1
|
Juratli MA, Pollmann NS, Oppermann E, Mohr A, Roy D, Schnitzbauer A, Michalik S, Vogl T, Stoecklein NH, Houben P, Katou S, Becker F, Hoelzen JP, Andreou A, Pascher A, Bechstein WO, Struecker B. Extracellular vesicles as potential biomarkers for diagnosis and recurrence detection of hepatocellular carcinoma. Sci Rep 2024; 14:5322. [PMID: 38438456 PMCID: PMC10912302 DOI: 10.1038/s41598-024-55888-8] [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: 05/16/2023] [Accepted: 02/28/2024] [Indexed: 03/06/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary malignant liver tumor and a leading cause of cancer-related deaths worldwide. However, current diagnostic tools are often invasive and technically limited. In the last decade, non-invasive liquid biopsies have transformed the field of clinical oncology, showcasing the potential of various liquid-biopsy derived analytes, including extracellular vesicles (EVs), to diagnose and monitor HCC progression and metastatic spreading, serving as promising novel biomarkers. A prospective single-center cohort study including 37 HCC patients and 20 patients with non-malignant liver disease (NMLD), as a control group, was conducted. Serum EVs of both groups were analyzed before and after liver surgery. The study utilized microbead-based magnetic particle sorting and flow cytometry to detect 37 characteristic surface proteins of EVs. Furthermore, HCC patients who experienced tumor recurrence (R-HCC) within 12 months after surgery were compared to HCC patients without recurrence (NR-HCC). EVs of R-HCC patients (n = 12/20) showed significantly lower levels of CD31 compared to EVs of NR-HCC patients (p = 0.0033). EVs of NMLD-group showed significantly higher expressions of CD41b than EVs of HCC group (p = 0.0286). The study determined significant short-term changes in CD19 dynamics in EVs of the NMLD-group, with preoperative values being significantly higher than postoperative values (p = 0.0065). This finding of our pilot study suggests EVs could play a role as potential targets for the development of diagnostic and therapeutic approaches for the early and non-invasive detection of HCC recurrence. Further, more in-depth analysis of the specific EV markers are needed to corroborate their potential role as diagnostic and therapeutic targets for HCC.
Collapse
Affiliation(s)
- Mazen A Juratli
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany.
- Department of General, Transplant and Thorax Surgery, Frankfurt University Hospital, Goethe University, VisceralFrankfurt, Germany.
| | - Nicola S Pollmann
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| | - Elsie Oppermann
- Department of General, Transplant and Thorax Surgery, Frankfurt University Hospital, Goethe University, VisceralFrankfurt, Germany
| | - Annika Mohr
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| | - Dhruvajyoti Roy
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Andreas Schnitzbauer
- Department of General, Transplant and Thorax Surgery, Frankfurt University Hospital, Goethe University, VisceralFrankfurt, Germany
| | - Sabine Michalik
- Department of Diagnostic and Interventional Radiology, Frankfurt University Hospital, Goethe University, Frankfurt, Germany
| | - Thomas Vogl
- Department of Diagnostic and Interventional Radiology, Frankfurt University Hospital, Goethe University, Frankfurt, Germany
| | - Nikolas H Stoecklein
- General, Visceral and Pediatric Surgery, University Hospital and Medical Faculty of the Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Philipp Houben
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| | - Shadi Katou
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| | - Felix Becker
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| | - Jens Peter Hoelzen
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| | - Andreas Andreou
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| | - Andreas Pascher
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| | - Wolf O Bechstein
- Department of General, Transplant and Thorax Surgery, Frankfurt University Hospital, Goethe University, VisceralFrankfurt, Germany
| | - Benjamin Struecker
- Department of General, Visceral and Transplant Surgery, Muenster University Hospital, Muenster University, Muenster, Germany
| |
Collapse
|
2
|
