Publications by authors named "Michael Helle"

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Perfusion Territory Shifts in Cerebrovascular Diseases Measured by Super-Selective Arterial Spin Labeling.
Gabriel Hoffmann, Miriam Reichert, Jens Göttler, Michael Helle, Lena Schmitzer

J Neuroimaging· November 2025

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Beaconless adaptive optics for atmospheric laser propagation with multi-plane convolutional neural network.
Gregory P DiComo, George A Witt, Joshua J Isaacs, Michael H Helle

Opt Express· July 2025

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Improved temporal resolution and acceleration on 4D-MR angiography based on superselective pseudo-continuous arterial spin labeling combined with CENTRA-keyhole and view-sharing (4D-S-PACK) using an interpolation algorithm on the temporal axis and compressed sensing-sensitivity encoding (CS-SENSE).
Hiroo Murazaki, Tatsuhiro Wada, Osamu Togao, Makoto Obara, Michael Helle

Magn Reson Imaging· June 2024

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Effect of General Anesthesia on Cerebral Blood Flow Measured by Arterial Spin Labeling: A Retrospective Study.
Monika Huhndorf, Christine Eimer, Tobias Becher, Hajrullah Ahmeti, Olav Jansen, Michael Helle

J Magn Reson Imaging· August 2023

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Non-invasive perfusion territory quantification and time-resolved angiography by arterial spin labeling in a patient with a large right-hemispheric AVM: case report.
Moritz R Hernandez Petzsche, Miriam Reichert, Gabriel Hoffmann, Hans Liebl, Michael Helle

J Neurol· August 2022

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Measurements of Functional Network Connectivity Using Resting State Arterial Spin Labeling During Neurosurgery.
Thomas Lindner, Hajrullah Ahmeti, Michael Helle, Olav Jansen, Jens Fiehler

World Neurosurg· January 2022

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Optimization of 4D-MR angiography based on superselective pseudo-continuous arterial spin labeling combined with CENTRA-keyhole and view-sharing (4D-S-PACK) for vessel-selective visualization of the internal carotid artery and vertebrobasilar artery systems.
Hiroo Murazaki, Tatsuhiro Wada, Osamu Togao, Makoto Obara, Michael Helle

Magn Reson Imaging· January 2022

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Optical Kerr effect field measurements and ad hoc engineering model comparisons.
Larry B Stotts, Antonio Oliver, Gregory DiComo, Michael Helle, Jeremy Young

Opt Express· August 2021

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Extending the Population Health Workforce Through Service Learning Internships During COVID: A Community Case Study.
Jeffrey Belkora, Tia Weinberg, Jasper Murphy, Sneha Karthikeyan, Henrietta Tran, Michael Helle

Front Public Health· July 2021

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Super-selective ASL and 4D ASL-based MR Angiography in a Patient with Moyamoya Disease : Case Report.
Nico Sollmann, Hans Liebl, Christine Preibisch, Claus Zimmer, Michael Helle

Clin Neuroradiol· June 2021

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Vessel-selective 4D-MR angiography using super-selective pseudo-continuous arterial spin labeling may be a useful tool for assessing brain AVM hemodynamics.
Osamu Togao, Makoto Obara, Michael Helle, Koji Yamashita, Kazufumi Kikuchi

Eur Radiol· December 2020

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Improved selective visualization of internal and external carotid artery in 4D-MR angiography based on super-selective pseudo-continuous arterial spin labeling combined with CENTRA-keyhole and view-sharing (4D-S-PACK).
Makoto Obara, Osamu Togao, Michael Helle, Hiroo Murazaki, Tatsuhiro Wada

Magn Reson Imaging· November 2020

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Nonlinear underwater propagation of picosecond ultraviolet laser beams.
Yu-Hsin Chen, J Ryan Peterson, Luke A Johnson, Theodore G Jones, Bahman Hafizi, Michael H Helle

Opt Lett· August 2020

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Segmentation-Based Blood Flow Parameter Refinement in Cerebrovascular Structures Using 4-D Arterial Spin Labeling MRA.
Renzo Phellan, Thomas Lindner, Michael Helle, Alexandre X Falcao, Clarissa L Yasuda

IEEE Trans Biomed Eng· July 2020

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Ternary encoded super-selective arterial spin labeling for time-resolved flow territory mapping.
Thomas Lindner, Olav Jansen, Michael Helle

Phys Med Biol· May 2020

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Non-invasive qualitative and semiquantitative presurgical investigation of the feeding vasculature to intracranial meningiomas using superselective arterial spin labeling.
Ulf Jensen-Kondering, Michael Helle, Thomas Lindner, Olav Jansen, Arya Nabavi

PLoS One· December 2019

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A methodology for generating four-dimensional arterial spin labeling MR angiography virtual phantoms.
Renzo Phellan, Thomas Lindner, Michael Helle, Alexandre X Falcão, Thomas W Okell

Med Image Anal· August 2019

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Optimized super-selective Arterial Spin Labeling for quantitative flow territory mapping.
Thomas Lindner, Olav Jansen, Michael Helle

Magn Reson Imaging· November 2018

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Advances in arterial spin labelling MRI methods for measuring perfusion and collateral flow.
Matthias Jp van Osch, Wouter M Teeuwisse, Zhensen Chen, Yuriko Suzuki, Michael Helle

J Cereb Blood Flow Metab· September 2018

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Automatic Temporal Segmentation of Vessels of the Brain Using 4D ASL MRA Images.
Renzo Phellan, Thomas Lindner, Michael Helle, Alexandre X Falcao, Nils Daniel Forkert

IEEE Trans Biomed Eng· July 2018

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Simultaneous acquisition of perfusion image and dynamic MR angiography using time-encoded pseudo-continuous ASL.
Yuriko Suzuki, Michael Helle, Peter Koken, Marc Van Cauteren, Matthias J P van Osch

Magn Reson Med· May 2018

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A comparison of arterial spin labeling and dynamic susceptibility perfusion imaging for resection control in glioblastoma surgery.
Thomas Lindner, Hajrullah Ahmeti, Julia Juhasz, Michael Helle, Olav Jansen

Oncotarget· April 2018

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Intraoperative resection control using arterial spin labeling - Proof of concept, reproducibility of data and initial results.
Thomas Lindner, Hajrullah Ahmeti, Isabel Lübbing, Michael Helle, Olav Jansen

Neuroimage Clin· March 2018

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Self-controlled super-selective arterial spin labelling.
Thomas Lindner, Friederike Austein, Olav Jansen, Michael Helle

Eur Radiol· March 2018

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Increased variability of watershed areas in patients with high-grade carotid stenosis.
Stephan Kaczmarz, Vanessa Griese, Christine Preibisch, Michael Kallmayer, Michael Helle

Neuroradiology· March 2018

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