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Derlin K, Hellms S, Gutberlet M, Peperhove M, Jang MS, Greite R, Hartung D, Derlin T, Fegbeutel C, Tudorache I, Jüttner B, Wiese B, Lichtinghagen R, Haller H, Haverich A, Wacker F, Warnecke G, Gueler F. Application of MR diffusion imaging for non-invasive assessment of acute kidney injury after lung transplantation. Medicine (Baltimore) 2020; 99:e22445. [PMID: 33285670 PMCID: PMC7717793 DOI: 10.1097/md.0000000000022445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/06/2020] [Accepted: 08/16/2020] [Indexed: 01/07/2023] Open
Abstract
To assess whether MR diffusion imaging may be applied for non-invasive detection of renal changes correlating with clinical diagnosis of acute kidney injury (AKI) in patients after lung transplantation (lutx).Fifty-four patients (mean age 49.6, range 26-64 years) after lutx were enrolled in a prospective clinical study and underwent functional MR imaging of the kidneys in the early postoperative period. Baseline s-creatinine ranged from 39 to 112 μmol/L. For comparison, 14 healthy volunteers (mean age 42.1, range 24-59 years) underwent magnetic resonance imaging (MRI) using the same protocol. Renal tissue injury was evaluated using quantification of diffusion and diffusion anisotropy with diffusion-weighted (DWI) and diffusion-tensor imaging (DTI). Renal function was monitored and AKI was defined according to Acute-Kidney-Injury-Network criteria. Statistical analysis comprised one-way ANOVA and Pearson correlation.67% of lutx patients (36/54) developed AKI, 47% (17/36) had AKI stage 1, 42% (15/36) AKI stage 2, and 8% (3/36) severe AKI stage 3. Renal apparent diffusion coefficients (ADCs) were reduced in patients with AKI, but preserved in transplant patients without AKI and healthy volunteers (2.07 ± 0.02 vs 2.18 ± 0.05 vs 2.21 ± 0.03 × 10 mm/s, P < .05). Diffusion anisotropy was reduced in all lutx recipients compared with healthy volunteers (AKI: 0.27 ± 0.01 vs no AKI: 0.28 ± 0.01 vs healthy: 0.33 ± 0.02; P < .01). Reduction of renal ADC correlated significantly with acute loss of renal function after lutx (decrease of renal function in the postoperative period and glomerular filtration rate on the day of MRI).MR diffusion imaging enables non-invasive assessment of renal changes correlating with AKI early after lutx. Reduction of diffusion anisotropy was present in all patients after lutx, whereas marked reduction of renal ADC was observed only in the group of lutx recipients with AKI and correlated with renal function impairment.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Ralf Lichtinghagen
- Department of Clinical Chemistry, Hannover Medical School, Hannover, Germany
| | | | - Axel Haverich
- Department of Cardiothoracic, Transplantation and Vascular Surgery
| | | | - Gregor Warnecke
- Department of Cardiothoracic, Transplantation and Vascular Surgery
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Kaireit TF, Huisinga C, Peperhove M, Wacker F, Ringe KI. Evaluation of neutral oral contrast agents for assessment of the small bowel at abdominal staging CT. PLoS One 2019; 14:e0225160. [PMID: 31725763 PMCID: PMC6855633 DOI: 10.1371/journal.pone.0225160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 10/30/2019] [Indexed: 12/04/2022] Open
Abstract
Background Although neutral oral contrast agents are widely in use, a consensus regarding a standardized protocol in abdominal staging CT does not exist. Purpose To test the null hypothesis that there is no quantitative or qualitative difference between water and mannitol for evaluation of the small bowel at abdominal staging CT. Material and methods 180 patients prospectively underwent abdominal staging CT with oral administration of either 1 liter mannitol solution (n = 88) or water (n = 92). Intestinal distension was measured in 6 different segments of the small intestine. In addition, two radiologists separately evaluated diagnostic image quality with regards to luminal distension (three-point scale) in each segment and the possibility to rule out a possible underlying pathology. Quantitative and qualitative results were compared (Mann-Whitney test). Results Quantitatively, intestinal distension was comparable in all segments (p>0.05), except for the horizontal duodenum (p = 0.019). The mean luminal diameter over all intestinal segments was 19.0 mm (18.1–19.9 mm) for the water group and 18.4 mm (17.5–19.2 mm) for the mannitol group, respectively. Qualitatively, ratings were comparable for the first three segments, while distal segments were rated better using mannitol. Side effects were only observed using mannitol (n = 26; 29.5%). Conclusions Orally administered water and mannitol solution for evaluation of the small bowel at abdominal staging CT in clinical routine resulted in comparable results for the quantitative, but not for the qualitative analysis. Looking more differentiated at the overall performance, water has advantages in terms of patient comfort, side effects and costs, and can therefore be regarded as noninferior to mannitol in this specific patient group.