Fischer D, Toenges R, Kiil K, Michalik S, Thalhammer A, Bug G, Gökbuget N, Lang F. Liver failure after treatment with inotuzumab and polychemotherapy including PEG-asparaginase in a patient with relapsed Philadelphia chromosome-negative acute lymphoblastic leukemia. Ann Hematol 2024; 103:489-498. [PMID: 37999763 PMCID: PMC10798915 DOI: 10.1007/s00277-023-05495-w] [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: 07/03/2023] [Accepted: 10/03/2023] [Indexed: 11/25/2023]
Abstract
We present the case of a 58-year-old female patient who presented with an extramedullary B-ALL relapse after prior allogenic HSCT and blinatumomab therapy. The patient died from complications of a drug-induced acute liver failure after a salvage therapy combining inotuzumab ozogamicin (InO)-based induction followed by consolidation with high dose MTX and pegaspargase based on the GMALL protocol for older ALL patients. After a diagnosis of the extramedullary relapse in the form of a retro vesical chloroma, the patient received an individualized multi-agent chemotherapy based on induction chemotherapy for older patients in combination with InO. After four administrations of InO, in combination with vincristine, dexamethasone, cytarabine, and cyclophosphamide, CT-imaging showed a reduction in volume of the chloroma and response to therapy. Consolidation with high-dose methotrexate and pegaspargase was administered. The patient developed toxic liver damage manifested by hyperbilirubinemia and progressive hepatic encephalopathy. The diagnostic criteria for VOD were met, and therapy with defibrotide was initiated. Liver biopsy revealed no histological signs of VOD but instead steatohepatitis indicative of drug-induced toxicity. The patient ultimately died of hemorrhagic shock through postinterventional hemorrhage after liver biopsy. In conclusion, although InO shows promising results in the therapy of r/r ALL with and without additional chemotherapy, the combination with MTX and pegaspargase in an intensively pretreated patient with relapse after HCST may impart an increased risk for liver-related toxicity. Special caution is required when assessing fitness for further liver toxic regimens. A key takeaway is also the reminder that InO can cause liver damage not only in the form of VOD but also through direct hepatocellular toxicity.
Collapse
Affiliation(s)
- Daniel Fischer
- Department of Medicine, Hematology and Oncology, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Rosa Toenges
- Department of Medicine, Hematology and Oncology, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Kati Kiil
- Senckenberg Institute of Pathology, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Sabine Michalik
- Department of Radiology, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Axel Thalhammer
- Department of Radiology, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Gesine Bug
- Department of Medicine, Hematology and Oncology, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Nicola Gökbuget
- Department of Medicine, Hematology and Oncology, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Fabian Lang
- Department of Medicine, Hematology and Oncology, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany.
| |
Collapse
|
3
|
Vogl TJ, Mader C, Michalik S, Hammerstingl R, Koch V. [Small hepatocellular carcinoma : Diagnostics according to guidelines and established in the clinical setting]. Radiologe 2022; 62:239-246. [PMID: 35037980 DOI: 10.1007/s00117-021-00965-6] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2021] [Indexed: 11/26/2022]
Abstract
CLINICAL/METHODICAL ISSUE The diagnosis of hepatocellular carcinoma (HCC)-especially the characterization of small lesions <2 cm-continues to be a radiological challenge. STANDARD RADIOLOGICAL METHODS In the current S3 guideline on diagnosis and therapy of HCC, contrast-enhanced imaging examinations, such as contrast-enhanced ultrasonography (CEUS), computed tomography (CT), and magnetic resonance imaging (MRI), are still the diagnostic standard. METHODOLOGICAL INNOVATIONS HCC in the cirrhotic liver should be diagnosed by its typical contrast-enhanced pattern in the MRI. In addition, the use of quality assurance instruments such as LI-RADS (Liver Imaging Reporting and Data System) contributes to the desired consistency of findings, even with small ambiguous findings. PERFORMANCE Many studies have shown that the LI-RADS classification reflects the likelihood of HCC and other malignant liver lesions. ACHIEVEMENTS Guidelines and quality assurance instruments contribute to a more precise diagnosis in patients with suspected HCC. PRACTICAL RECOMMENDATIONS A guideline-compliant diagnostic algorithm and the LI-RADS should be used across the board for accurate HCC diagnostics.
