1
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Wilke F, Matthews H, Herrick N, Dopkins N, Claes P, Walsh S. Automated 3D Landmarking of the Skull: A Novel Approach for Craniofacial Analysis. bioRxiv 2024:2024.02.09.579642. [PMID: 38405968 PMCID: PMC10888852 DOI: 10.1101/2024.02.09.579642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Automatic dense 3D surface registration is a powerful technique for comprehensive 3D shape analysis that has found a successful application in human craniofacial morphology research, particularly within the mandibular and cranial vault regions. However, a notable gap exists when exploring the frontal aspect of the human skull, largely due to the intricate and unique nature of its cranial anatomy. To better examine this region, this study introduces a simplified single-surface craniofacial bone mask comprising 9,999 quasi-landmarks, which can aid in the classification and quantification of variation over human facial bone surfaces. Automatic craniofacial bone phenotyping was conducted on a dataset of 31 skull scans obtained through cone-beam computed tomography (CBCT) imaging. The MeshMonk framework facilitated the non-rigid alignment of the constructed craniofacial bone mask with each individual target mesh. To gauge the accuracy and reliability of this automated process, 20 anatomical facial landmarks were manually placed three times by three independent observers on the same set of images. Intra- and inter-observer error assessments were performed using root mean square (RMS) distances, revealing consistently low scores. Subsequently, the corresponding automatic landmarks were computed and juxtaposed with the manually placed landmarks. The average Euclidean distance between these two landmark sets was 1.5mm, while centroid sizes exhibited noteworthy similarity. Intraclass coefficients (ICC) demonstrated a high level of concordance (>0.988), and automatic landmarking showing significantly lower errors and variation. These results underscore the utility of this newly developed single-surface craniofacial bone mask, in conjunction with the MeshMonk framework, as a highly accurate and reliable method for automated phenotyping of the facial region of human skulls from CBCT and CT imagery. This craniofacial template bone mask expansion of the MeshMonk toolbox not only enhances our capacity to study craniofacial bone variation but also holds significant potential for shedding light on the genetic, developmental, and evolutionary underpinnings of the overall human craniofacial structure.
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Affiliation(s)
- Franziska Wilke
- Department of Biology, Indiana University Indianapolis, Indianapolis, USA
| | - Harold Matthews
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
| | - Noah Herrick
- Department of Biology, Indiana University Indianapolis, Indianapolis, USA
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nichole Dopkins
- Department of Biology, Indiana University Indianapolis, Indianapolis, USA
| | - Peter Claes
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
| | - Susan Walsh
- Department of Biology, Indiana University Indianapolis, Indianapolis, USA
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2
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Reichelt P, Bernhart S, Wilke F, Schwind S, Cross M, Platzbecker U, Behre G. MicroRNA Expression Patterns Reveal a Role of the TGF-β Family Signaling in AML Chemo-Resistance. Cancers (Basel) 2023; 15:5086. [PMID: 37894453 PMCID: PMC10605523 DOI: 10.3390/cancers15205086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/13/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Resistance to chemotherapy is ultimately responsible for the majority of AML-related deaths, making the identification of resistance pathways a high priority. Transcriptomics approaches can be used to identify genes regulated at the level of transcription or mRNA stability but miss microRNA-mediated changes in translation, which are known to play a role in chemo-resistance. To address this, we compared miRNA profiles in paired chemo-sensitive and chemo-resistant subclones of HL60 cells and used a bioinformatics approach to predict affected pathways. From a total of 38 KEGG pathways implicated, TGF-β/activin family signaling was selected for further study. Chemo-resistant HL60 cells showed an increased TGF-β response but were not rendered chemo-sensitive by specific inhibitors. Differential pathway expression in primary AML samples was then investigated at the RNA level using publically available gene expression data in the TGCA database and by longitudinal analysis of pre- and post-resistance samples available from a limited number of patients. This confirmed differential expression and activity of the TGF-β family signaling pathway upon relapse and revealed that the expression of TGF-β and activin signaling genes at diagnosis was associated with overall survival. Our focus on a matched pair of cytarabine sensitive and resistant sublines to identify miRNAs that are associated specifically with resistance, coupled with the use of pathway analysis to rank predicted targets, has thus identified the activin/TGF-β signaling cascade as a potential target for overcoming resistance in AML.
