The Experts below are selected from a list of 258 Experts worldwide ranked by ideXlab platform
Thomas E. Mayer - One of the best experts on this subject based on the ideXlab platform.
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Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade)
Neuroradiology, 2011Co-Authors: Andreas Ragoschke-schumm, Peter Schmidt, Julia Schumm, Georg Reimann, Hans-joachim Mentzel, Werner A. Kaiser, Thomas E. MayerAbstract:Introduction The cervical spine is prone to artefacts in T2 MR-imaging due to patient movements and cerebrospinal fluid flow. The periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade) acquisition method was developed to reduce motion artefacts. We sought to determine if T2-Blade is superior to T2-TSE with conventional k-space reading. Methods Twenty-five patients were examined using a 1.5 T MR-scanner. T2-weighted imaging of the cervical spine in sagittal and axial orientation using conventional or Blade k-space reading was performed. Spinal cord, subarachnoid space, vertebrae and discs were evaluated by two independent observers using a scale from 0 (non-diagnostic) to 3 (excellent). Interobserver correlation was assessed as Cohen's kappa. Results of Mann–Whitney U test with p
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Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade)
Neuroradiology, 2011Co-Authors: Andreas Ragoschke-schumm, Peter Schmidt, Julia Schumm, Georg Reimann, Hans-joachim Mentzel, Werner A. Kaiser, Thomas E. MayerAbstract:Introduction The cervical spine is prone to artefacts in T2 MR-imaging due to patient movements and cerebrospinal fluid flow. The periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade) acquisition method was developed to reduce motion artefacts. We sought to determine if T2-Blade is superior to T2-TSE with conventional k-space reading. Methods Twenty-five patients were examined using a 1.5 T MR-scanner. T2-weighted imaging of the cervical spine in sagittal and axial orientation using conventional or Blade k-space reading was performed. Spinal cord, subarachnoid space, vertebrae and discs were evaluated by two independent observers using a scale from 0 (non-diagnostic) to 3 (excellent). Interobserver correlation was assessed as Cohen's kappa. Results of Mann–Whitney U test with p
Kaori Togashi - One of the best experts on this subject based on the ideXlab platform.
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Propeller (Blade) technique to upper abdominal MR imaging
2010Co-Authors: Hiroyoshi Isoda, Yuusuke Hirokawa, Shigeki Arizono, Kotaro Shimada, Kaori TogashiAbstract:Poster: "ECR 2010 / C-2928 / Propeller (Blade) technique to upper abdominal MR imaging " by: " H. Isoda , Y. Hirokawa, S. Arizono, K. Shimada, K. Togashi; Kyoto/JP"
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evaluation of motion correction effect and image quality with the periodically rotated overlapping parallel lines with enhanced reconstruction Propeller Blade and parallel imaging acquisition technique in the upper abdomen
Journal of Magnetic Resonance Imaging, 2008Co-Authors: Yuusuke Hirokawa, Hiroyoshi Isoda, Shigeki Arizono, Kotaro Shimada, Yoji Maetani, Kaori TogashiAbstract:Purpose To evaluate motion correction effect and image quality in the upper abdomen with the periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller) (Blade) and parallel imaging acquisition technique. Materials and Methods A total of 50 consecutive patients underwent abdominal MR imaging. Fat-saturated T2-weighted turbo spin-echo sequences were obtained by respiratory triggering. The subjects were examined with three different conditions of echo train length (ETL), Blade width, and percent k-space coverage in the same scanning time: 19/30/100%, 30/30/100%, and 30/52/175%, which were designated as L/C(1), L/C(2), and L/C(3), respectively. The parallel imaging acquisition technique was used to either reduce ETL from 30 to 19 in L/C(1) or increase k-space coverage from 100% to 175% in L/C(3) compared with L/C(2). Motion and streak artifacts, and overall image quality were evaluated visually by two radiologists, independently. Results Motion and streak artifacts were mostly reduced in L/C(3) condition. The L/C(3) image also gave the best overall image quality compared with other conditions (P < 0.001). The inter-rater reliability for each evaluation agreed well. Conclusion In upper abdominal Blade MRI, it was possible to reduce image artifacts and obtain better image quality by increasing the k-space coverage with parallel imaging in the same scanning time. J. Magn. Reson. Imaging 2008;28:957–962. © 2008 Wiley-Liss, Inc.
Andreas Ragoschke-schumm - One of the best experts on this subject based on the ideXlab platform.
