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Eckert F, Ganser K, Bender B, Schittenhelm J, Noell S, Stransky N, Hoffmann E, Zips D, Huber S, Paulsen F. P03.07.A MRI signature in preoperative imaging predicts mesenchymal stem cell features and radioresistance in primary glioblastoma stem cell cultures. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Recently, a molecular signature describing the mesenchymal / proneural features of primary stem-cell-enriched glioblastoma cultures was identified correlating with invasiveness, radiation sensitivity and patient-outcome. However, generating and characterizing primary cultures is time-consuming and this might hamper translation into clinical concepts. The aim of this study was to evaluate the use of standard preoperative MR imaging (T1ce and T2FLAIR sequences) to predict the molecular signature and thus enable the development of clinical treatment concepts based on the molecular properties of the individual tumors.
Material and Methods
For 16 patients, for whom primary stem cell enriched cultures had been characterized for their mesenchymal / proneural signature and radiation sensitivity, tumor volume (hyperintense volume in T1ce), necrosis (hypointense volume inside the tumor volume) and edema (hyperintense volume in T2FLAIR) were contoured for volumetric analysis. Volume parameters were used to calculate ratios (edema/tumor and necrosis/tumor) and a MRI signature, which was then correlated with molecular parameters and patient outcome stratified by MGMT promoter methylation.
Results
As expected, the prognosis of patients with MGMT-promoter-methylated tumors was better (n.s.) compared to those with unmethylated MGMT promoters. Neither molecular nor imaging data were significantly different between these subgroups. In the subgroup of patients with unmethylated MGMT promoter, volumetric imaging parameters correlated with the molecular signature and cellular radiation sensitivity of the stem cell enriched cultures. This association was much weaker in the subgroup with methylated MGMT promoter.
Conclusion
In the subgroup of patients with unmethylated MGMT promoter, volumetric parameters on preoperative standard MR imaging might hint at the molecular properties of the respective tumor and its radiation sensitivity. This might be a clinically applicable method to stratify treatment according to molecular stem cell subtype without tissue culture and molecular analysis.
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Affiliation(s)
- F Eckert
- Medical University Vienna , Vienna , Austria
| | - K Ganser
- Eberhard Karls University Tuebingen , Tuebingen , Germany
| | - B Bender
- Eberhard Karls University Tuebingen , Tuebingen , Germany
| | - J Schittenhelm
- Eberhard Karls University Tuebingen , Tuebingen , Germany
| | - S Noell
- Eberhard Karls University Tuebingen , Tuebingen , Germany
| | - N Stransky
- Eberhard Karls University Tuebingen , Tuebingen , Germany
| | - E Hoffmann
- Eberhard Karls University Tuebingen , Tuebingen , Germany
| | - D Zips
- Eberhard Karls University Tuebingen , Tuebingen , Germany
| | - S Huber
- Eberhard Karls University Tuebingen , Tuebingen , Germany
| | - F Paulsen
- Eberhard Karls University Tuebingen , Tuebingen , Germany
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2
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Schäfer JF, Tsiflikas I, Esser M, Dittmann H, Bender B, Gatidis S. Kombinierte Positronenemissions-Magnetresonanztomographie (PET/MRT) bei Kindern und Jugendlichen. Monatsschr Kinderheilkd 2020. [DOI: 10.1007/s00112-020-00889-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cvietusa PJ, Wagner NM, Shoup JA, Goodrich GK, Shetterly SM, King DK, Raebel MA, Riggs CS, Bender B. Digital Communication Technology: Does Offering a Choice of Modality Improve Medication Adherence and Outcomes in a Persistent Asthma Population? Perm J 2020; 25:1. [PMID: 33635779 DOI: 10.7812/tpp/20.189] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Use of digital communication technology has shown potential to improve asthma adherence and outcomes. Few studies have looked at patient preference around mode of medication reminders used to improve and maintain asthma medication adherence. OBJECTIVE To determine if, in a population already receiving automated medication reminders, offering a choice for preferred mode of reminder (text, email, phone) would improve their adherence and asthma outcomes over a 1-year period. METHODS This was a pragmatic, randomized controlled trial conducted at Kaiser Permanente Colorado involving 7522 adult patients with persistent asthma. Study patients were randomized to receive usual care or their choice of medication reminder. Differences between the 2 groups in both medication adherence and asthma outcomes were then assessed over the following year. RESULTS Only 30% of those offered a choice of medication reminder modality responded by making a choice, with 52% preferring text messaging. There was less of a decrease in adherence rate over the 1-year period in those who made a choice regarding the mode of medication refill reminder. There was no difference in asthma outcomes between those who did make a choice compared with those who did not make a choice regarding the mode of medication refill reminder. CONCLUSION In a patient population already receiving medication reminders, offering a choice about what type of technology-enabled asthma medication reminder patients wanted did not improve outcomes but did enable a subgroup to better maintain their medication adherence.
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Affiliation(s)
- P J Cvietusa
- Institute for Health Research, Kaiser Permanente Colorado, Denver, CO.,Department of Asthma, Allergy and Immunology, Colorado Permanente Medical Group, Denver, CO
| | - N M Wagner
- Institute for Health Research, Kaiser Permanente Colorado, Denver, CO
| | - J A Shoup
- Institute for Health Research, Kaiser Permanente Colorado, Denver, CO
| | - G K Goodrich
- Institute for Health Research, Kaiser Permanente Colorado, Denver, CO
| | - S M Shetterly
- Institute for Health Research, Kaiser Permanente Colorado, Denver, CO
| | - D K King
- Center for Behavioral Health Research and Services, Institute of Social and Economic Research, University of Alaska Anchorage, Anchorage, AK
| | - M A Raebel
- Institute for Health Research, Kaiser Permanente Colorado, Denver, CO
| | - C S Riggs
- Clinical Pharmacy in Primary Care, Kaiser Permanente Colorado, Denver, CO
| | - B Bender
- Division of Pediatric Behavioral Health, National Jewish Health, Denver, CO
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Sehn L, Assouline S, Bartlett N, Bosch F, Diefenbach C, Flinn I, Hong J, Kim W, Matasar M, Nastoupil L, Schuster S, Shadman M, Yoon S, Bender B, Chu W, Hernandez G, Kwan A, McCall B, Sison I, Wang C, Wei M, Yin S, Yousefi K, Budde L. MANAGING CYTOKINE RELEASE SYNDROME (CRS) AND NEUROTOXICITY WITH STEP-UP DOSING OF MOSUNETUZUMAB IN RELAPSED/REFRACTORY (R/R) B-CELL NON-HODGKIN LYMPHOMA (NHL). Hematol Oncol 2019. [DOI: 10.1002/hon.119_2630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- L.H. Sehn
- Medical Oncology; BC Cancer Centre for Lymphoid Cancer and University of British Columbia; Vancouver BC Canada
| | - S. Assouline
- Division of Hematology; Jewish General Hospital; Montréal QC Canada
| | - N.L. Bartlett
- Siteman Cancer Center; Washington University School of Medicine; St. Louis MO United States
| | - F. Bosch
- Department of Hematology; University Hospital Vall d'Hebron; Barcelona Spain
| | - C.M. Diefenbach
- Department of Hematology/Oncology; New York University Medical Center; Brooklyn NY United States
| | - I. Flinn
- Blood Cancer Research Program; Sarah Cannon Research Institute/Tennessee Oncology; Nashville TN United States