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Affiliation(s)
- Paula Reichelt
- Department of Hematology, Cell Therapy, Hemostaseology and Infectiology, University Hospital Leipzig, 04103 Leipzig, Germany (M.C.); (U.P.)
| | - Stephan Bernhart
- Interdisciplinary Center for Bioinformatics, Leipzig University, 04107 Leipzig, Germany;
| | - Franziska Wilke
- Department of Hematology, Cell Therapy, Hemostaseology and Infectiology, University Hospital Leipzig, 04103 Leipzig, Germany (M.C.); (U.P.)
| | - Sebastian Schwind
- Department of Hematology, Cell Therapy, Hemostaseology and Infectiology, University Hospital Leipzig, 04103 Leipzig, Germany (M.C.); (U.P.)
| | - Michael Cross
- Department of Hematology, Cell Therapy, Hemostaseology and Infectiology, University Hospital Leipzig, 04103 Leipzig, Germany (M.C.); (U.P.)
| | - Uwe Platzbecker
- Department of Hematology, Cell Therapy, Hemostaseology and Infectiology, University Hospital Leipzig, 04103 Leipzig, Germany (M.C.); (U.P.)
| | - Gerhard Behre
- Dessau Medical Center, Clinic for Internal Medicine I—Gastroenterology, Hematology, Oncology, Hemostaseology, Palliative Medicine, Nephrology, Infectious Diseases, Pneumology, 06847 Dessau-Rosslau, Germany;
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3
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Wilke F, Herrick N, Matthews H, Hoskens H, Singh S, Shaffer JR, Weinberg SM, Shriver MD, Claes P, Walsh S. Exploring regional aspects of 3D facial variation within European individuals. Sci Rep 2023; 13:3708. [PMID: 36879022 PMCID: PMC9988837 DOI: 10.1038/s41598-023-30855-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Facial ancestry can be described as variation that exists in facial features that are shared amongst members of a population due to environmental and genetic effects. Even within Europe, faces vary among subregions and may lead to confounding in genetic association studies if unaccounted for. Genetic studies use genetic principal components (PCs) to describe facial ancestry to circumvent this issue. Yet the phenotypic effect of these genetic PCs on the face has yet to be described, and phenotype-based alternatives compared. In anthropological studies, consensus faces are utilized as they depict a phenotypic, not genetic, ancestry effect. In this study, we explored the effects of regional differences on facial ancestry in 744 Europeans using genetic and anthropological approaches. Both showed similar ancestry effects between subgroups, localized mainly to the forehead, nose, and chin. Consensus faces explained the variation seen in only the first three genetic PCs, differing more in magnitude than shape change. Here we show only minor differences between the two methods and discuss a combined approach as a possible alternative for facial scan correction that is less cohort dependent, more replicable, non-linear, and can be made open access for use across research groups, enhancing future studies in this field.
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Affiliation(s)
- Franziska Wilke
- Department of Biology, Indiana University-Purdue University Indianapolis, 723 W Michigan St, Indianapolis, IN, 46202, USA
| | - Noah Herrick
- Department of Biology, Indiana University-Purdue University Indianapolis, 723 W Michigan St, Indianapolis, IN, 46202, USA
| | - Harold Matthews
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
| | - Hanne Hoskens
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
| | - Sylvia Singh
- Department of Biology, Indiana University-Purdue University Indianapolis, 723 W Michigan St, Indianapolis, IN, 46202, USA
| | - John R Shaffer
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Oral and Craniofacial Sciences, Center for Craniofacial and Dental Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Seth M Weinberg
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Oral and Craniofacial Sciences, Center for Craniofacial and Dental Genetics, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Anthropology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mark D Shriver
- Department of Anthropology, The Pennsylvania State University, University Park, PA, USA
| | - Peter Claes
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
- Department of Electrical Engineering, ESAT/PSI, KU Leuven, Leuven, Belgium
| | - Susan Walsh
- Department of Biology, Indiana University-Purdue University Indianapolis, 723 W Michigan St, Indianapolis, IN, 46202, USA.
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4
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Naqvi S, Hoskens H, Wilke F, Weinberg SM, Shaffer JR, Walsh S, Shriver MD, Wysocka J, Claes P. Decoding the Human Face: Challenges and Progress in Understanding the Genetics of Craniofacial Morphology. Annu Rev Genomics Hum Genet 2022; 23:383-412. [PMID: 35483406 PMCID: PMC9482780 DOI: 10.1146/annurev-genom-120121-102607] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Variations in the form of the human face, which plays a role in our individual identities and societal interactions, have fascinated scientists and artists alike. Here, we review our current understanding of the genetics underlying variation in craniofacial morphology and disease-associated dysmorphology, synthesizing decades of progress on Mendelian syndromes in addition to more recent results from genome-wide association studies of human facial shape and disease risk. We also discuss the various approaches used to phenotype and quantify facial shape, which are of particular importance due to the complex, multipartite nature of the craniofacial form. We close by discussing how experimental studies have contributed and will further contribute to our understanding of human genetic variation and then proposing future directions and applications for the field.