Collapse
Affiliation(s)
- Thomas J Vogl
- Institut für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Frankfurt, Johann Wolfgang Goethe Universität, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland.
| | - Christoph Mader
- Institut für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Frankfurt, Johann Wolfgang Goethe Universität, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland
| | - Sabine Michalik
- Institut für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Frankfurt, Johann Wolfgang Goethe Universität, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland
| | - Renate Hammerstingl
- Institut für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Frankfurt, Johann Wolfgang Goethe Universität, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland
| | - Vitali Koch
- Institut für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Frankfurt, Johann Wolfgang Goethe Universität, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland
| |
Collapse
|
4
|
Mader C, Bernatz S, Michalik S, Koch V, Martin SS, Mahmoudi S, Basten L, Grünewald LD, Bucher A, Albrecht MH, Vogl TJ, Booz C. Quantification of COVID-19 Opacities on Chest CT - Evaluation of a Fully Automatic AI-approach to Noninvasively Differentiate Critical Versus Noncritical Patients. Acad Radiol 2021; 28:1048-1057. [PMID: 33741210 PMCID: PMC7936551 DOI: 10.1016/j.acra.2021.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/14/2021] [Accepted: 03/01/2021] [Indexed: 12/31/2022]
Abstract
Objectives To evaluate the potential of a fully automatic artificial intelligence (AI)-driven computed tomography (CT) software prototype to quantify severity of COVID-19 infection on chest CT in relationship with clinical and laboratory data. Methods We retrospectively analyzed 50 patients with laboratory confirmed COVID-19 infection who had received chest CT between March and July 2020. Pulmonary opacifications were automatically evaluated by an AI-driven software and correlated with clinical and laboratory parameters using Spearman-Rho and linear regression analysis. We divided the patients into sub cohorts with or without necessity of intensive care unit (ICU) treatment. Sub cohort differences were evaluated employing Wilcoxon-Mann-Whitney-Test. Results We included 50 CT examinations (mean age, 57.24 years), of whom 24 (48%) had an ICU stay. Extent of COVID-19 like opacities on chest CT showed correlations (all p < 0.001 if not otherwise stated) with occurrence of ICU stay (R = 0.74), length of ICU stay (R = 0.81), lethal outcome (R = 0.56) and length of hospital stay (R = 0.33, p < 0.05). The opacities extent was correlated with laboratory parameters: neutrophil count (NEU) (R = 0.60), lactate dehydrogenase (LDH) (R = 0.60), troponin (TNTHS) (R = 0.55) and c-reactive protein (CRP) (R = 0.51). Differences (p < 0.001) between ICU group and non-ICU group concerned longer length of hospital stay (24.04 vs. 10.92 days), higher opacity score (12.50 vs. 4.96) and severity of laboratory data changes such as c-reactive protein (11.64 vs. 5.07 mg/dl, p < 0.01). Conclusions Automatically AI-driven quantification of opacities on chest CT correlates with laboratory and clinical data in patients with confirmed COVID-19 infection and may serve as non-invasive predictive marker for clinical course of COVID-19.
Collapse
Affiliation(s)
- Christoph Mader
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany.