| | - J.Y. Hong
- Department of Oncology; ASAN Medical Center; Seoul Republic of Korea
| | - W.S. Kim
- Division of Hematology-Oncology; Department of Internal Medicine; Samsung Medical Center Seoul Republic of Korea
| | - M. Matasar
- Lymphoma Service; Division of Hematologic Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center; New York NY United States
| | - L. Nastoupil
- Department of Lymphoma and Myeloma; Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center; Houston TX United States
| | - S.J. Schuster
- Department of Medicine; Division of Hematology-Oncology, University of Pennsylvania; Philadelphia PA United States
| | - M. Shadman
- Medical Oncology Division; Department of Medicine, Fred Hutchinson Cancer Research Center; Seattle WA United States
| | - S.S. Yoon
- Division of Hematology/Medical Oncology; Department of Internal Medicine, Seoul National University Hospital; Seoul Republic of Korea
| | - B. Bender
- Clinical Pharmacology Development; Genentech, Inc.; South San Francisco CA United States
| | - W. Chu
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - G.M. Hernandez
- Oncology Biomarker Development; Genentech, Inc.; South San Francisco CA United States
| | - A. Kwan
- Safety Science Oncology; Genentech, Inc.; South San Francisco CA United States
| | - B. McCall
- Clinical Pharmacology Development; Genentech, Inc.; South San Francisco CA United States
| | - I. Sison
- Clinical Operations; gRED, Genentech, Inc.; South San Francisco CA United States
| | - C. Wang
- Safety Science Oncology; Genentech, Inc.; South San Francisco CA United States
| | - M.C. Wei
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - S. Yin
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - K. Yousefi
- Product Development; Biometrics, Biostatistics, Genentech, Inc.; South San Francisco CA United States
| | - L.E. Budde
- Department of Hematology and Hematopoietic Cell Transplantation; City of Hope Comprehensive Cancer Center; Duarte CA United States
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Stefanou MI, Richter H, Härtig F, Wang Y, Örgel A, Bender B, Mengel A, Ziemann U, Poli S. Recurrent ischaemic cerebrovascular events as presenting manifestations of myeloproliferative neoplasms. Eur J Neurol 2019; 26:903-e64. [PMID: 30629793 DOI: 10.1111/ene.13907] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 09/22/2018] [Accepted: 01/08/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE Myeloproliferative neoplasms (MPNs) - polycythemia vera, essential thrombocythemia and primary myelofibrosis - are associated with increased risk for ischaemic cerebrovascular events (ICVEs). Due to their low prevalence, MPNs often remain undiagnosed as the cause of ICVEs. METHODS Case records at the University of Tübingen between 2014 and 2017 were screened to identify patients with MPN-related ICVEs. Clinical features, brain imaging, laboratory findings, applied treatments and neurological outcomes were assessed. RESULTS In all, 3318 patients with ICVEs were identified, and amongst them 17 patients with MPN-related ICVEs were included in a retrospective study. In 58% of these patients, ICVEs were the first manifestation of the underlying MPN; 24% presented with transient ischaemic attack and 76% with ischaemic stroke. Potentially concurrent ICVE etiologies were noted in 70% of the patients. The majority (94%) of patients were positive for the JAK2 V617F mutation, whilst in 29% recurrent ICVEs (range two to three) were noted prior to MPN diagnosis. Early MPN diagnosis and management was the only significant prognostic factor for ICVE recurrence (P < 0.001). DISCUSSION Evidence is provided that, although rare, MPNs represent an underdiagnosed cause of recurrent ICVEs. High clinical awareness is warranted to identify an underlying MPN in patients presenting with sustained, abnormal blood count findings. Clinical algorithms for prompt MPN diagnosis and initiation of MPN treatment (e.g. cytoreductive therapy, phlebotomy) are required. As MPN management comprises a significant protective factor against ICVE recurrence, induction of MPN treatment should be regarded as an integral component of secondary stroke prevention in MPN-associated ICVEs.
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Affiliation(s)
- M I Stefanou
- Department of Neurology and Stroke, Hertie Institute for Clinical Brain Research, Eberhard-Karls University of Tübingen, Tübingen, Germany
| | - H Richter
- Department of Neurology and Stroke, Hertie Institute for Clinical Brain Research, Eberhard-Karls University of Tübingen, Tübingen, Germany
| | - F Härtig
- Department of Neurology and Stroke, Hertie Institute for Clinical Brain Research, Eberhard-Karls University of Tübingen, Tübingen, Germany
| | - Y Wang
- Department of Neurology and Stroke, Hertie Institute for Clinical Brain Research, Eberhard-Karls University of Tübingen, Tübingen, Germany
| | - A Örgel
- Department of Diagnostic and Interventional Neuroradiology, Eberhard-Karls University of Tübingen, Tübingen, Germany
| | - B Bender
- Department of Diagnostic and Interventional Neuroradiology, Eberhard-Karls University of Tübingen, Tübingen, Germany
| | - A Mengel
- Department of Neurology and Stroke, Hertie Institute for Clinical Brain Research, Eberhard-Karls University of Tübingen, Tübingen, Germany
| | - U Ziemann
- Department of Neurology and Stroke, Hertie Institute for Clinical Brain Research, Eberhard-Karls University of Tübingen, Tübingen, Germany
| | - S Poli
- Department of Neurology and Stroke, Hertie Institute for Clinical Brain Research, Eberhard-Karls University of Tübingen, Tübingen, Germany
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Bender B, Hauser TK, Korn A, Klose U, Tatagiba M, Ernemann U, Ebner FH. Depiction of the Superior Petrosal Vein Complex by 3D Contrast-Enhanced MR Angiography. AJNR Am J Neuroradiol 2018; 39:2249-2255. [PMID: 30409853 DOI: 10.3174/ajnr.a5864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 09/10/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Intraoperative obliteration of the superior petrosal vein complex has a relevant risk of postoperative complications. A large venous diameter and the absence of anastomoses have been previously suggested as possible risk factors. 3D contrast-enhanced MRA was evaluated for the identification of superior petrosal vein anatomy. MATERIALS AND METHODS Twenty-five patients (10 men; age, 20-77 years) with a 3D-MRA (voxel size, 0.4 × 0.4 × 0.5 mm3) at 3T, including the posterior fossa, were retrospectively identified. Image evaluation was performed independently by 2 neuroradiologists with respect to overall image quality and the presence, location, size, tributaries, and anastomotic veins of the superior petrosal vein complex. Additionally, 8 neurosurgical cases with intraoperative validation of the venous anatomy were examined. RESULTS All studies were of diagnostic image quality. Interobserver agreement was excellent for image-quality measurements (r = 0.751-0.982) and good for measured vessel size (r = 0.563-0.828). A total of 83 superior petrosal veins were identified. The distribution of drainage locations and identification of tributaries and anastomotic veins were consistent with previous anatomic studies. The results showed that 4.8% of superior petrosal veins had a diameter of >2 mm and lacked a visible anastomosis. All surgical cases showed excellent agreement between the MRA and the intraoperative observations. CONCLUSIONS 3D-MRA with high resolution is appropriate for analyzing the size, course, tributaries, and anastomoses of the superior petrosal vein. A total of 4.8% of the identified superior petrosal veins had to be classified as potential high-risk veins. The measurements correlated with the intraoperative findings.
