101
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Huh K, Sommer W, Robinson K, Wu X, Paster J, Hanekamp I, Dehnadi A, Kawai T, Smith R, Colvin R, Benichou G, Madsen J. Two Months Delayed Induction of Mixed Chimerism After Heart and Kidney Cotransplantation in Nonhuman Primates. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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102
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Schöppe F, Sommer W, Dreyling M, Verbeek M, Westphalen C, Bogner C, Nörenberg D, Reiser M, Rummeny E, Fingerle A. Mehrwert der strukturierten Befundung bei CT-Untersuchungen im Rahmen des Primärstagings bei Patienten mit diffus großzelligem B-Zell-Lymphom. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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103
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Kunz W, Fabritius M, Höhne C, Havla L, Reiser M, Sommer W, Thierfelder K. Die Detektion CTA-okkulter Gefäßverschlüsse mittels Post-Processing der CT Perfusion begünstigt den Therapieerfolg der intravenösen Thrombolyse im akuten ischämischen Schlaganfall. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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104
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Fabritius M, Schuler F, Höhne C, Reiser M, Ertl-Wagner B, Sommer W, Thierfelder K, Kunz W. Prädiktiver Wert der CT-Perfusionsbildgebung bei akuter Kleinhirnischämie für die Entstehung eines malignen Kleinhirnödems. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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105
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Hesse N, Dinkel J, Kneidinger N, Plum J, Sommer W, Reiser M, Ceelen F. Strukturierte HRCT-Befundung von lungentransplantierten Patienten. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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106
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Schöppe F, Sommer W, Haack M, Havel M, Rheinwald M, Wechtenbruch J, Fischer M, Reiser M, Sommer N. Strukturierte Befunde von Videofluoroskopien des Schluckaktes: Verbesserung der Befundqualität und wertvoller Beitrag zur klinischen Entscheidungsfindung. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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107
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Kunz W, Hunink M, Beyer S, Meinel F, Reiser M, Sommer W, Thierfelder K. Evaluation der Kosten-Effektivität der endovaskulären Schlaganfalltherapie basierend auf einer Meta-Analyse der randomisierten klinischen Studien ESCAPE, EXTEND-IA, MR CLEAN, REVASCAT und SWIFT PRIME. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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108
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Winter K, Winter K, Hofmann F, Thierfelder K, Heinemann V, Hesse N, Baumann A, Reiser M, Sommer W, D'Anastasi M. Empirische Bestimmung volumetrischer Grenzwerte gemäß RECIST 1.1 zur Beurteilung des Therapieansprechens bei Lebermetastasen. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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109
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Kunz W, Sommer W, Fabritius M, Schuler F, Huber T, Höhne C, Reiser M, Thierfelder K. Crossed cerebellar diaschisis im akuten ischämischen Schlaganfall: Einfluss auf morphologisches Outcome, klinisches Outcome und assoziierte subakute Komplikationen. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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110
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Kunz W, Schuler F, Fabritius M, Havla L, Reiser M, Sommer W, Thierfelder K. Wavelet-basierte angiografische Rekonstruktion der Whole-Brain-CT-Perfusion für die Beurteilung der Cerebralen Venen- und Sinusthrombose. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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111
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Pauksch L, Sommer W, Jansson K, Siemeni T, Falk C, Haverich A, Warnecke G. Regulation of Transplant Arteriosclerosis by In Vitro Expanded Human Regulatory T Cells. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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112
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Kühn C, Sommer W, Puntigam J, Schmitto J, Tudorache I, Warnecke G, Molitoris U, Haverich A. Temporary Right Heart Support Following LVAD Implantation: A Transcutaneous Technique. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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113
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Jansson K, Hahn J, Sommer W, Avsar M, Salman J, Siemeni T, Knoefel AK, Pauksch L, Haverich A, Warnecke G. Delayed Non-Myeloablative Irradiation to Induce Allograft Acceptance in a Large Animal Lung Transplantation Model. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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114
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Knöfel A, Siemeni T, Madrahimov N, Sommer W, Avsar M, Ius F, Jansson K, Pauksch L, Salman J, Tudorache I, Kühn C, Haverich A, Falk C, Warnecke G. Cytokine Expression in Humanized Mice Reflects Development of Primary Graft Dysfunction in Lung Transplant Recipients. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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115
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Siemeni T, Knöfel A, Ius F, Salman J, Sommer W, Avsar M, Jansson K, Kühn C, Tudorache I, Falk S, Haverich A, Warnecke G. In Vivo Development of Transplant Arteriosclerosis in Humanized Mice Reflects BOS in Lung Transplant Recipients and Is Controlled by Autologous Regulatory T Cells. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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116
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Ius F, Sommer W, Verboom M, Erdfelder C, Kühn C, Avsar M, Siemeni T, Salman J, Bobylev D, Hallensleben M, Greer M, Gottlieb J, Schwerk N, Müller C, Haverich A, Tudorache I, Warnecke G. Three Years of Experience with an IgM-Enriched Human Intravenous Immunoglobulin-Based Treatment for Patients with Early Donor-Specific Anti-HLA Antibodies after Lung Transplantation. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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117