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Affiliation(s)
- Sahin Naqvi
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California, USA; , .,Department of Genetics, Stanford University School of Medicine, Stanford, California, USA
| | - Hanne Hoskens
- Center for Processing Speech and Images, Department of Electrical Engineering, KU Leuven, Leuven, Belgium; , .,Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
| | - Franziska Wilke
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana, USA; ,
| | - Seth M Weinberg
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; , .,Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Anthropology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - John R Shaffer
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; , .,Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Susan Walsh
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana, USA; ,
| | - Mark D Shriver
- Department of Anthropology, The Pennsylvania State University, University Park, Pennsylvania, USA;
| | - Joanna Wysocka
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, California, USA; , .,Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA.,Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Peter Claes
- Center for Processing Speech and Images, Department of Electrical Engineering, KU Leuven, Leuven, Belgium; , .,Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium.,Department of Human Genetics, KU Leuven, Leuven, Belgium.,Murdoch Children's Research Institute, Melbourne, Victoria, Australia
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5
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Müller-Vahl KR, Szejko N, Wilke F, Jakubovski E, Geworski L, Bengel F, Berding G. Author Correction: Serotonin transporter binding is increased in Tourette syndrome with Obsessive Compulsive Disorder. Sci Rep 2020; 10:11092. [PMID: 32606446 PMCID: PMC7326929 DOI: 10.1038/s41598-020-68278-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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Jentzsch M, Bill M, Grimm J, Schulz J, Schuhmann L, Brauer D, Goldmann K, Wilke F, Franke GN, Behre G, Pönisch W, Vucinic V, Niederwieser D, Platzbecker U, Schwind S. High expression of the stem cell marker <i>GPR56</i> at diagnosis identifies acute myeloid leukemia patients at higher relapse risk after allogeneic stem cell transplantation in context with the CD34+/CD38- population. Haematologica 2020; 105:e507. [PMID: 33054093 PMCID: PMC7556671 DOI: 10.3324/haematol.2019.229260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Madlen Jentzsch
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Marius Bill
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Juliane Grimm
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Julia Schulz
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Luba Schuhmann
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Dominic Brauer
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Karoline Goldmann
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Franziska Wilke
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Georg-Nikolaus Franke
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Gerhard Behre
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Wolfram Pönisch
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Vladan Vucinic
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Dietger Niederwieser
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Uwe Platzbecker
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
| | - Sebastian Schwind
- Medical Clinic and Policlinic 1, Hematology and Cellular Therapy,Leipzig University Hospital,Germany
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7
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Krakowsky RHE, Wurm AA, Gerloff D, Katzerke C, Bräuer-Hartmann D, Hartmann JU, Wilke F, Thiede C, Müller-Tidow C, Niederwieser D, Behre G. miR-451a abrogates treatment resistance in FLT3-ITD-positive acute myeloid leukemia. Blood Cancer J 2018; 8:36. [PMID: 29563490 PMCID: PMC5862828 DOI: 10.1038/s41408-018-0070-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 01/10/2018] [Accepted: 02/07/2018] [Indexed: 12/23/2022] Open
Affiliation(s)
| | - Alexander A Wurm
- Division of Hematology and Oncology, University Hospital Leipzig, Leipzig, Germany
| | - Dennis Gerloff
- Department of Dermatology and Venereology, University Hospital Halle, Halle (Saale), Germany
| | - Christiane Katzerke
- Division of Hematology and Oncology, University Hospital Leipzig, Leipzig, Germany
| | | | - Jens-Uwe Hartmann
- Division of Hematology and Oncology, University Hospital Leipzig, Leipzig, Germany
| | - Franziska Wilke
- Division of Hematology and Oncology, University Hospital Leipzig, Leipzig, Germany
| | - Christian Thiede
- Medical Clinic and Polyclinic 1, Carl Gustav Carus University Hospital at the Technical University Dresden, Dresden, Germany
| | - Carsten Müller-Tidow
- Department of Medicine V, Hematology, Oncology and Rheumatology, University Hospital of Heidelberg, Heidelberg, Germany
| | - Dietger Niederwieser
- Division of Hematology and Oncology, University Hospital Leipzig, Leipzig, Germany
| | - Gerhard Behre
- Division of Hematology and Oncology, University Hospital Leipzig, Leipzig, Germany.