| | - Simon Bernatz
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany; Dr. Senckenberg Institute for Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Sabine Michalik
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Vitali Koch
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Simon S Martin
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Scherwin Mahmoudi
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Lajos Basten
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Leon D Grünewald
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Andreas Bucher
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Moritz H Albrecht
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Thomas J Vogl
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Christian Booz
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| |
Collapse
|
5
|
Mader C, Michalik S, Vogl T. Erratum: Nicht-okklusive Mesenterialischämie bei Sars-CoV 2 Infektion. ROFO-FORTSCHR RONTG 2021. [DOI: 10.1055/s-0037-1599672] [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)
- C Mader
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie, Frankfurt am Main
| | - S Michalik
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie, Frankfurt am Main
| | - T Vogl
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie, Frankfurt am Main
| |
Collapse
|
6
|
Ringe KI, Luetkens JA, Fimmers R, Hammerstingl RM, Layer G, Maurer MH, Nähle CP, Michalik S, Reimer P, Schraml C, Schreyer AG, Stumpp P, Vogl TJ, Wacker FK, Willinek W, Kukuk GM. Characterization of Severe Arterial Phase Respiratory Motion Artifact on Gadoxetate Disodium-Enhanced MRI - Assessment of Interrater Agreement and Reliability. ROFO-FORTSCHR RONTG 2018; 190:341-347. [PMID: 29448290 DOI: 10.1055/s-0044-100727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE To assess the interrater agreement and reliability of experienced abdominal radiologists in the characterization and grading of arterial phase gadoxetate disodium-related respiratory motion artifact on liver MRI. MATERIALS AND METHODS This prospective multicenter study was initiated by the working group for abdominal imaging within the German Roentgen Society (DRG), and approved by the local IRB of each participating center. 11 board-certified radiologists independently reviewed 40 gadoxetate disodium-enhanced liver MRI datasets. Motion artifacts in the arterial phase were assessed on a 5-point scale. Interrater agreement and reliability were calculated using the intraclass correlation coefficient (ICC) and Kendall coefficient of concordance (W), with p < 0.05 deemed significant. RESULTS The ICC for interrater agreement and reliability were 0.983 (CI 0.973 - 0.990) and 0.985 (CI 0.978 - 0.991), respectively (both p < 0.0001), indicating excellent agreement and reliability. Kendall's W for interrater agreement was 0.865. A severe motion artifact, defined as a mean motion score ≥ 4 in the arterial phase was observed in 12 patients. In these specific cases, a motion score ≥ 4 was assigned by all readers in 75 % (n = 9/12 cases). CONCLUSION Differentiation and grading of arterial phase respiratory motion artifact is possible with a high level of inter-/intrarater agreement and interrater reliability, which is crucial for assessing the incidence of this phenomenon in larger multicenter studies. KEY POINTS · Inter- and intrarater agreement for motion artifact scoring is excellent among experienced readers.. · Interrater reliability for motion artifact scoring is excellent among experienced readers.. · Characterization of severe motion artifacts proved feasible in this multicenter study.. CITATION FORMAT · Ringe KI, Luetkens JA, Fimmers R et al. Characterization of Severe Arterial Phase Respiratory Motion Artifact on Gadoxetate Disodium-Enhanced MRI - Assessment of Interrater Agreement and Reliability. Fortschr Röntgenstr 2017; 190: 341 - 347.
Collapse
Affiliation(s)
- Kristina Imeen Ringe
- Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | | | - Rolf Fimmers
- Department of Medical Biometry, Informatics and Epidemiology, University of Bonn, Germany
| | - Renate Maria Hammerstingl
- Department of Diagnostic and Interventional Radiology, Clinic of the Goethe University, Frankfurt, Germany
| | - Günter Layer
- Department of Diagnostic and Interventional Radiology, Ludwigshafen Hospital, Hannover, Germany
| | - Martin H Maurer
- Department of Radiology, University Hospital Bern, Switzerland
| | - Claas Philip Nähle
- Division of Radiology and Nuclear Medicine, Cantonal Hospital St. Gallen, Switzerland
| | - Sabine Michalik
- Department of Radiology, Asklepios Hospital Altona, Hamburg, Germany
| | - Peter Reimer
- Institute of Diagnostic and Interventional Radiology, Hospital Karlsruhe, Germany
| | - Christina Schraml
- Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Germany
| | | | - Patrick Stumpp
- Department of Radiology, University Hospital Leipzig, Germany
| | - Thomas J Vogl
- Department of Diagnostic and Interventional Radiology, Clinic of the Goethe University, Frankfurt, Germany
| | - Frank K Wacker
- Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Winfried Willinek
- Department of Radiology, Hospital of Barmherzige Brüder, Trier, Germany
| | | |
Collapse
|
7
|