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Affiliation(s)
- B Bender
- From the Department of Radiology (B.B., T.-K.H., A.K., U.K., U.E.), Diagnostic and Interventional Neuroradiology
| | - T-K Hauser
- From the Department of Radiology (B.B., T.-K.H., A.K., U.K., U.E.), Diagnostic and Interventional Neuroradiology
| | - A Korn
- From the Department of Radiology (B.B., T.-K.H., A.K., U.K., U.E.), Diagnostic and Interventional Neuroradiology.,Radiologie in Hof (A.K.), Hof, Germany
| | - U Klose
- From the Department of Radiology (B.B., T.-K.H., A.K., U.K., U.E.), Diagnostic and Interventional Neuroradiology
| | - M Tatagiba
- Department of Neurosurgery (M.T., F.H.E.), University Hospital Tübingen, Tübingen, Germany
| | - U Ernemann
- From the Department of Radiology (B.B., T.-K.H., A.K., U.K., U.E.), Diagnostic and Interventional Neuroradiology
| | - F H Ebner
- Radiologie in Hof (A.K.), Hof, Germany
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Kotikalapudi R, Martin P, Marquetand J, Lindig T, Bender B, Focke NK. Systematic Assessment of Multispectral Voxel-Based Morphometry in Previously MRI-Negative Focal Epilepsy. AJNR Am J Neuroradiol 2018; 39:2014-2021. [PMID: 30337431 DOI: 10.3174/ajnr.a5809] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 08/06/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Voxel-based morphometry is widely used for detecting gray matter abnormalities in epilepsy. However, its performance with changing parameters, smoothing and statistical threshold, is debatable. More important, the potential yield of combining multiple MR imaging contrasts (multispectral voxel-based morphometry) is still unclear. Our aim was to objectify smoothing and statistical cutoffs and systematically compare the performance of multispectral voxel-based morphometry with existing T1 voxel-based morphometry in patients with focal epilepsy and previously negative MRI. MATERIALS AND METHODS 3D T1-, T2-, and T2-weighted FLAIR scans were acquired for 62 healthy volunteers and 13 patients with MR imaging negative for focal epilepsy on a Magnetom Skyra 3T scanner with an isotropic resolution of 0.9 mm3. We systematically optimized the main voxel-based morphometry parameters, smoothing level and statistical cutoff, with T1 voxel-based morphometry as a reference. As a next step, the performance of multispectral voxel-based morphometry models, T1+T2, T1+FLAIR, and T1+T2+FLAIR, was compared with that of T1 voxel-based morphometry using gray matter concentration and gray matter volume analysis. RESULTS We found the best performance of T1 at 12 mm and a T-threshold (statistical cutoff) of 3.7 for gray matter concentration analysis. When we incorporated these parameters, after expert visual interpretation of concordant and discordant findings, we identified T1+FLAIR as the best model with a concordant rate of 46.2% and a concordant rate/discordant rate of 1.20 compared with T1 with 30.8% and 0.67, respectively. Visual interpretation of voxel-based morphometry findings decreased concordant rates from 38.5%-46.2% to 15.4%-46.2% and discordant rates from 53.8%-84.6% to 30.8%-46.2% and increased specificity across models from 33.9%-40.3% to 46.8%-54.8%. CONCLUSIONS Multispectral voxel-based morphometry, especially T1+FLAIR, can yield superior results over single-channel T1 in focal epilepsy patients with a negative conventional MR imaging.
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Affiliation(s)
- R Kotikalapudi
- From the Departments of Diagnostic and Interventional Neuroradiology (R.K., T.L., B.B.)
- Neurology and Epileptology (R.K., P.M., J.M., N.K.F.), Hertie Institute for Clinical Brain Research, University Hospital Tübingen, Tübingen, Germany
- Department of Clinical Neurophysiology (R.K., N.K.F.), University Hospital Göttingen, Göttingen, Germany
| | - P Martin
- Neurology and Epileptology (R.K., P.M., J.M., N.K.F.), Hertie Institute for Clinical Brain Research, University Hospital Tübingen, Tübingen, Germany
| | - J Marquetand
- Neurology and Epileptology (R.K., P.M., J.M., N.K.F.), Hertie Institute for Clinical Brain Research, University Hospital Tübingen, Tübingen, Germany
| | - T Lindig
- From the Departments of Diagnostic and Interventional Neuroradiology (R.K., T.L., B.B.)
| | - B Bender
- From the Departments of Diagnostic and Interventional Neuroradiology (R.K., T.L., B.B.)
| | - N K Focke
- Neurology and Epileptology (R.K., P.M., J.M., N.K.F.), Hertie Institute for Clinical Brain Research, University Hospital Tübingen, Tübingen, Germany
- Department of Clinical Neurophysiology (R.K., N.K.F.), University Hospital Göttingen, Göttingen, Germany
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Bender B, Mauro A, Horn A, Kleina T. Einzelbeitrag: Implementation bewegungsfördernder Interventionen im Setting Stationäre Langzeitversorgung. Das Gesundheitswesen 2018. [DOI: 10.1055/s-0038-1667757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- B Bender
- Institut für Pflegewisenschaft, Bielefeld, Deutschland
| | - A Mauro
- Institut für Pflegewisenschaft, Bielefeld, Deutschland
| | - A Horn
- Institut für Pflegewisenschaft, Bielefeld, Deutschland
| | - T Kleina
- Institut für Pflegewisenschaft, Bielefeld, Deutschland
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Schubert V, Bender B, Kinzel M, Peters N, Freilinger T. A novel frameshift variant in the CADASIL gene NOTCH3: pathogenic or not? J Neurol 2018; 265:1338-1342. [PMID: 29600389 DOI: 10.1007/s00415-018-8844-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 12/28/2017] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 10/17/2022]
Abstract
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leucoencephalopathy (CADASIL) represents the most common monogenic cause of adult-onset ischemic stroke and vascular dementia. It is caused by heterozygous missense mutations in the NOTCH3 gene, encoding a transmembrane receptor protein on vascular smooth muscle cells. Classical CADASIL mutations affect conserved cysteine residues of the Notch3 protein. By contrast, the role of non-canonical genetic variation in NOTCH3, in particular of variants causing a hypomorphic Notch3 protein, is subject to an ongoing scientific debate. In this context, we here report a novel NOTCH3 frameshift variant in exon 18 (NM_000435.2: c.2853_2857delTCCCG), causing a frameshift and introducing a premature stop codon, which was detected in a 43-year-old woman and her father. Both carriers of the variant were carefully evaluated, including serial follow-up in the index. Neither clinical nor imaging features provided convincing evidence for a classical CADASIL phenotype, thus reinforcing the concept of hypomorphic NOTCH3 variants most likely not being causative for CADASIL. Our finding, which is discussed in the light of the published literature, has practical implications for interpreting results of NOTCH3 molecular genetic testing as well as patient counseling.
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Affiliation(s)
- V Schubert
- Zentrum für Neurologie, Hertie-Institut für Klinische Hirnforschung, Universitätsklinikum Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
| | - B Bender
- Abteilung für Diagnostische und Interventionelle Neuroradiologie, Universitätsklinikum Tübingen, Tübingen, Germany
| | - M Kinzel
- Medizinische Genetik, MedizinZentrum Lichtenberg, Berlin, Germany
| | - N Peters
- Neurologische Klinik, Universitätsspital Basel, Basel, Switzerland
| | - T Freilinger
- Zentrum für Neurologie, Hertie-Institut für Klinische Hirnforschung, Universitätsklinikum Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany.