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Affiliation(s)
- Till F. Kaireit
- Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
- * E-mail:
| | - Carolin Huisinga
- Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Matti Peperhove
- Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Frank Wacker
- Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Kristina I. Ringe
- Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
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Peperhove M, Vo Chieu VD, Jang MS, Gutberlet M, Hartung D, Tewes S, Warnecke G, Fegbeutel C, Haverich A, Gwinner W, Lehner F, Bräsen JH, Haller H, Wacker F, Gueler F, Hueper K. Assessment of acute kidney injury with T1 mapping MRI following solid organ transplantation. Eur Radiol 2017; 28:44-50. [PMID: 28710580 DOI: 10.1007/s00330-017-4943-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 04/08/2017] [Accepted: 06/09/2017] [Indexed: 12/29/2022]
Abstract
OBJECTIVES To evaluate T1 mapping as a non-invasive, functional MRI biomarker in patients shortly after solid organ transplantation to detect acute postsurgical kidney damage and to correlate T1 times with renal function. METHODS 101 patients within 2 weeks after solid organ transplantation (49 kidney transplantation, 52 lung transplantation) and 14 healthy volunteers were examined by MRI between July 2012 and April 2015 using the modified Look-Locker inversion recovery (MOLLI) sequence. T1 times in renal cortex and medulla and the corticomedullary difference were compared between groups using one-way ANOVA adjusted for multiple comparison with the Tukey test, and T1 times were correlated with renal function using Pearson's correlation. RESULTS Compared to healthy volunteers T1 times were significantly increased after solid organ transplantation in the renal cortex (healthy volunteers 987 ± 102 ms; kidney transplantation 1299 ± 101 ms, p < 0.001; lung transplantation 1058 ± 96 ms, p < 0.05) and to a lesser extent in the renal medulla. Accordingly, the corticomedullary difference was diminished shortly after solid organ transplantation. T1 changes were more pronounced following kidney compared to lung transplantation, were associated with the stage of renal impairment and significantly correlated with renal function. CONCLUSIONS T1 mapping may be helpful for early non-invasive assessment of acute kidney injury and renal pathology following major surgery such as solid organ transplantation. KEY POINTS • Renal cortical T1 relaxation times are prolonged after solid organ transplantation. • Cortical T1 values increase with higher stages of renal function impairment. • Corticomedullary difference decreases with higher stages of renal function impairment. • Renal cortical T1 relaxation time and corticomedullary difference correlate with renal function. • T1 mapping may be helpful for non-invasive assessment of post-operative renal pathology.
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Affiliation(s)
- Matti Peperhove
- Diagnostic and Interventional Radiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Van Dai Vo Chieu
- Diagnostic and Interventional Radiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Mi-Sun Jang
- Nephrology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Marcel Gutberlet
- Diagnostic and Interventional Radiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Dagmar Hartung
- Diagnostic and Interventional Radiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Susanne Tewes
- Diagnostic and Interventional Radiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Gregor Warnecke
- Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Christiane Fegbeutel
- Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Axel Haverich
- Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Wilfried Gwinner
- Nephrology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Frank Lehner
- General, Abdominal and Transplant Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Jan Hinrich Bräsen
- Pathology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Hermann Haller
- Nephrology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Frank Wacker
- Diagnostic and Interventional Radiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Faikah Gueler
- Nephrology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Katja Hueper
- Diagnostic and Interventional Radiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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Vo Chieu V, Jan Hinrich B, Gutberlet M, Jang M, Lehner F, Peperhove M, Tewes S, Warnecke G, Fegbeutel C, Gwinner W, Hartung D, Wacker F, Güler F, Hüper K. T1-Mapping zur Beurteilung von Nierenschäden nach Organtransplantation. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kaireit T, Lutat C, Peperhove M, Wacker F, Ringe K. Wertigkeit der oralen Negativkontrastmittelgabe im Rahmen der CT-Staging-Untersuchungen bei Patienten mit Neoplasien. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hueper K, Khalifa AA, Bräsen JH, Vo Chieu VD, Gutberlet M, Wintterle S, Lehner F, Richter N, Peperhove M, Tewes S, Weber K, Haller H, Wacker F, Gwinner W, Gueler F, Hartung D. Diffusion-Weighted imaging and diffusion tensor imaging detect delayed graft function and correlate with allograft fibrosis in patients early after kidney transplantation. J Magn Reson Imaging 2016; 44:112-21. [PMID: 26778459 DOI: 10.1002/jmri.25158] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 12/29/2015] [Indexed: 12/22/2022] Open