Filik J, Ashton AW, Chang PCY, Chater PA, Day SJ, Drakopoulos M, Gerring MW, Hart ML, Magdysyuk OV, Michalik S, Smith A, Tang CC, Terrill NJ, Wharmby MT, Wilhelm H. Processing two-dimensional X-ray diffraction and small-angle scattering data in DAWN 2. J Appl Crystallogr 2017; 50:959-966. [PMID: 28656043 PMCID: PMC5458597 DOI: 10.1107/s1600576717004708] [Citation(s) in RCA: 185] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 03/26/2017] [Indexed: 11/10/2022] Open
Abstract
The Powder Calibration and Processing packages implemented in DAWN 2 provide an automated diffraction-geometry calibration and data processing environment for two-dimensional diffraction experiments. The customizable processing chains permit the execution of data processing steps to convert raw two-dimensional data into meaningful data and diffractograms. The provenance of the processed data is maintained, which guarantees reproducibility and transparency of the data treatment. A software package for the calibration and processing of powder X-ray diffraction and small-angle X-ray scattering data is presented. It provides a multitude of data processing and visualization tools as well as a command-line scripting interface for on-the-fly processing and the incorporation of complex data treatment tasks. Customizable processing chains permit the execution of many data processing steps to convert a single image or a batch of raw two-dimensional data into meaningful data and one-dimensional diffractograms. The processed data files contain the full data provenance of each process applied to the data. The calibration routines can run automatically even for high energies and also for large detector tilt angles. Some of the functionalities are highlighted by specific use cases.
Collapse
Affiliation(s)
- J Filik
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - A W Ashton
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - P C Y Chang
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - P A Chater
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - S J Day
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - M Drakopoulos
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - M W Gerring
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - M L Hart
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - O V Magdysyuk
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - S Michalik
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - A Smith
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - C C Tang
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - N J Terrill
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - M T Wharmby
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - H Wilhelm
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| |
Collapse
|
8
|
Michalik S. Synthesis, spectroscopic investigation, structural characterization, and DFT calculations of [ReX2(N2COPh)(CH3PhCN)(PPh3)2] (X=Cl, Br). J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.669036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [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)
- S. Michalik
- a Department of Inorganic and Coordination Chemistry , Institute of Chemistry, University of Silesia, 9th Szkolna St. , 40-006 Katowice , Poland
| |
Collapse
|
9
|
Michalik S, Małecki J, Kruszynski R, Kozik V, Kusz J, Krompiec M. The synthesis, molecular, crystal, and electronic structures of [ReBr2(O)(OCH3)(PPh3)2]. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.591930] [Citation(s) in RCA: 3] [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: 10/18/2022]
Affiliation(s)
- S. Michalik
- a Department of Inorganic and Coordination Chemistry , Institute of Chemistry, University of Silesia, 9th Szkolna St. , 40-006 Katowice, Poland
| | - J.G. Małecki
- b Department of Crystallography , Institute of Chemistry, University of Silesia, ul. Szkolna 9 , 40-006, Katowice, Poland
| | - R. Kruszynski
- c Department of X-ray Crystallography and Crystal Chemistry , Institute of General and Ecological Chemistry, Technical University of Łódź, 116 Żeromski St. , 90-924 Łódź, Poland
| | - V. Kozik
- d Department of Organic Synthesis Chemistry , Institute of Chemistry, University of Silesia, ul. Szkolna 9 , 40-006 Katowice, Poland
| | - J. Kusz
- e Institute of Physics, University of Silesia, 4th Uniwersytecka St. , 40-006 Katowice
| | - M. Krompiec
- a Department of Inorganic and Coordination Chemistry , Institute of Chemistry, University of Silesia, 9th Szkolna St. , 40-006 Katowice, Poland
| |
Collapse
|
10
|
Michalik S, Bednarcik J, Jóvári P, Honkimäki V, Webb A, Franz H, Fazakas E, Varga LK. Modelling the atomic structure of Al92U8 metallic glass. J Phys Condens Matter 2010; 22:404209. [PMID: 21386570 DOI: 10.1088/0953-8984/22/40/404209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The local atomic structure of the glassy Al(92)U(8) alloy was modelled by the reverse Monte Carlo (RMC) method, fitting x-ray diffraction (XRD) and extended x-ray absorption fine structure (EXAFS) signals. The final structural model was analysed by means of partial pair correlation functions, coordination number distributions and Voronoi tessellation. In our study we found that the most probable atomic separations between Al-Al and U-Al pairs in the glassy Al(92)U(8) alloy are 2.7 Å and 3.1 Å with coordination numbers 11.7 and 17.1, respectively. The Voronoi analysis did not support evidence of the existence of well-defined building blocks directly embedded in the amorphous matrix. The dense-random-packing model seems to be adequate for describing the connection between solvent and solute atoms.
