. J., Wong, Eric C., Zaharchuk, Greg

“…This review provides a summary statement of recommended implementations of arterial spin labeling (ASL) for clinical applications. It is a consensus of the…”
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Amide proton transfer imaging with improved robustness to magnetic field inhomogeneity and magnetization transfer asymmetry using saturation with frequency alternating RF irradiation by Scheidegger, Rachel, Vinogradov, Elena, Alsop, David C.

“…Amide proton transfer (APT) imaging has shown promise as an indicator of tissue pH and as a marker for brain tumors. Sources of error in APT measurements…”
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Fast‐spin‐echo versus rapid gradient‐echo for 3D magnetization‐prepared acquisitions: Application to inhomogeneous magnetization transfer by Taso, Manuel, Munsch, Fanny, Girard, Olivier M., Duhamel, Guillaume, Alsop, David C., Varma, Gopal

“…PurposeTo evaluate the benefits of fast spin echo (FSE) imaging over rapid gradient‐echo (RAGE) for magnetization‐prepared inhomogeneous magnetization transfer…”
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Arterial Spin Labeling Perfusion Imaging by Taso, Manuel, Alsop, David C.

“…Noninvasive imaging of tissue perfusion is a valuable tool for both research and clinical applications. Arterial spin labeling (ASL) is a contrast-free…”
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Tone Deafness: A New Disconnection Syndrome? by Loui, Psyche, Alsop, David, Schlaug, Gottfried

“…Communicating with one's environment requires efficient neural interaction between action and perception. Neural substrates of sound perception and production…”
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Effects of tDCS dose and electrode montage on regional cerebral blood flow and motor behavior by Shinde, Anant B, Lerud, Karl D, Munsch, Fanny, Alsop, David C, Schlaug, Gottfried

“…•tDCS-DOSE had a linear effect on finger sequence performance for both hands.•rCBF changes in both perirolandic ROIs demonstrated tDCS-DOSE effects, and left…”
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Reduced resolution transit delay prescan for quantitative continuous arterial spin labeling perfusion imaging by Dai, Weiying, Robson, Philip M, Shankaranarayanan, Ajit, Alsop, David C.

“…Arterial spin labeling perfusion MRI can suffer from artifacts and quantification errors when the time delay between labeling and arrival of labeled blood in…”
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Arterial Spin Labeling: Key Concepts and Progress Towards Use as a Clinical Tool by Jaafar, Narjes, Alsop, David C.

“…Arterial spin labeling (ASL), a non-invasive MRI technique, has emerged as a valuable tool for researchers that can measure blood flow and related parameters…”
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Volumetric measurement of perfusion and arterial transit delay using hadamard encoded continuous arterial spin labeling by Dai, Weiying, Shankaranarayanan, Ajit, Alsop, David C.

“…Creating images of the transit delay from the labeling location to image tissue can aid the optimization and quantification of arterial spin labeling perfusion…”
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The short-term and long-term relationship between delirium and cognitive trajectory in older surgical patients by Inouye, Sharon K, Marcantonio, Edward R, Kosar, Cyrus M, Tommet, Douglas, Schmitt, Eva M, Travison, Thomas G, Saczynski, Jane S, Ngo, Long H, Alsop, David C, Jones, Richard N

“…Abstract Introduction As the relationship between delirium and long-term cognitive decline has not been well-explored, we evaluated this association in a…”
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Inhomogeneous magnetization transfer imaging: Concepts and directions for further development by Alsop, David C., Ercan, Ece, Girard, Olivier M., Mackay, Alex L., Michal, Carl A., Varma, Gopal, Vinogradov, Elena, Duhamel, Guillaume

“…Off‐resonance radio frequency irradiation can induce the ordering of proton spins in the dipolar fields of their neighbors, in molecules with restricted…”
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Contributors to contrast between glioma and brain tissue in chemical exchange saturation transfer sensitive imaging at 3 Tesla by SCHEIDEGGER, Rachel, WONG, Eric T, ALSOP, David C

“…Off-resonance saturation transfer images have shown intriguing differences in intensity in glioma compared to normal brain tissues. Interpretation of these…”
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Regional and depth-dependence of cortical blood-flow assessed with high-resolution Arterial Spin Labeling (ASL) by Taso, Manuel, Munsch, Fanny, Zhao, Li, Alsop, David C

“…Methods for imaging of cerebral blood flow do not typically resolve the cortex and thus underestimate flow. However, recent work with high-resolution MRI has…”
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Improving the robustness of pseudo‐continuous arterial spin labeling to off‐resonance and pulsatile flow velocity by Zhao, Li, Vidorreta, Marta, Soman, Salil, Detre, John A., Alsop, David C.

“…Purpose To improve pseudo‐continuous arterial spin labeling (PCASL) robustness to off‐resonance and pulsatile blood flow velocity. Methods Bloch equations were…”
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Characterization of the cortical myeloarchitecture with inhomogeneous magnetization transfer imaging (ihMT) by Munsch, Fanny, Varma, Gopal, Taso, Manuel, Girard, Olivier, Guidon, Arnaud, Duhamel, Guillaume, Alsop, David C

“…•Inhomogeneous magnetization transfer can characterize cortical myeloarchitecture.•Cortical ihMT and MT are correlated but regional differences exist.•The…”
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Contributors to contrast between glioma and brain tissue in chemical exchange saturation transfer sensitive imaging at 3Tesla by Scheidegger, Rachel, Wong, Eric T., Alsop, David C.

“…Off-resonance saturation transfer images have shown intriguing differences in intensity in glioma compared to normal brain tissues. Interpretation of these…”
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