Abstract
PURPOSE To combine diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI) for detection of allograft dysfunction in patients early after kidney transplantation and to correlate diffusion parameters with renal function and renal histology of allograft biopsies. MATERIALS AND METHODS Between day 4 and 11 after kidney transplantation 33 patients with initial graft function and 31 patients with delayed graft function (DGF) were examined with a 1.5T magnetic resonance imaging (MRI) scanner. DTI and DWI sequences were acquired and fractional anisotropy (FA), apparent diffusion coefficient (ADCmono), pure diffusion (ADCdiff ), and the perfusion fraction (Fp) were calculated. Kidney biopsies in 26 patients were analyzed for allograft pathology, ie, acute tubular injury, inflammation, edema, renal fibrosis, and rejection. Histological results were correlated with MRI parameters. RESULTS In the renal medulla FA (0.25 ± 0.06 vs. 0.29 ± 0.06, P < 0.01) and ADCmono (1.73 ± 0.13*10(-3) vs. 1.93 ± 0.16*10(-3) mm(2) /s, P < 0.001) were significantly reduced in DGF patients compared with patients with initial function. For ADCdiff and Fp similar reductions were observed. FA and ADCmono significantly correlated with renal function (r = 0.53 and r = 0.57, P < 0.001) and were inversely correlated with the amount of renal fibrosis (r = -0.63 and r = -0.65, P < 0.05). CONCLUSION Combined DTI and DWI detected allograft dysfunction early after kidney transplantation and correlated with allograft fibrosis. J. Magn. Reson. Imaging 2016;44:112-121.
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Affiliation(s)
- Katja Hueper
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | | | - Jan H Bräsen
- Institute for Pathology, Hannover Medical School, Hannover, Germany
| | - Van Dai Vo Chieu
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Marcel Gutberlet
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Sabine Wintterle
- Clinic for Nephrology, Hannover Medical School, Hannover, Germany
| | - Frank Lehner
- Clinic for General, Abdominal and Transplant Surgery, Hannover Medical School, Hannover, Germany
| | - Nicolas Richter
- Clinic for General, Abdominal and Transplant Surgery, Hannover Medical School, Hannover, Germany
| | - Matti Peperhove
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Susanne Tewes
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Kristina Weber
- Institute for Biostatistics, Hannover Medical School, Hannover, Germany
| | - Hermann Haller
- Clinic for Nephrology, Hannover Medical School, Hannover, Germany
| | - Frank Wacker
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Wilfried Gwinner
- Clinic for Nephrology, Hannover Medical School, Hannover, Germany
| | - Faikah Gueler
- Clinic for Nephrology, Hannover Medical School, Hannover, Germany
| | - Dagmar Hartung
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
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Hueper K, Gueler F, Bräsen JH, Gutberlet M, Jang MS, Lehner F, Richter N, Hanke N, Peperhove M, Martirosian P, Tewes S, Vo Chieu VD, Großhennig A, Haller H, Wacker F, Gwinner W, Hartung D. Functional MRI detects perfusion impairment in renal allografts with delayed graft function. Am J Physiol Renal Physiol 2015; 308:F1444-51. [DOI: 10.1152/ajprenal.00064.2015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 04/28/2015] [Indexed: 11/22/2022] Open
Abstract
Delayed graft function (DGF) after kidney transplantation is not uncommon, and it is associated with long-term allograft impairment. Our aim was to compare renal perfusion changes measured with noninvasive functional MRI in patients early after kidney transplantation to renal function and allograft histology in biopsy samples. Forty-six patients underwent MRI 4–11 days after transplantation. Contrast-free MRI renal perfusion images were acquired using an arterial spin labeling technique. Renal function was assessed by estimated glomerular filtration rate (eGFR), and renal biopsies were performed when indicated within 5 days of MRI. Twenty-six of 46 patients had DGF. Of these, nine patients had acute rejection (including borderline), and eight had other changes (e.g., tubular injury or glomerulosclerosis). Renal perfusion was significantly lower in the DGF group compared with the group with good allograft function (231 ± 15 vs. 331 ± 15 ml·min−1·100 g−1, P < 0.001). Living donor allografts exhibited significantly higher perfusion values compared with deceased donor allografts ( P < 0.001). Renal perfusion significantly correlated with eGFR ( r = 0.64, P < 0.001), resistance index ( r = −0.57, P < 0.001), and cold ischemia time ( r = −0.48, P < 0.01). Furthermore, renal perfusion impairment early after transplantation predicted inferior renal outcome and graft loss. In conclusion, noninvasive functional MRI detects renal perfusion impairment early after kidney transplantation in patients with DGF.