Collapse
Affiliation(s)
- S Michalik
- Institute of Physics, P J Šafárik University in Košice, Park Angelinum 9, 041 54 Košice, Slovakia.
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Michalik S, Machura B, Kruszynski R, Kusz J, Krompiec M. Synthesis, spectroscopic investigation, structural characterization and DFT calculation of the complexes [ReX2(N2COPh)(4-PhPyr)(PPh3)2] (X=Cl,Br). Polyhedron 2010. [DOI: 10.1016/j.poly.2010.06.015] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
12
|
Krompiec S, Penczek R, Krompiec M, Pluta T, Ignasiak H, Kita A, Michalik S, Matlengiewicz M, Filapek M. Transition Metals for Conjugation of Polyunsaturated Acids and their Esters. CURR ORG CHEM 2009. [DOI: 10.2174/138527209788452117] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
13
|
Michalik S, Kruszynski R, Leszczyńska-Sejda K, Kusz J, Krompiec S. Synthesis, spectroscopic investigation, crystal and molecular structure of [ReCl 2(N 2COPh)(C 10H 14N 2)(PPh 3) 2]. J COORD CHEM 2009. [DOI: 10.1080/00958970802546024] [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: 10/21/2022]
Affiliation(s)
- S. Michalik
- a Department of Inorganic and Coordination Chemistry , Institute of Chemistry, University of Silesia , Katowice, Poland
| | - R. Kruszynski
- b Department of X-Ray Crystallography and Crystal Chemistry , Institute of General and Ecological Chemistry, Technical University of Łódź , Łódź, Poland
| | - K. Leszczyńska-Sejda
- c Hydroelectrometallurgy Department , Institute of Non Ferrous Metals , Gliwice, Poland
| | - J. Kusz
- d Institute of Physics, University of Silesia , Katowice, Poland
| | - S. Krompiec
- a Department of Inorganic and Coordination Chemistry , Institute of Chemistry, University of Silesia , Katowice, Poland
| |
Collapse
|
14
|
Affiliation(s)
- S. Michalik
- a Department of Inorganic and Coordination Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna St., 40-006 Katowice, Poland
| | - B. Machura
- a Department of Inorganic and Coordination Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna St., 40-006 Katowice, Poland
| | - R. Kruszynski
- b Department of X-ray Crystallography and Crystal Chemistry , Institute of General and Ecological Chemistry, Lodz University of Technology , 116 Żeromski St., 90-924 Łódź, Poland
| | - J. Kusz
- c Institute of Physics, University of Silesia , 4th Uniwersytecka St., 40-006 Katowice
| |
Collapse
|
15
|
Michalik S, DziĘgielewski JO, Mrzigod J, Kruszynski R. Synthesis, spectroscopic investigation, crystal and molecular structure of [ReBr 2(N 2COPPh)(py)(PPh 3) 2]. J COORD CHEM 2007. [DOI: 10.1080/00958970600915397] [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: 10/24/2022]
Affiliation(s)
- S. Michalik
- a Department of Inorganic and Radiation Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna Street, 40-006, Katowice, Poland
| | - J. O. DziĘgielewski
- a Department of Inorganic and Radiation Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna Street, 40-006, Katowice, Poland
| | - J. Mrzigod
- a Department of Inorganic and Radiation Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna Street, 40-006, Katowice, Poland
| | - R. Kruszynski
- b X-Ray Crystallography Laboratory , Institute of General and Ecological Chemistry, Technical University of Łódź , 116 Żeromski Street, 90-924, Łódź, Poland
| |
Collapse
|
16
|
Affiliation(s)
- S. Michalik
- a Department of Inorganic and Radiation Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna Street, 40-006 Katowice, Poland