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Hempel JM, Schittenhelm J, Bisdas S, Brendle C, Bender B, Bier G, Skardelly M, Tabatabai G, Castaneda Vega S, Ernemann U, Klose U. In vivo assessment of tumor heterogeneity in WHO 2016 glioma grades using diffusion kurtosis imaging: Diagnostic performance and improvement of feasibility in routine clinical practice. J Neuroradiol 2017; 45:32-40. [PMID: 28865921 DOI: 10.1016/j.neurad.2017.07.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [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: 01/27/2017] [Revised: 07/04/2017] [Accepted: 07/19/2017] [Indexed: 11/19/2022]
Abstract
PURPOSE To assess the diagnostic performance of normalized and non-normalized diffusion kurtosis imaging (DKI) metrics extracted from different tumor volume data for grading glioma according to the integrated approach of the revised 2016 WHO classification. MATERIALS AND METHODS Sixty patients with histopathologically confirmed glioma, who provided written informed consent, were retrospectively assessed between 01/2013 and 08/2016 from a prospective trial approved by the local institutional review board. Mean kurtosis (MK) and mean diffusivity (MD) metrics from DKI were assessed by two blinded physicians from four different volumes of interest (VOI): whole solid tumor including (VOItu-ed) and excluding perifocal edema (VOItu), infiltrative zone (VOIed), and single slice of solid tumor core (VOIslice). Intra-class correlation coefficient (ICC) was calculated to assess inter-rater agreement. One-way ANOVA was used to compare MK between 2016 CNS WHO tumor grades. Friedman's test compared MK and MD of each VOI. Spearman's correlation coefficient was used to correlate MK with 2016 CNS WHO tumor grades. ROC analysis was performed on MK for significant results. RESULTS The MK assessment showed excellent inter-rater agreement for each VOI (ICC, 0.906-0.955). MK was significantly lower in IDHmutant astrocytoma (0.40±0.07), than in 1p/19q-confirmed oligodendroglioma (0.54±0.10, P=0.001) or IDHwild-type glioblastoma (0.68±0.13, P<0.001). MK and 2016 WHO tumor grades were strongly and positively correlated (VOItu-ed, r=0.684; VOItu, r=0.734; VOIed, r=0.625; VOIslice, r=0.698; P<0.001). CONCLUSIONS Non-normalized MK values obtained from VOItu and VOIslice showed the best reproducibility and highest diagnostic performance for stratifying glioma according to the integrated approach of the recent 2016 WHO classification.
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Affiliation(s)
- J-M Hempel
- Department of Neuroradiology, Eberhard-Karls University, Tübingen, Germany.
| | - J Schittenhelm
- Department of Pathology and Neuropathology, Institute of Neuropathology, Eberhard-Karls University, Tübingen, Germany
| | - S Bisdas
- Department of Neuroradiology, National Hospital of Neurology and Neurosurgery, University College London Hospitals, London, United Kingdom
| | - C Brendle
- Department of Neuroradiology, Eberhard-Karls University, Tübingen, Germany
| | - B Bender
- Department of Neuroradiology, Eberhard-Karls University, Tübingen, Germany
| | - G Bier
- Department of Neuroradiology, Eberhard-Karls University, Tübingen, Germany
| | - M Skardelly
- Department of Neurosurgery, Eberhard-Karls University, Tübingen, Germany
| | - G Tabatabai
- Centre of Neurooncology, Comprehensive Cancer Center Tübingen-Stuttgart, Eberhard-Karls University, Tübingen, Germany
| | - S Castaneda Vega
- Department of Preclinical Imaging and Radiopharmacy, Werner-Siemens Imaging Center, Eberhard-Karls University, Tübingen, Germany
| | - U Ernemann
- Department of Neuroradiology, Eberhard-Karls University, Tübingen, Germany
| | - U Klose
- Department of Neuroradiology, Eberhard-Karls University, Tübingen, Germany
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Giotakis AI, Bender B, Pototschnig C. [Infant Oral Tumor]. Laryngorhinootologie 2016; 95:849-850. [PMID: 27832677 DOI: 10.1055/s-0042-111511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- A I Giotakis
- Universitätsklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Universitat Innsbruck, Innsbruck, Austria
| | - B Bender
- Universitätsklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Universitat Innsbruck, Innsbruck, Austria
| | - C Pototschnig
- Universitätsklinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Universitat Innsbruck, Innsbruck, Austria
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Abstract
Anatomical basis of obstructive sleep apnea (OSA) is the collapse of the pharynx during sleep. It is considered as a result of complex interactions of structural and neuromuscular factors. Depth of sleep and body position have modulating effects. Although different areas of obstruction were identified, studies show that the sleep-mediated obstruction frequently occurs in the base of tongue area.Continuous positive airway pressure (CPAP) is the standard treatment for obstructive sleep apnea syndrome (OSAS) since more than 30 years. In several studies, treatment compliance was approximately 70%. So CPAP intolerance requires alternative surgical and non-surgical treatments.Functional electrical stimulation of upper airway muscles was investigated in the early 1980s. Studies have shown that stimulation of certain muscle groups increases the upper airway lumen. The major role of the hypoglossal nerve in upper airway obstruction was detected. The XII. cranial nerve innervates the genioglossus muscle, which stabilizes the anterior oropharynx substantially. Whereas a complete stimulation of the nerve leads to co-activation of other muscles including constrictors, the selective stimulation of anterior nerve branches causes advancement of the genioglossus.For hypoglossal nerve stimulation (HNS), the Inspire™ system and the ImThera™ device are currently approved in Europe. After extensive studies in animals and clinical examination of the concept of hypoglossal nerve stimulation (HNS), the results of the multicenter, prospective STAR study (Stimulation Therapy for Apnea Reduction) with the Inspire system were recently published. This study revealed that HNS can prevent the pharyngeal collapse without waking up the patient from sleep. The HNS with this device resulted in a significant improvement of both objective and subjective parameters of the severity of OSA.Electrical stimulation of the hypoglossal nerve is a new treatment for patients with moderate to severe OSA, who do not tolerate standard treatment.
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Affiliation(s)
- B Bender
- Klinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Universität Innsbruck
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Ruesseler M, Sterz J, Bender B, Hoefer S, Walcher F. The effect of video-assisted oral feedback versus oral feedback on surgical communicative competences in undergraduate training. Eur J Trauma Emerg Surg 2016; 43:461-466. [DOI: 10.1007/s00068-016-0734-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 10/06/2016] [Indexed: 11/29/2022]
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Lindig T, Bender B, Heckl S, Nägele T, Ioanoviciu S, Horger M. MR-Bildgebung der Epstein-Barr-Virus-Enzephalitis. ROFO-FORTSCHR RONTG 2016; 188:899-903. [DOI: 10.1055/s-0042-115245] [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: 10/20/2022]
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Bender B, Capellesso ES, Lottici ME, Sentkovski J, Mielniczki-Pereira AA, Rosa LMG, Sausen TL. Growth responses and accumulation of soluble sugars in Inga marginata Wild. (Fabaceae) subjected to flooding under contrasting light conditions. BRAZ J BIOL 2016; 77:260-266. [PMID: 27533725 DOI: 10.1590/1519-6984.11315] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 02/01/2016] [Indexed: 11/21/2022] Open
Abstract
Flood events in riparian forests of southern Brazil, can be characterized as unpredictable and of low magnitude with an average duration of less than 15 days. Inga marginata is an evergreen tree which grows in Southeast South America on a wide range of environments, including riparian forests. In this paper, the interactive effects of the light environment and soil flooding on morphological parameters of I. marginata were examined. Seedlings were acclimated in two contrasting light conditions: sun or shade for 30 days. Sun and shade plants were subjected to soil flooding for two periods; five or 15 days. After 5 days, the interaction between flooding and light did not affect growth, chlorophyll content and dry mass or the root-shoot ratio. After 15 days, flooded plants from the sunny treatment had a lower shoot dry mass compared to control sun plants and flooded plants from the shaded treatment. Moreover, the higher dry mass observed for shade plants compared to sun plants, following flooding, can also be directly associated with a higher content of soluble sugars. Shade plants of I. marginata showed a greater acclimation to soil waterlogging. This acclimation appears to be associated with a larger accumulation of soluble sugars compared to non-flooded plants. The responses observed on the shade plants appear to be decisive to indicate the use of I. marginata in degraded areas.