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Affiliation(s)
- Katja Hueper
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Faikah Gueler
- Department of Nephrology, Hannover Medical School, Hannover, Germany
| | | | - Marcel Gutberlet
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Mi-Sun Jang
- Department of Nephrology, Hannover Medical School, Hannover, Germany
| | - Frank Lehner
- Department of General, Abdominal and Transplant Surgery, Hannover Medical School, Hannover, Germany
| | - Nicolas Richter
- Department of General, Abdominal and Transplant Surgery, Hannover Medical School, Hannover, Germany
| | - Nils Hanke
- Department of Nephrology, Hannover Medical School, Hannover, Germany
| | - Matti Peperhove
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Petros Martirosian
- Section on Experimental Radiology, University of Tübingen, Tübingen, Germany; and
| | - Susanne Tewes
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Van Dai Vo Chieu
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Anika Großhennig
- Institute for Biostatistics, Hannover Medical School, Hannover, Germany
| | - Hermann Haller
- Department of Nephrology, Hannover Medical School, Hannover, Germany
| | - Frank Wacker
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Wilfried Gwinner
- Department of Nephrology, Hannover Medical School, Hannover, Germany
| | - Dagmar Hartung
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
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Hueper K, Gueler F, Bräsen JH, Gutberlet M, Jang MS, Lehner F, Richter N, Hanke N, Peperhove M, Martirosian P, Tewes S, Grosshennig A, Haller H, Wacker F, Gwinner W, Hartung D. SP777EARLY RENAL PERFUSION IMPAIRMENT QUANTIFIED FUNCTIONAL MRI IS PREDICTIVE FOR DELAYED RENAL GRAFT FUNCTION AND RENAL OUTCOME ONE YEAR AFTER KIDNEY TRANSPLANTATION. Nephrol Dial Transplant 2015. [DOI: 10.1093/ndt/gfv202.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Peperhove M, Tewes S, Jang M, Hartung D, Gutberlet M, Reising A, Lichtinghagen R, Jüttner B, Warnecke G, Fegbeutel C, Haller H, Wacker F, Güler F, Hueper K. Arterial Spin Labeling und T1-Mapping zur Beurteilung von renalen Pathologien im Rahmen des akuten Nierenversagens nach Lungentransplantation. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1551434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tewes S, Hartung D, Peperhove M, Mi-Sun J, Lichtinghagen R, Jüttner B, Gregor W, Fegbeutel C, Haller H, Wacker F, Güler F, Hüper K. Die MRT-Diffusionsbildgebung ermöglicht den Nachweis von renalen Pathologien im Rahmen des akuten Nierenversagens nach Lungentransplantation. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1551436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hueper K, Peperhove M, Rong S, Gerstenberg J, Mengel M, Meier M, Gutberlet M, Tewes S, Barrmeyer A, Chen R, Haller H, Wacker F, Hartung D, Gueler F. T1-mapping for assessment of ischemia-induced acute kidney injury and prediction of chronic kidney disease in mice. Eur Radiol 2014; 24:2252-60. [DOI: 10.1007/s00330-014-3250-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 04/02/2014] [Accepted: 05/15/2014] [Indexed: 12/27/2022]
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Tewes S, Gutberlet M, Hartung D, Peperhove M, Barrmeyer A, Chen R, Rong S, Meier M, Wacker F, Güler F, Hüper K. Arterial Spin Labeling und T1-Mapping zur Beurteilung pathologischer Veränderungen der Niere nach akutem Nierenversagen: Vergleich zweier Mausstämme. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Peperhove M, Gutberlet M, Hartung D, Meier M, Rong S, Mengel M, Tewes S, Barrmeyer A, Wacker F, Gueler F, Hueper K. T1-Mapping zur Beurteilung renaler Pathologien nach Ischämie induziertem akutem Nierenversagen im Mausmodell – Korrelation mit der Histologie. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hartung D, Gutberlet M, Lehner F, Richter N, Hanke N, Becker J, Peperhove M, Zapf A, Haller H, Wacker F, Gwinner W, Hüper K. Diffusionstensorbildgebung und Arterial Spin Labeling zur Beurteilung der Delayed Allograft Function der Niere. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sorrentino S, Peperhove M, Kaireit T, Rühaak J, Strehlow J, Wacker F, Vogel-Claussen J, Shin H. Entwicklung eines virtuellen 2D-Herz-Phantoms für die Berechnung regionaler myokardialer Wandbewegung mittels nicht-rigider Bildregistrierung. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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