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8
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Marschall P, Hübner NO, Maletzki S, Wilke F, Dittmann K, Kramer A. Attitudes and perceptions of health care workers in Northeastern Germany about multidrug-resistant organisms. Am J Infect Control 2016; 44:e91-4. [PMID: 26897700 DOI: 10.1016/j.ajic.2015.12.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/15/2015] [Accepted: 12/21/2015] [Indexed: 11/26/2022]
Abstract
There were 256 health care workers in 39 facilities who were interviewed about their perceptions of the quality of care of patients with and without multidrug-resistant organisms based on a standardized questionnaire. There are remarkable differences in the responses between facility types (acute care hospitals, long-term care hospitals, rehabilitation hospitals, and home care services). Hygiene management must be specifically tailored to the requirements of each facility.
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9
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Pflugrad H, Meyer GJ, Dirks M, Raab P, Tryc AB, Goldbecker A, Worthmann H, Wilke F, Boellaard R, Yaqub M, Berding G, Weissenborn K. Cerebral microglia activation in hepatitis C virus infection correlates to cognitive dysfunction. J Viral Hepat 2016; 23:348-57. [PMID: 26768955 DOI: 10.1111/jvh.12496] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 11/02/2015] [Indexed: 01/16/2023]
Abstract
Hepatitis C virus (HCV) infection may induce chronic fatigue and cognitive dysfunction. Virus replication was proven within the brain and HCV-positive cells were identified as microglia and astrocytes. We hypothesized that cerebral dysfunction in HCV-afflicted patients is associated with microglia activation. Microglia activation was assessed in vivo in 22 patients with chronic HCV infection compared to six healthy controls using [(11) C]-PK11195 Positron Emission Tomography (PET) combined with magnetic resonance tomography for anatomical localization. Patients were subdivided with regard to their PCR status, Fatigue Impact Scale score (FIS) and attention test sum score (ATS). A total of 12 patients (54.5%) were HCV PCR positive [of which 7 (58.3%) had an abnormal FIS and 7 (58.3%) an abnormal ATS], 10 patients (45.5%) were HCV PCR negative (5 (50%) each with an abnormal FIS or ATS). Patients without attention deficits showed a significantly higher accumulation of [(11) C]-PK11195 in the putamen (P = 0.05), caudate nucleus (P = 0.03) and thalamus (P = 0.04) compared to controls. Patients with and without fatigue did not differ significantly with regard to their specific tracer binding in positron emission tomography. Preserved cognitive function was associated with significantly increased microglia activation with predominance in the basal ganglia. This indicates a probably neuroprotective effect of microglia activation in HCV-infected patients.
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Affiliation(s)
- H Pflugrad
- Department of Neurology, Hannover Medical School, Hannover, Germany.,Integrated Research and Treatment Centre Transplantation, Hannover Medical School, Hannover, Germany
| | - G-J Meyer
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - M Dirks
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - P Raab
- Department of Diagnostic and Interventional Neuroradiology, Hannover Medical School, Hannover, Germany
| | - A B Tryc
- Department of Neurology, Hannover Medical School, Hannover, Germany.,Integrated Research and Treatment Centre Transplantation, Hannover Medical School, Hannover, Germany
| | - A Goldbecker
- Department of Neurology, Hannover Medical School, Hannover, Germany.,Integrated Research and Treatment Centre Transplantation, Hannover Medical School, Hannover, Germany
| | - H Worthmann
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - F Wilke
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - R Boellaard
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands
| | - M Yaqub
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands
| | - G Berding
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - K Weissenborn
- Department of Neurology, Hannover Medical School, Hannover, Germany.,Integrated Research and Treatment Centre Transplantation, Hannover Medical School, Hannover, Germany
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Wegner F, Nabavi E, Wilke F, Ben Tayeb S, Boeck AL, Trebst C, Stangel M, Voss E, Schrader C, Ahrens J, Leffler A, Rodriguez-Raecke R, Dengler R, Geworski L, Bengel F, Berding G. Anti-LGI1 and anti-NMDA receptor encephalitis show distinct patterns of brain glucose metabolism in FDG-PET. KLIN NEUROPHYSIOL 2014. [DOI: 10.1055/s-0034-1371187] [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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11
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Hübner NO, Fleßa S, Haak J, Wilke F, Hübner C, Dahms C, Hoffmann W, Kramer A. Can the Hazard Assessment and Critical Control Points (HACCP) system be used to design process-based hygiene concepts? GMS Krankenhhyg Interdiszip 2011; 6:Doc24. [PMID: 22242105 PMCID: PMC3252658 DOI: 10.3205/dgkh000181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recently, the HACCP (Hazard Analysis and Critical Control Points) concept was proposed as possible way to implement process-based hygiene concepts in clinical practice, but the extent to which this food safety concept can be transferred into the health care setting is unclear. We therefore discuss possible ways for a translation of the principles of the HACCP for health care settings. While a direct implementation of food processing concepts into health care is not very likely to be feasible and will probably not readily yield the intended results, the underlying principles of process-orientation, in-process safety control and hazard analysis based counter measures are transferable to clinical settings. In model projects the proposed concepts should be implemented, monitored, and evaluated under real world conditions.