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Affiliation(s)
- B Bender
- Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil
| | - E S Capellesso
- Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil
| | - M E Lottici
- Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil
| | - J Sentkovski
- Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil
| | - A A Mielniczki-Pereira
- Laboratório de Bioquímica e Biologia Molecular, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil
| | - L M G Rosa
- Laboratório de Ecofisiologia Vegetal, Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 7712, Agronomia, CEP 91540-000, Porto Alegre, RS, Brazil
| | - T L Sausen
- Laboratório de Ecologia e Sistemática Vegetal, Departamento de Ciências Biológicas, Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Avenida Sete de Setembro, 1621, Centro, CEP 99700-000, Erechim, RS, Brazil
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Marquetand J, van Lessen M, Bender B, Reimold M, Elsen G, Stoecker W, Synofzik M. Slowly progressive LGI1 encephalitis with isolated late-onset cognitive dysfunction: a treatable mimic of Alzheimer's disease. Eur J Neurol 2016; 23:e28-9. [DOI: 10.1111/ene.12939] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 11/04/2015] [Indexed: 11/30/2022]
Affiliation(s)
- J. Marquetand
- Department of Epileptology; Hertie-Institute for Clinical Brain Research; Tübingen Germany
| | - M. van Lessen
- Section of Neuropsychology; Department of Cognitive Neurology; Hertie-Institute for Clinical Brain Research; Tübingen Germany
| | - B. Bender
- Department of Neuroradiology; University of Tübingen; Tübingen Germany
| | - M. Reimold
- Department of Nuclear Medicine; University of Tübingen; Tübingen Germany
| | - G. Elsen
- Department of Epileptology; Hertie-Institute for Clinical Brain Research; Tübingen Germany
| | - W. Stoecker
- Euroimmun Medizinische Labordiagnostika AG; Lübeck Germany
| | - M. Synofzik
- Department of Neurodegenerative Diseases; Hertie-Institute for Clinical Brain Research; Tübingen Germany
- German Research Center for Neurodegenerative Diseases (DZNE); Tübingen Germany
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Bender B. SWI und DIR-Sequenzen: Was bringen sie für die MS-Diagnostik? ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581270] [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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Brodoefel H, Bender B, Schabel C, Fenchel M, Ernemann U, Korn A. Potential of combining iterative reconstruction with noise efficient detector design: aggressive dose reduction in head CT. Br J Radiol 2015; 88:20140404. [PMID: 25827204 DOI: 10.1259/bjr.20140404] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE With further increase of CT numbers and their dominant contribution to medical exposure, there is a recent quest for more effective dose control. While reintroduction of iterative reconstruction (IR) has proved its potential in many applications, a novel focus is placed on more noise efficient detectors. Our purpose was to assess the potential of IR in combination with an integrated circuit detector (ICD) for aggressive dose reduction in head CT. METHODS Non-contrast low-dose head CT [190 mAs; weighted volume CT dose index (CTDIvol), 33.2 mGy] was performed in 50 consecutive patients, using a new noise efficient detector and IR. Images were assessed in terms of quantitative and qualitative image quality and compared with standard dose acquisitions (320 mAs; CTDIvol, 59.7 mGy) using a conventional detector and filtered back projection. RESULTS By combining ICD and IR in low-dose examinations, the signal to noise was improved by about 13% above the baseline level in the standard-dose control group. Both, contrast-to-noise ratio (2.02 ± 0.6 vs 1.88 ± 0.4; p = 0.18) and objective measurements of image sharpness (695 ± 84 vs 705 ± 151 change in Hounsfield units per pixel; p = 0.79) were fully preserved in the low-dose group. Likewise, there was no significant difference in the grading of several subjective image quality parameters when both noise-reducing strategies were used in low-dose examinations. CONCLUSION Combination of noise efficient detector with IR allows for meaningful dose reduction in head CT without compromise of standard image quality. ADVANCES IN KNOWLEDGE Our study demonstrates the feasibility of almost 50% dose reduction in head CT dose (1.1 mSv per scan) through combination of novel dose-reducing strategies.
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Affiliation(s)
- H Brodoefel
- 1 Department of Diagnostic and Interventional Radiology, University of Tübingen, Tübingen, Germany
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Pavlovic M, Coric MK, Babic D, Nikolic K, Dodo N, Grbavac K, Babic R, Lovric S, Bender B, Buric S. Epidemiological Characteristics of Suicidal Patients Hospitalized at the Psychiatric Clinic of the University Clinical Hospital Mostar in the Period 2004-2013. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)30752-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Bender B, Rona S, Focke N, Reimold M, Lindig T, Horger M. [MR-imaging of focal cortical dysplasia]. ROFO-FORTSCHR RONTG 2014; 186:987-90. [PMID: 25340568 DOI: 10.1055/s-0034-1369334] [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: 10/24/2022]
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Mugisha E, Murokora D, Ngongo BP, Nielsen L, Bender B. The Impact of a Decade of Investment in HIV Prevention Research in Uganda. AIDS Res Hum Retroviruses 2014. [DOI: 10.1089/aid.2014.5150.abstract] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Daniel Murokora
- Independent Consultant, Uganda Women's Health Initiative, Kampala, Uganda
| | | | | | - Bonnie Bender
- International AIDS Vaccine Initiative, Nairobi, Kenya
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Ernemann U, Ebner F, Bender B, Roser F, Hauser T, Tatagiba M. Depiction of the Petrosal Vein Complex with 3D-MR-Venography. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1384133] [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: 10/20/2022]
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23
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Bender B, Widmann G, Riechelmann H, Schmutzhard J. [Cervicalgia with increased C-reactive protein levels]. Radiologe 2013; 54:262-4. [PMID: 24337651 DOI: 10.1007/s00117-013-2616-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- B Bender
- Universitätsklinik für Hals-, Nasen- und Ohrenheilkunde , Medizinische Universität Innsbruck, Anichstr. 35, 6020, Innsbruck, Österreich,
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Korn A, Bender B, Brodoefel H, Hauser TK, Danz S, Ernemann U, Thomas C. Grading of carotid artery stenosis in the presence of extensive calcifications: dual-energy CT angiography in comparison with contrast-enhanced MR angiography. Clin Neuroradiol 2013; 25:33-40. [PMID: 24343701 DOI: 10.1007/s00062-013-0276-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 12/04/2013] [Indexed: 11/28/2022]
Abstract
PURPOSE We investigated the agreement of dual-energy computed tomography angiography (DE-CTA) and contrast-enhanced magnetic resonance angiography (CE-MRA)in the quantitative measurement of stenoses of the internal carotid artery in comparison with digital subtraction angiography (DSA). METHODS A total of 21 patients with stenoses of the external carotid artery were investigated with a DE-CTA and CE-MRA before undergoing carotid angioplasty. The grade of the stenoses was assessed in axial multiplanar reformations (MPR) before and multi-intensity projections (MIP) after plaque subtraction (PS) and compared with results from CE-MRA and DSA according to the North American Symptomatic Carotid Endarterectomy Trial. RESULTS Average grades of stenoses were 80.7 ± 16.1 % (DSA), 81.4 ± 15.3 % (MRA), 80.0 ± 16.7 % (DE-CTA-MPR), and 85.2 ± 14.7 % (DE-CTA-PS-MIP). Of 21 stenoses, 6 were filiform (stenosis grade, 99 %) in the DSA examination. Five of these cases were identified as pseudo-occlusions in MRA, while four were considered as occlusions in DE-CTA-PS-MIP. Another four cases were identified as pseudo-occlusion in DE-CTA-PS-MIP, which were identified as 90 % stenosis in the DSA examination. CONCLUSIONS In comparison with the gold standard DSA, DE-CTA-MPR had a slightly better agreement in measuring the degree of stenosis of the internal carotid arteries than CE-MRA. In DE-CTA-PS-MIP images, a systematic overestimation has to be taken into account due to partial extinction of the lumen by the PS algorithm. Nevertheless, DE-CTA should be preferred in imaging patients with carotid artery stenosis in the presence of extensive calcifications.