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Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade)
Neuroradiology, 2011Co-Authors: Andreas Ragoschke-schumm, Peter Schmidt, Julia Schumm, Georg Reimann, Hans-joachim Mentzel, Werner A. Kaiser, Thomas E. MayerAbstract:Introduction The cervical spine is prone to artefacts in T2 MR-imaging due to patient movements and cerebrospinal fluid flow. The periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade) acquisition method was developed to reduce motion artefacts. We sought to determine if T2-Blade is superior to T2-TSE with conventional k-space reading. Methods Twenty-five patients were examined using a 1.5 T MR-scanner. T2-weighted imaging of the cervical spine in sagittal and axial orientation using conventional or Blade k-space reading was performed. Spinal cord, subarachnoid space, vertebrae and discs were evaluated by two independent observers using a scale from 0 (non-diagnostic) to 3 (excellent). Interobserver correlation was assessed as Cohen's kappa. Results of Mann–Whitney U test with p
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Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade)
Neuroradiology, 2011Co-Authors: Andreas Ragoschke-schumm, Peter Schmidt, Julia Schumm, Georg Reimann, Hans-joachim Mentzel, Werner A. Kaiser, Thomas E. MayerAbstract:Introduction The cervical spine is prone to artefacts in T2 MR-imaging due to patient movements and cerebrospinal fluid flow. The periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade) acquisition method was developed to reduce motion artefacts. We sought to determine if T2-Blade is superior to T2-TSE with conventional k-space reading. Methods Twenty-five patients were examined using a 1.5 T MR-scanner. T2-weighted imaging of the cervical spine in sagittal and axial orientation using conventional or Blade k-space reading was performed. Spinal cord, subarachnoid space, vertebrae and discs were evaluated by two independent observers using a scale from 0 (non-diagnostic) to 3 (excellent). Interobserver correlation was assessed as Cohen's kappa. Results of Mann–Whitney U test with p
Julia Schumm - One of the best experts on this subject based on the ideXlab platform.
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Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade)
Neuroradiology, 2011Co-Authors: Andreas Ragoschke-schumm, Peter Schmidt, Julia Schumm, Georg Reimann, Hans-joachim Mentzel, Werner A. Kaiser, Thomas E. MayerAbstract:Introduction The cervical spine is prone to artefacts in T2 MR-imaging due to patient movements and cerebrospinal fluid flow. The periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade) acquisition method was developed to reduce motion artefacts. We sought to determine if T2-Blade is superior to T2-TSE with conventional k-space reading. Methods Twenty-five patients were examined using a 1.5 T MR-scanner. T2-weighted imaging of the cervical spine in sagittal and axial orientation using conventional or Blade k-space reading was performed. Spinal cord, subarachnoid space, vertebrae and discs were evaluated by two independent observers using a scale from 0 (non-diagnostic) to 3 (excellent). Interobserver correlation was assessed as Cohen's kappa. Results of Mann–Whitney U test with p
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Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade)
Neuroradiology, 2011Co-Authors: Andreas Ragoschke-schumm, Peter Schmidt, Julia Schumm, Georg Reimann, Hans-joachim Mentzel, Werner A. Kaiser, Thomas E. MayerAbstract:Introduction The cervical spine is prone to artefacts in T2 MR-imaging due to patient movements and cerebrospinal fluid flow. The periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade) acquisition method was developed to reduce motion artefacts. We sought to determine if T2-Blade is superior to T2-TSE with conventional k-space reading. Methods Twenty-five patients were examined using a 1.5 T MR-scanner. T2-weighted imaging of the cervical spine in sagittal and axial orientation using conventional or Blade k-space reading was performed. Spinal cord, subarachnoid space, vertebrae and discs were evaluated by two independent observers using a scale from 0 (non-diagnostic) to 3 (excellent). Interobserver correlation was assessed as Cohen's kappa. Results of Mann–Whitney U test with p
Peter Schmidt - One of the best experts on this subject based on the ideXlab platform.
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Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade)
Neuroradiology, 2011Co-Authors: Andreas Ragoschke-schumm, Peter Schmidt, Julia Schumm, Georg Reimann, Hans-joachim Mentzel, Werner A. Kaiser, Thomas E. MayerAbstract:Introduction The cervical spine is prone to artefacts in T2 MR-imaging due to patient movements and cerebrospinal fluid flow. The periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade) acquisition method was developed to reduce motion artefacts. We sought to determine if T2-Blade is superior to T2-TSE with conventional k-space reading. Methods Twenty-five patients were examined using a 1.5 T MR-scanner. T2-weighted imaging of the cervical spine in sagittal and axial orientation using conventional or Blade k-space reading was performed. Spinal cord, subarachnoid space, vertebrae and discs were evaluated by two independent observers using a scale from 0 (non-diagnostic) to 3 (excellent). Interobserver correlation was assessed as Cohen's kappa. Results of Mann–Whitney U test with p
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Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade)
Neuroradiology, 2011Co-Authors: Andreas Ragoschke-schumm, Peter Schmidt, Julia Schumm, Georg Reimann, Hans-joachim Mentzel, Werner A. Kaiser, Thomas E. MayerAbstract:Introduction The cervical spine is prone to artefacts in T2 MR-imaging due to patient movements and cerebrospinal fluid flow. The periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller/Blade) acquisition method was developed to reduce motion artefacts. We sought to determine if T2-Blade is superior to T2-TSE with conventional k-space reading. Methods Twenty-five patients were examined using a 1.5 T MR-scanner. T2-weighted imaging of the cervical spine in sagittal and axial orientation using conventional or Blade k-space reading was performed. Spinal cord, subarachnoid space, vertebrae and discs were evaluated by two independent observers using a scale from 0 (non-diagnostic) to 3 (excellent). Interobserver correlation was assessed as Cohen's kappa. Results of Mann–Whitney U test with p