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Affiliation(s)
- N-O Hübner
- Institute for Hygiene and Environmental Medicine, University of Greifswald, Greifswald, Germany
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12
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Derlin T, Afzal W, Wilke F, Apostolova I, Klutmann S, Meyer PT, Buhmann C, Hesse S, Buchert R. IBZM SPECT and FDG PET in the differential diagnosis of Parkinsonian syndromes: comparison with respect to inter-rater agreement. Nuklearmedizin 2010; 49:139-47. [PMID: 20502846 DOI: 10.3413/nukmed-0290] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2009] [Accepted: 05/12/2010] [Indexed: 11/20/2022]
Abstract
AIM Both IBZM SPECT and FDG PET may be used for differentiation between Parkinson's disease (PD) and atypical neurodegenerative parkinsonian syndromes (APS). However, there are only very limited data of both modalities in the same subjects. The present study compared both modalities with respect to inter-rater agreement in 30 patients with neurodegenerative parkinsonian syndromes (PS) confirmed by FP-CIT SPECT. METHODS IBZM SPECT and FDG PET were categorized as PD or APS by visual inspection of standardized report pages and statistical parametric maps (SPMs). Categorization was performed independently by five readers. Inter-rater agreement was quantified using Cohen's kappa kappa. RESULTS IBZM SPECT resulted in PD and APS in 11 and 19 cases, respectively (majoritarian categorization). Inter-rater agreement was kappa=0.64+/-0.10. FDG PET resulted in PD and APS in 12 and 18 cases, respectively (majoritarian categorization). Inter-rater agreement was kappa=0.68+/-0.07. Majoritarian diagnosis disagreed between IBZM SPECT and FDG PET in 13 cases (43%). Semi-quantitative analysis of IBZM SPECT using the striatum-to-reference distribution volume ratio was in good agreement with visual categorization (area under ROC curve 0.92). CONCLUSION In neurodegenerative PS, inter-rater agreement of visual analysis is substantial in both IBZM SPECT and FDG PET. Furthermore, (I) visual analysis of IBZM SPECT is reliable if adequate standardized image display is used, (II) visual analysis of FDG SPMs allows unique categorization as either PD or APS in most subjects, and (III) IBZM SPECT and FDG PET are discordant in a significant fraction of cases.
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Affiliation(s)
- T Derlin
- Department of Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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13
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Arlt S, Brassen S, Wilke F, Eichenlaub M, Apostolova I, Buchert R, Jahn H. Association between FDG uptake, CSF biomarkers and cognitive performance in patients with probable Alzheimer's disease. Pharmacopsychiatry 2009. [DOI: 10.1055/s-0029-1240074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Apostolova I, Lindenau M, Fiehler J, Heese O, Wilke F, Clausen M, Stodieck S, Buchert R. Detection of a possible epilepsy focus in a preoperated patient by perfusion SPECT and computer-aided subtraction analysis. Nuklearmedizin 2008; 47:N65-N68. [PMID: 18988338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- I Apostolova
- Department of Nuclear Medicine, University Medical Center Hamburg-Eppendorf
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15
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16
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Wilke F. Unusual Injury to Young Harbor Seal. J Mammal 1943. [DOI: 10.1093/jmammal/24.3.401-a] [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: 11/13/2022] Open
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