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Affiliation(s)
- A Korn
- Department of Diagnostic and Interventional Neuroradiology, University of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany,
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van der Elst EM, Smith AD, Gichuru E, Wahome E, Musyoki H, Muraguri N, Fegan G, Duby Z, Bekker LG, Bender B, Graham SM, Operario D, Sanders EJ. Men who have sex with men sensitivity training reduces homoprejudice and increases knowledge among Kenyan healthcare providers in coastal Kenya. J Int AIDS Soc 2013; 16 Suppl 3:18748. [PMID: 24321111 PMCID: PMC3852129 DOI: 10.7448/ias.16.4.18748] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/06/2013] [Accepted: 09/25/2013] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Healthcare workers (HCWs) in Africa typically receive little or no training in the healthcare needs of men who have sex with men (MSM), limiting the effectiveness and reach of population-based HIV control measures among this group. We assessed the effect of a web-based, self-directed sensitivity training on MSM for HCWs (www.marps-africa.org), combined with facilitated group discussions on knowledge and homophobic attitudes among HCWs in four districts of coastal Kenya. METHODS We trained four district "AIDS coordinators" to provide a two-day training to local HCWs working at antiretroviral therapy-providing facilities in coastal Kenya. Self-directed learning supported by group discussions focused on MSM sexual risk practices, HIV prevention and healthcare needs. Knowledge was assessed prior to training, immediately after training and three months after training. The Homophobia Scale assessed homophobic attitudes and was measured before and three months after training. RESULTS Seventy-four HCWs (68% female; 74% clinical officers or nurses; 84% working in government facilities) from 49 health facilities were trained, of whom 71 (96%) completed all measures. At baseline, few HCWs reported any prior training on MSM anal sexual practices, and most HCWs had limited knowledge of MSM sexual health needs. Homophobic attitudes were most pronounced among HCWs who were male, under 30 years of age, and working in clinical roles or government facilities. Three months after training, more HCWs had adequate knowledge compared to baseline (49% vs. 13%, McNemar's test p<0.001); this was most pronounced in those with clinical or administrative roles and in those from governmental health providers. Compared to baseline, homophobic attitudes had decreased significantly three months after training, particularly among HCWs with high homophobia scores at baseline, and there was some evidence of correlation between improvements in knowledge and reduction in homophobic sentiment. CONCLUSIONS Scaling up MSM sensitivity training for African HCWs is likely to be a timely, effective and practical means to improve relevant sexual health knowledge and reduce personal homophobic sentiment among HCWs involved in HIV prevention, testing and care in sub-Saharan Africa.
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Affiliation(s)
- Elise M van der Elst
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Adrian D Smith
- Department of Public Health, University of Oxford, Oxford, UK
| | - Evanson Gichuru
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Elizabeth Wahome
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi, Kenya
| | | | - Nicolas Muraguri
- Department of Public Health, University of Oxford, Oxford, UK
- National AIDS and STI Control Programme, Nairobi, Kenya
| | - Greg Fegan
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi, Kenya
- Department of Public Health, University of Oxford, Oxford, UK
| | - Zoe Duby
- Desmond Tutu HIV Foundation, Cape Town, South Africa
| | | | - Bonnie Bender
- International AIDS Vaccine Initiative, Nairobi, Kenya
| | - Susan M Graham
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi, Kenya
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Don Operario
- Department of Community Health, Brown University, Providence, RI, USA
| | - Eduard J Sanders
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi, Kenya
- Department of Public Health, University of Oxford, Oxford, UK
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Karle KN, Biskup S, Schule R, Schweitzer KJ, Kruger R, Bauer P, Bender B, Nagele T, Schols L. De novo mutations in hereditary diffuse leukoencephalopathy with axonal spheroids (HDLS). Neurology 2013; 81:2039-44. [DOI: 10.1212/01.wnl.0000436945.01023.ac] [Citation(s) in RCA: 52] [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] [Indexed: 11/15/2022] Open
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Bender B, Beschorner R, Honegger J, Heckl S, Ernemann U, Horger M. New WHO described CNS tumor entities - Neue WHO-Tumorentitäten des ZNS in der Neuroradiologie. ROFO-FORTSCHR RONTG 2013; 185:1021-4. [DOI: 10.1055/s-0033-1346771] [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: 10/26/2022]
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Horger M, Honegger J, Beschorner R, Klumpp B, Heckl S, Ernemann U, Bender B. [Hypophysitis and its mimics - diagnostic imaging of hypophysitis and differential diagnosis]. ROFO-FORTSCHR RONTG 2013; 185:789-93. [PMID: 23999745 DOI: 10.1055/s-0032-1319724] [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: 10/26/2022]
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Korn A, Bender B, Fenchel M, Spira D, Schabel C, Thomas C, Flohr T, Claussen C, Bhadelia R, Ernemann U, Brodoefel H. Sinogram affirmed iterative reconstruction in head CT: Improvement of objective and subjective image quality with concomitant radiation dose reduction. Eur J Radiol 2013; 82:1431-5. [DOI: 10.1016/j.ejrad.2013.03.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 03/06/2013] [Accepted: 03/10/2013] [Indexed: 10/27/2022]
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Weiss D, Walach M, Meisner C, Fritz M, Scholten M, Gharabaghi A, Plewnia C, Breit S, Bender B, Wächter T, Krüger R. Kombinierte Stimulation des Nucleus subthalamicus und der Substantia nigra pars reticulata für Gang-Freezing: Ergebnisse einer randomisierten klinischen Studie. KLIN NEUROPHYSIOL 2013. [DOI: 10.1055/s-0033-1337139] [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: 10/27/2022]
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Korn A, Fenchel M, Bender B, Danz S, Thomas C, Ketelsen D, Claussen CD, Moonis G, Krauss B, Heuschmid M, Ernemann U, Brodoefel H. High-pitch dual-source CT angiography of supra-aortic arteries: assessment of image quality and radiation dose. Neuroradiology 2012; 55:423-30. [PMID: 23223824 DOI: 10.1007/s00234-012-1120-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Accepted: 11/13/2012] [Indexed: 01/31/2023]
Abstract
INTRODUCTION High-pitch CT angiography (CTA) is a recent innovation that allows significant shortening of scan time with volume coverage of 43 mm per second. The aim of our study was to assess this technique in CTA of the head and neck. METHODS CTA of supra-aortic arteries was performed in 50 patients using two acquisition protocols: conventional single-source 64-slice (pitch 1.2) and high-pitch dual-source 128-slice CT (pitch 3.2). Subjective and objective image quality of supra-aortic vessel ostia as well as intra- and extra-cranial segments was retrospectively assessed by blinded readers and radiation dose compared between the two protocols. RESULTS Conventional and high-pitch CTA achieved comparable signal-to-noise ratios in arterial (54.3 ± 16.5 versus 57.3 ± 14.8; p = 0.50) and venous segments (15.8 ± 6.7 versus 18.9 ± 8.9; p = 0.21). High-pitch scanning was, however, associated with sharper delineation of vessel contours and image quality significantly improved at the level of supra-aortic vessel ostia (p < 0.0001) as well as along the brachiocephalic trunk (p < 0.0001), the subclavian arteries (p < 0.0001), proximal common carotid arteries (p = 0.01), and vertebral V1 segments (p < 0.0001). Using the high-pitch mode, the dose-length product was reduced by about 35% (218.2 ± 30 versus 141.8 ± 20 mGy × cm). CONCLUSIONS Due to elimination of transmitted cardiac motion, high-pitch CTA of the neck improves image quality in the proximity of the aortic arch while significantly lowering radiation dose. The technique thus qualifies as a promising alternative to conventional spiral CTA and may be particularly useful for identification of ostial stenosis.
