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Stephan Kannengiesser
Siemens
RadiologyMagnetic resonance imagingComputer visionNuclear magnetic resonanceMedicine
113Publications
18H-index
1,415Citations
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Publications 72
Newest
#1Xiaodong Zhong (Siemens)H-Index: 19
#2Houchun H. Hu (Nationwide Children's Hospital)H-Index: 3
Last. Vibhas S. Deshpande (Siemens)H-Index: 21
view all 12 authors...
BACKGROUND Stack-of-radial multiecho gradient-echo MRI is promising for free-breathing liver R2* quantification and may benefit children. PURPOSE To validate stack-of-radial MRI with self-gating motion compensation in phantoms, and to evaluate it in children. STUDY TYPE Prospective. PHANTOMS Four vials with different R2* driven by a motion stage. SUBJECTS Sixteen pediatric patients with suspected nonalcoholic fatty liver disease or steatohepatitis (five females, 13 ± 4 years, body mass index 29....
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Objectives The introduction of the 2016 WHO classification of CNS tumors has made the combined molecular and histopathological characterization of tumors a pivotal part of glioma patient management. Recent publications on radiogenomics-based prediction of the mutational status have demonstrated the predictive potential of imaging-based, non-invasive tissue characterization algorithms. Hence, the aim of this study was to assess the potential of multiparametric 18F-FET PET-MRI including MR fingerp...
2 CitationsSource
#1Xiaodong Zhong (Siemens)H-Index: 19
#2Tess Armstrong (UCLA: University of California, Los Angeles)H-Index: 4
Last. Holden H. Wu (UCLA: University of California, Los Angeles)H-Index: 10
view all 9 authors...
PURPOSE: To develop an accurate free-breathing 3D liver R 2 * mapping approach and to evaluate it in vivo. METHODS: A free-breathing multi-echo stack-of-radial sequence was applied in 5 normal subjects and 6 patients at 3 Tesla. Respiratory motion compensation was implemented using the inherent self-gating signal. A breath-hold Cartesian acquisition was the reference standard. Proton density fat fraction and R 2 * were measured and compared between radial and Cartesian methods using Bland-Altman...
2 CitationsSource
#1Benjamin HenningerH-Index: 12
#2M. PlaiknerH-Index: 8
Last. Christian KremserH-Index: 22
view all 6 authors...
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#1Sang Lim Choi (CAU: Chung-Ang University)H-Index: 1
#2Eun Sun Lee (CAU: Chung-Ang University)H-Index: 13
Last. Stephan Kannengiesser (Siemens)H-Index: 18
view all 8 authors...
Objectives To determine the technical success rates of MR elastography (MRE) according to established gradient-recalled echo (GRE) and spin-echo echo-planar imaging (SE-EPI) sequences and to compare liver stiffness (LS) values between the sequences during expiratory and inspiratory phases in patients with chronic liver disease or liver cirrhosis.
1 CitationsSource
#1Joshua Shur (Women's College Hospital)H-Index: 1
#2Stephan Kannengiesser (Siemens)H-Index: 18
Last. Kartik S. Jhaveri (Women's College Hospital)H-Index: 23
view all 6 authors...
Objectives The aim was to investigate the relationship between pancreatic and hepatic iron and fat to glucose metabolism in patients with iron overload and address conflicting results in literature as regards the relationship between pancreas iron and glucose dysregulation.
1 CitationsSource
PURPOSE: The aim of this study was to compare respiratory-triggered diffusion-weighted imaging with simultaneous-multislice acceleration (SMS-RT-DWI) to a standard free-breathing echoplanar DWI (s-DWI) for 3 T renal imaging with respect to image quality and artifacts. MATERIALS AND METHODS: A total of 40 patients who had undergone renal magnetic resonance imaging were included in this retrospective analysis of a prospectively planned cohort study. All examinations were performed on a 3 T whole-b...
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#1Mounes Aliyari Ghasabeh (JHUSOM: Johns Hopkins University School of Medicine)H-Index: 6
#2Mohammadreza Shaghaghi (JHUSOM: Johns Hopkins University School of Medicine)H-Index: 9
Last. Ihab R. Kamel (Johns Hopkins University)H-Index: 55
view all 9 authors...
Purpose To explore the utility of two different fat quantification methods in the liver and pancreas and to test the accuracy of multi-echo Dixon as a single sequence in detecting early stage of fat deposition.
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ObjectivesThe aim of this study was to retrospectively compare optimized respiratory-triggered diffusion-weighted imaging with simultaneous multislice acceleration (SMS-RT-DWI) of the liver with a standard free-breathing echo-planar DWI (s-DWI) protocol at 3 T with respect to the imaging artifacts i
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#1Mounes Aliyari Ghasabeh (JHUSOM: Johns Hopkins University School of Medicine)H-Index: 6
#2Mohammadreza Shaghaghi (JHUSOM: Johns Hopkins University School of Medicine)H-Index: 9
Last. Ihab R. Kamel (Johns Hopkins University)H-Index: 55
view all 9 authors...
Unfortunately the article was published with a spell error in the co-author names “Ankur Pandy and Pallavi Pandy”. The correct co-author names should be Ankur Pandey and Pallavi Pandey”.
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