| | - J. O. DziĘgielewski
- a Department of Inorganic and Radiation Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna Street, 40-006 Katowice, Poland
| | - R. Kruszynski
- b X-Ray Crystallography Laboratory , Institute of General and Ecological Chemistry, Technical University of Łódź , 116 Żeromski Street, 90-924 Łódź, Poland
| |
Collapse
|
17
|
Solecki J, Solecki J, Solecki J, Michalik S, Michalik S, Michalik S. Studies of 85Sr adsorption on grain fractions of soil. J Radioanal Nucl Chem 2006. [DOI: 10.1007/s10967-006-0115-8] [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: 11/24/2022]
|
18
|
Solecki J, Solecki J, Solecki J, Solecki J, Michalik S, Michalik S, Michalik S, Michalik S. Studies of 85Sr adsorption on grain fractions of soil. J Radioanal Nucl Chem 2006. [DOI: 10.1007/s10967-006-0043-7] [Citation(s) in RCA: 9] [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: 11/29/2022]
|
19
|
DziĘgielewski JO, Michalik S, Kruszynski † R, Bartczak TJ. Synthesis, spectroscopic investigation and molecular structures of [ReBr 2(N 2COPh)(C 3N 2H 4)(PPh 3) 2] and [ReBr 2(N 2COPh)(bpy)(PPh 3)]. J COORD CHEM 2005. [DOI: 10.1080/00958970412331336916] [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: 10/25/2022]
Affiliation(s)
- J. O. DziĘgielewski
- a Department of Inorganic and Radiation Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna St., 40-006 Katowice, Poland
| | - S. Michalik
- a Department of Inorganic and Radiation Chemistry , Institute of Chemistry, University of Silesia , 9th Szkolna St., 40-006 Katowice, Poland
| | - R. Kruszynski †
- b X-Ray Crystallography Laboratory , Institute of General and Ecological Chemistry, Technical University of Łódź , 116 Żeromski St., 90-924 Łódź, Poland
| | - T. J. Bartczak
- b X-Ray Crystallography Laboratory , Institute of General and Ecological Chemistry, Technical University of Łódź , 116 Żeromski St., 90-924 Łódź, Poland
| |
Collapse
|
20
|
Kilic S, Michalik S, Wang Y, Johnson JK, Enick RM, Beckman EJ. Effect of Grafted Lewis Base Groups on the Phase Behavior of Model Poly(dimethyl siloxanes) in CO2. Ind Eng Chem Res 2003. [DOI: 10.1021/ie030288b] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. Kilic
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| | - S. Michalik
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| | - Y. Wang
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| | - J. K. Johnson
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| | - R. M. Enick
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| | - E. J. Beckman
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261
| |
Collapse
|
21
|
|
22
|
Machura B, Dzięgielewski J, Michalik S, Bartczak T, Kruszynski R, Kusz J. Reactivity of [ReOX3(AsPh3)2] (X=Cl, Br) complexes towards gaseous nitric oxide. Polyhedron 2002. [DOI: 10.1016/s0277-5387(02)01254-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
23
|
Abstract
Besides clinical and anamnestic data, image information from CT-image data in the tumour border was used for classification of brain tumours. If the image regions are properly selected a classification rate of 85% is obtained with a hierarchic classifier, although our study is based on only 139 patients.
Collapse
Affiliation(s)
- M Wolf
- Klinik und Poliklinik für Neurologie und Psychiatrie, Bereiches Medizin (Charité), Humboldt-Universität Berlin, Federal Republic of Germany
| | | | | | | | | | | |
Collapse
|