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Affiliation(s)
- A Korn
- Department of Diagnostic und Interventional Neuroradiology, Hoppe-Seyler-Strasse 3, 72076 Tuebingen, Germany
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Mänz C, Reimold M, Bender B, Bares R, Ernemann U, Horger M. [Imaging diagnosis of Alzheimer's disease]. ROFO-FORTSCHR RONTG 2012; 184:1079-82. [PMID: 23212812 DOI: 10.1055/s-0032-1319030] [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: 10/27/2022]
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Ngongo BP, Priddy F, Park H, Bender B, Fast P, Anzala O, Mutua G, Ruzagira E, Kamali A, Karita E, Mugo P, Chomba E, Bekker L, Roux S, Nanvubya A, Mebrahtu T. Developing standards of care for HIV prevention research in developing countries – a case study of ten research centers in Eastern and Southern Africa. Retrovirology 2012. [PMCID: PMC3442024 DOI: 10.1186/1742-4690-9-s2-p117] [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: 11/10/2022] Open
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Haukoos JS, Lyons MS, Lindsell CJ, Thrun MW, Hopkins E, Bender B, Byyny RL, Rothman RE. The Authors Reply. Am J Epidemiol 2012. [DOI: 10.1093/aje/kws306] [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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Bender B, Bornemann A, Reimold M, Ernemann U, Horger M. [Imaging findings in autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) - CADASIL - the most frequent familial stroke syndrome]. ROFO-FORTSCHR RONTG 2012; 184:679-83. [PMID: 22893421 DOI: 10.1055/s-0032-1318829] [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: 10/28/2022]
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Bender B, Korn A, Ioanoviciu S, Horger M. Epiploic Appendagitis - Appendicitis epiploica: benigne Differenzialdiagnose des akuten Abdomens. ROFO-FORTSCHR RONTG 2012; 184:489-91. [DOI: 10.1055/s-0032-1315414] [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: 10/27/2022]
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Ngongo PB, Priddy F, Park H, Becker J, Bender B, Fast P, Anzala O, Mutua G, Ruzagira E, Kamali A, Karita E, Mugo P, Chomba E, Bekker LG, Roux S, Nanvubya A, Mebrahtu T. Developing standards of care for HIV prevention research in developing countries -- a case study of 10 research centers in Eastern and Southern Africa. AIDS Care 2012; 24:1277-89. [PMID: 22452384 DOI: 10.1080/09540121.2012.656572] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Standards of care provided to volunteers in HIV prevention research in developing countries are evolving. Inconsistency in standards, particularly within a research network highlights the need to balance volunteers' health and wellness with the efficient conduct of research. Ten research centers (RC's) in East and Southern Africa affiliated with the International AIDS Vaccine Initiative (IAVI) were studied using a mixed methods approach to understand variations, similarities and gaps in services provided, recipients of services, referral systems, and barriers to referral uptake. These data were then used to develop expected standards across the 10 RCs. Findings indicated that RCs consistently provided HIV risk reduction and family planning (FP) counseling, male condoms, management of sexually transmitted infections, CD-4 counts, and general medical care to volunteers and non-research volunteers. Services that were less consistently provided on-site included: female condoms, adult male circumcision (AMC), antiretroviral therapy (ART) and post-exposure prophylaxis (PEP) in case of rape. The FP options provided on-site varied, with few providing implants, intrauterine devices, tubal ligation, and vasectomy. Most RCs had established referral systems for ART, AMC, PEP, and FP, but few had referral points for psychosocial services. Few RCs had comprehensive guidelines on referrals other than those related to adverse events. Findings indicate that the greatest challenges for referral uptake were transportation and health care costs, poor quality and inconsistency of services at some referral points. Few RCs covered the cost of referrals for non-study related adverse events. A collaborative process between IAVI and the RCs was undertaken to reach consensus on expected standards of care. A set of required and recommended services to be provided on-site or by referral was developed. In developing such standards, we tried to balance scientific priorities, equity, contextual realities, community expectations, and cost-effectiveness.
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Affiliation(s)
- Prince Bahati Ngongo
- International AIDS Vaccine Initiative, Country and Regional Programs, New York, USA.
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Korn A, Fenchel M, Bender B, Danz S, Hauser TK, Ketelsen D, Flohr T, Claussen CD, Heuschmid M, Ernemann U, Brodoefel H. Iterative reconstruction in head CT: image quality of routine and low-dose protocols in comparison with standard filtered back-projection. AJNR Am J Neuroradiol 2012; 33:218-24. [PMID: 22033719 DOI: 10.3174/ajnr.a2749] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE IR has recently demonstrated its capacity to reduce noise and permit dose reduction in abdominal and thoracic CT applications. The purpose of our study was to assess the potential benefit of IR in head CT by comparing objective and subjective image quality with standard FBP at various dose levels. MATERIALS AND METHODS Ninety consecutive patients were randomly assigned to undergo nonenhanced and contrast-enhanced head CT at a standard dose (320 mAs; CTDI, 60.1) or 15% (275 mAs; CTDI, 51.8) and 30% (225 mAs; CTDI, 42.3) dose reduction. All acquisitions were reconstructed with IR in image space, and FBP and images were assessed in terms of quantitative and qualitative IQ. RESULTS Compared with FBP, IR resulted in lower image noise (P ≤ .02), higher CNR (P ≤ .03), and improved subjective image quality (P ≤ .002) at all dose levels. While degradation of objective and subjective IQ at 15% dose reduction was fully compensated by IR (CNR, 1.98 ± 0.4 at 320 mAs with FBP versus 2.05 ± 0.4 at 275 mAs with IR; IQ, 1.8 versus 1.7), IQ was considerably poorer at 70% standard dose despite using the iterative approach (CNR, 1.98 ± 0.3 at 320 mAs with FBP versus 1.85 ± 0.4 at 225 mAs with IR, P = .18; IQ, 1.8 versus 2.2, P = .03). Linear regression analysis of CNR against tube current suggests that standard CNR may be obtained until approximately 20.4% dose reduction when IR is used. CONCLUSIONS Compared with conventional FBP, IR of head CT is associated with significant improvement of objective and subjective IQ and may allow dose reductions in the range of 20% without compromising standard image quality.
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Affiliation(s)
- A Korn
- Department of Diagnostic und Interventional Neuroradiology, Eberhard-Karls-University, Tübingen, Germany
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Gani C, Müller A, Eckert F, Schroeder C, Bender B, Pantazis G, Bamberg M, Berger B. Outcome after whole brain radiotherapy alone in intracranial leptomeningeal carcinomatosis from solid tumors. Strahlenther Onkol 2012; 188:148-53. [DOI: 10.1007/s00066-011-0025-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 09/15/2011] [Indexed: 11/28/2022]
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Bender B, Mänz C, Korn A, Nägele T, Klose U. Optimized 3D magnetization-prepared rapid acquisition of gradient echo: identification of thalamus substructures at 3T. AJNR Am J Neuroradiol 2011; 32:2110-5. [PMID: 21979493 DOI: 10.3174/ajnr.a2705] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Because the substructures of the thalamus are not visible on standard T1- and T2-weighted MR images, planning of deep brain stimulation implantation relies on stereotactic atlas coordinates. The goal of the present work was to test whether an optimized 3D MPRAGE protocol can depict thalamus substructures. MATERIALS AND METHODS After optimization of the TI to maximize contrast between gray matter and white matter, 6 healthy subjects were scanned at 3T with the optimized 3D MPRAGE. The results were compared with stereotactic atlases, and 2 expert readers trained in thalamic anatomy identified the 4 large thalamic nuclei groups. RESULTS There was a high agreement between the different atlases and the resulting MR images. The 4 large thalamic nuclei groups (anterior, lateral, medial, posterior) could be detected reliably. The inter-reader consistency on the size and location was 75%-92%. CONCLUSIONS The optimized 3D MPRAGE protocol improves contrast in the thalamus, and the 4 large thalamic nuclei groups can be identified with high inter-reader agreement.