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Kühn C, Tongers J, Sommer W, Ius F, Kaufeld T, Bauersachs J, Haverich A, Schäfer A. Biventricular Mechanical Support Combining Impella Microaxial Pump and Veno-arterial ECLS Rescues High-Risk Patients in Refractory Cardiogenic Shock. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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118
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119
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Siemeni T, Knöfel AK, Madrahimov N, Sommer W, Avsar M, Salman J, Ius F, Frank N, Büchler G, Jonigk D, Jansson K, Maus U, Tudorache I, Falk CS, Haverich A, Warnecke G. In Vivo Development of Transplant Arteriosclerosis in Humanized Mice Reflects Alloantigen Recognition and Peripheral Treg Phenotype of Lung Transplant Recipients. Am J Transplant 2016; 16:3150-3162. [PMID: 27273729 DOI: 10.1111/ajt.13905] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 05/24/2016] [Accepted: 05/27/2016] [Indexed: 01/25/2023]
Abstract
Experimentally, regulatory T cells inhibit rejection. In clinical transplantations, however, it is not known whether T cell regulation is the cause for, or an epiphenomenon of, long-term allograft survival. Here, we study naïve and alloantigen-primed T cell responses of clinical lung transplant recipients in humanized mice. The pericardiophrenic artery procured from human lung grafts was implanted into the aorta of NODrag-/- /IL-2rγc-/- mice reconstituted with peripheral blood mononuclear cells (PBMCs) from the respective lung recipient. Naïve or primed allogeneic PBMCs procured 21 days post-lung transplantation with or without enriching for CD4+ CD25high T cells were used. Transplant arteriosclerosis was assessed 28 days later by histology. Mice reconstituted with alloantigen-primed PBMCs showed significantly more severe transplant arteriosclerosis than did mice with naïve PBMCs (p = 0.005). Transplant arteriosclerosis was equally suppressed by enriching for autologous naïve (p = 0.012) or alloantigen-primed regulatory T cells (Tregs) (p = 0.009). Alloantigen priming in clinical lung recipients can be adoptively transferred into a humanized mouse model. Transplant arteriosclerosis elicited by naïve or alloantigen-primed PBMCs can be similarly controlled by potent autologous Tregs. Cellular therapy with expanded autologous Tregs in lung transplantation might be a promising future strategy.
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Mante A, Hildebrandt A, Rostami H, Zhou C, Sommer W. Individual differences in the variability of oscillatory pre-stimulus activity and their relationship with face-cognition performance. PERSONALITY AND INDIVIDUAL DIFFERENCES 2016. [DOI: 10.1016/j.paid.2016.05.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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121
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Hellbach K, Sterzik A, Sommer W, Karpitschka M, Hummel N, Casuscelli J, Ingrisch M, Schlemmer M, Graser A, Staehler M. Dual energy CT allows for improved characterization of response to antiangiogenic treatment in patients with metastatic renal cell cancer. Eur Radiol 2016; 27:2532-2537. [PMID: 27678131 DOI: 10.1007/s00330-016-4597-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 08/31/2016] [Accepted: 09/05/2016] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To evaluate the potential role of dual energy CT (DECT) to visualize antiangiogenic treatment effects in patients with metastatic renal cell cancer (mRCC) while treated with tyrosine-kinase inhibitors (TKI). METHODS 26 patients with mRCC underwent baseline and follow-up single-phase abdominal contrast enhanced DECT scans. Scans were performed immediately before and 10 weeks after start of treatment with TKI. Virtual non-enhanced (VNE) and colour coded iodine images were generated. 44 metastases were measured at the two time points. Hounsfield unit (HU) values for VNE and iodine density (ID) as well as iodine content (IC) in mg/ml of tissue were derived. These values were compared to the venous phase DECT density (CTD) of the lesions. Values before and after treatment were compared using a paired Student's t test. RESULTS Between baseline and follow up, mean CTD and DECT-derived ID both showed a significant reduction (p < 0.005). The relative reduction measured in percent was significantly greater for ID than for CTD (49.8 ± 36,3 % vs. 29.5 ± 20.8 %, p < 0.005). IC was also significantly reduced under antiangiogenic treatment (p < 0.0001). CONCLUSIONS Dual energy CT-based quantification of iodine content of mRCC metastases allows for significantly more sensitive and reproducible detection of antiangiogenic treatment effects. KEY POINTS • A sign of tumour response to antiangiogenic treatment is reduced tumour perfusion. • DECT allows visualizing iodine uptake, which serves as a marker for vascularization. • More sensitive detection of antiangiogenic treatment effects in mRCC is possible.
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Iversen HK, Strange P, Sommer W, Tjalva E. Brain Tumour Headache Related To Tumour Size, Histology And Location. Cephalalgia 2016. [DOI: 10.1177/03331024870070s6172] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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123
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Haverich A, Sommer W. Lungentransplantation. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2016. [DOI: 10.1007/s00398-016-0074-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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124
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Berndt B, Tessonnier T, Schwarz F, Bauer J, Wuerl M, Kamp F, Thieke C, Belka C, Verhaegen F, Reiser M, Sommer W, Dedes G, Landry G, Parodi K. TH-CD-202-05: DECT Based Tissue Segmentation as Input to Monte Carlo Simulations for Proton Treatment Verification Using PET Imaging. Med Phys 2016. [DOI: 10.1118/1.4958160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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125
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Hudobivnik N, Schwarz F, Johnson T, Dedes G, Tessonnier T, Verhaegen F, Thieke C, Belka C, Sommer W, Parodi K, Landry G. MO-FG-CAMPUS-JeP1-04: Evaluating DECT Vs SECT Range Differences in Proton Therapy Using Clinical Data. Med Phys 2016. [DOI: 10.1118/1.4957341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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