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Affiliation(s)
- B Bender
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Tübingen, Tübingen, Germany.
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Lescher S, Bender B, Eifler R, Haas F, Gruber K, Felber S. Isometric non-machine-based prevention training program: effects on the cross-sectional area of the paravertebral muscles on magnetic resonance imaging. Clin Neuroradiol 2011; 21:217-22. [PMID: 21904940 DOI: 10.1007/s00062-011-0104-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2011] [Accepted: 08/15/2011] [Indexed: 10/17/2022]
Abstract
PURPOSE The purpose of this study was to determine potential effects of isometric non-machine-based training on the cross-sectional area (CSA) of the paravertebral muscles in volunteers who were participants in a prevention program. An increase in the CSA of back muscles after various machine-based exercises have been reported but non-machine-based training programs have not been adressed before. MATERIALS AND METHODS In the study 14 volunteers, who were participants of a company internal prevention program, underwent a magnetic resonance (MR) examination before and after a 3 months training program to improve back muscle strength. The MRI protocol consisted of T1-weighted and T2-weighted images aligned to the intervertebral disc spaces. The CSAs of the erector spinae and quadratus lumborum muscles were assessed twice by 2 operators at the levels L3/4, L4/5 and L5/S1. RESULTS Out of 14 subjects 11 completed the training. The recorded CSA values exhibited an intrarater and intrarater correlation coefficient ranging from 0.949 to 0.989. There was an increase in CSA in all subjects after the training period (mean increase 8%). CONCLUSIONS A 3-month isometric training program is sufficient to effect measurable increases in back muscles volume. The study demonstrated the usefulness of MRI to quantify such changes as a measure of training efficacy and compliance into the training program. These results represent a rationale for further studies to determine the effect of different training methods on the CSA of back muscles and to correlate structural changes with clinical symptoms in chronic low back pain syndrome.
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Affiliation(s)
- S Lescher
- Institut für diagnostische und interventionelle Radiologie, Stiftungsklinikum Mittelrhein Koblenz, Johannes-Müller-Str. 7, 56068, Koblenz, Deutschland.
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Korn A, Bisdas S, Bender B, Ernemann U, Horger M. [Glioblastoma multi-forms]. ROFO-FORTSCHR RONTG 2011; 183:411-14. [PMID: 21850738 DOI: 10.1055/s-0031-1274650] [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: 10/18/2022]
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Abstract
It is well known that, at higher field strength, T2*-weighted images show an extensive heterogeneity in white matter fiber bundles. The basis of this phenomenon is still under discussion, as many factors, such as iron concentration, myelination and tissue microstructure, could influence relaxation times. Furthermore, fiber direction in relation to the main magnetic field seems to influence T2* relaxation times. In this study, diffusion tensor imaging and T2* measurements were combined in seven subjects with the head in a normal and tilted position. It was shown that fiber orientation has a strong influence on T2* in the human brain, with the average T2* value changing from 49 ms for a perpendicular orientation to B(0) to 57 ms for a parallel orientation to B(0). Nevertheless, T2* times showed a wide variety of values at any orientation towards B(0).
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Affiliation(s)
- B Bender
- Department of Diagnostic and Interventional Neuroradiology, Universitätsklinikum Tübingen, Tübingen, Germany.
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Sankoff J, Caruso E, Bender B, Haukoos J, Denver E. 216: Acceptance of Free Routine Opt-Out Rapid HIV Screening In the Emergency Department: Assessment of Race/Ethnicity and Payer Status. Ann Emerg Med 2010. [DOI: 10.1016/j.annemergmed.2010.06.264] [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: 10/19/2022]
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Ngongo Bahati P, Kidega W, Ogutu H, Odada J, Bender B, Fast P, Becker J, Price M. Ensuring quality of services in HIV prevention research settings: findings from a multi-center quality improvement pilot in East Africa. AIDS Care 2010; 22:119-25. [PMID: 20390489 DOI: 10.1080/09540120903012569] [Citation(s) in RCA: 5] [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] [Indexed: 10/20/2022]
Abstract
Quality improvement (QI) has been widely implemented in health services but has not been widely applied in HIV prevention research. Most prevention research centers have commonly employed traditional approaches (e.g., checklists) to quality control that document what has been done but not the quality of what has been done. Unlike other health settings, prevention research settings have unique characteristics and ethical requirements that require the development or adaptation of specific quality indicators. A QI model for health services was adapted for use in prevention research settings and was piloted between August 2006 and July 2007 at three research centers in East Africa. Four hundred and twenty-six volunteers exit interviews were administered in two cycles. Quantitative and qualitative data were analyzed using Excel worksheets. QI meeting reports and QI plans were used to complement data from exit interviews. On average, 52% of total enrolled volunteers participated in the exit interview. The designed QI plans successfully helped reduce volunteers' reported waiting time to see counselors (p<0.001) and pharmacists (p<0.001). It also increased the percentage of interviewed volunteers who reported being counseled on family planning at clinical trials (from 66 to 93%; p=0.02) at follow-up visits, and who were refreshed on informed consent at follow-up visits (from 90 to 96%; p=0.009). The percentage of interviewed volunteers that expressed satisfaction with services received from counselors increased (from 87 to 94%; p=0.009) while the percentage of volunteer satisfied with services from trial physicians remained constant (93%). The majority of volunteers interviewed reported satisfaction with other major components of research such as confidentiality, understanding of trial objectives, benefits and risks of participation, and risk reduction counseling. However, satisfaction with services from community outreach workers and other staff at research centers dropped over the course of the study (from 88% in Cycle 1 to 74% in Cycle 3; p= < 0.001). Increased commitment to QI is crucial in ensuring quality of services and ethical conduct of HIV prevention research centers.
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Bender B, Nägele T, Ernemann U, Klose U. Bestimmung des Anteils von zerebrospinaler und interstitieller Flüssigkeit im Gehirn. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221243] [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: 10/20/2022]
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Xiang H, Reyes A, Merchant M, Bender B, Jumbe N, Young J, Gelzleichter T, Vaidyanathan A, Peterson A, Damico L. 528 POSTER Supporting MetMAb entry into the clinic with nonclinical pharmacokinetic (PK) and pharmacodynamic (PD) information. European Journal of Cancer Supplements 2008. [DOI: 10.1016/s1359-6349(08)72462-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bender B, Xiang H, Reyes A, Damico L, Merchant M, Peterson A, Forrest W, Jumbe N. 539 POSTER Translational pharmacokinetic (PK), pharmacodynamic (PD) modeling and simulation analysis of MetMAb. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72473-x] [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: 10/21/2022] Open
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Bender B, Friedman B, Davitt M, Esses D, Gallagher E. 118: Metoclopramide in the Emergency Department: A Randomized Factorial Design Study to Determine the Influence of Dose and Diphenhydramine on Akathisia. Ann Emerg Med 2008. [DOI: 10.1016/j.annemergmed.2008.06.032] [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: 10/21/2022]
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