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  1. Artikel: Lack of association of MRI determined subclinical cardiovascular disease with dizziness and vertigo in a cross-sectional population-based study

    Lorbeer, Roberto / Rathmann, Wolfgang

    PLOS ONE, 12(9):e0184858

    2017  

    Abstract: OBJECTIVE: We investigated the association between subclinical cardiovascular diseases assessed by MRI examination and symptoms of dizziness and vertigo in participants of a population-based sample. METHODS: Data from 400 participants (169 women) aged ... ...

    Körperschaft Deutsches Diabetes-Zentrum
    Abstract OBJECTIVE: We investigated the association between subclinical cardiovascular diseases assessed by MRI examination and symptoms of dizziness and vertigo in participants of a population-based sample. METHODS: Data from 400 participants (169 women) aged from 39 to 73 of a cross-sectional MRI sub-study of the “Kooperative Gesundheitsforschung in der Region Augsburg” (KORA) FF4 study from the south of Germany was used. MRI determined subclinical cardiovascular diseases include left and right ventricular structure and function as well as the presence of carotid plaque and carotid wall thickness. Cerebrum diseases include white matter lesions (WML) and cerebral microbleeds (CMB). The main outcomes of dizziness and vertigo were assessed by standardized interview. Logistic regression models were applied and adjusted odds ratios (OR) with 95% confidence intervals (CI) were provided. RESULTS: Lifetime and 12-month prevalence of dizziness and vertigo were 30% (95%CI 26% to 35%) and 21% (95%CI 17% to 26%) respectively in this sample. On multivariable analysis, cardiac and carotid measurements were not associated with dizziness and vertigo excluding orthostatic vertigo (20%, 95CI 16% to 24%). Only in male participants, there was a significant association between WML and the presence of dizziness and vertigo (OR = 2.95, 95%CI 1.08 to 8.07). There was no significant association of CMB with dizziness and vertigo. However, CMB and WML were tending to associate with a higher risk of dizziness and vertigo in the whole sample (CMB: OR = 1.48, 95%CI 0.70; 3.15; WML: OR = 1.71, 95%CI 0.80 to 3.67;), in persons with prediabetes and diabetes (WML: OR = 2.71, 95%CI 0.89 to 8.23) and in men with normal glucose metabolism (CMB: OR = 2.60, 95%CI 0.56 to 12.0; WML: OR = 3.08, 95%CI 0.58 to 16.5). CONCLUSIONS: In this sample of participants without manifest cardiovascular diseases, subclinical left and right ventricular function and carotid structure were consistently not associated with dizziness and vertigo. Subclinical cerebrum measurements, however, tend to increase the risk for dizziness and vertigo, especially in men and in persons with prediabetes or diabetes.
    Schlagwörter Cardiovascular diseases ; Carotid arteries ; Central nervous system ; Glucose metabolism ; Diabetes mellitus ; Magnetic resonance imaging ; Stroke ; Vertigo
    Sprache Englisch
    Dokumenttyp Artikel
    Datenquelle Fachrepositorium Lebenswissenschaften

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  2. Buch ; Online ; Dissertation / Habilitation: Magnetic resonance imaging measures of vascular structure and adipose tissue: relations to cardiovascular risk factors in the general population

    Lorbeer, Roberto [Verfasser]

    2022  

    Verfasserangabe Roberto Lorbeer
    Schlagwörter Medizin, Gesundheit ; Medicine, Health
    Thema/Rubrik (Code) sg610
    Sprache Englisch
    Verlag Universitätsbibliothek der Ludwig-Maximilians-Universität
    Erscheinungsort München
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  3. Artikel: Age- and Sex-Specific Reference Values for Renal Volume and Association with Risk Factors for Chronic Kidney Disease in a General Population-An MRI-Based Study.

    Dabers, Thomas / Sass, Peter / Fechner, Fritz / Weyer, Julian / Völzke, Henry / Mahnken, Andreas Horst / Lorbeer, Roberto / Mensel, Birger / Stracke, Sylvia

    Journal of clinical medicine

    2024  Band 13, Heft 3

    Abstract: Background: Renal volume (RV) is associated with renal function and with a variety of cardiovascular risk factors (CVRFs). We analysed RV using magnetic resonance imaging (MRI) in a large population-based study (Study of Health in Pomerania; SHIP-TREND) ...

    Abstract Background: Renal volume (RV) is associated with renal function and with a variety of cardiovascular risk factors (CVRFs). We analysed RV using magnetic resonance imaging (MRI) in a large population-based study (Study of Health in Pomerania; SHIP-TREND) to find sex- and age-specific reference values for RV and to test the influence of several markers on RV. The main objective is to describe reference values for RV in people from the general population without kidney disease.
    Methods: 1815 participants without kidney disease (930 women) aged 21-81 years were included in our study. Right and left RV with and without body surface area (BSA) indexation were compared among three age groups (22-39 years, 40-59 years, 60-81 years) by median and interquartile range and tested separately in women and men.
    Results: The estimated glomerular filtration rate (eGFR), serum uric acid, and right and left RV were higher in men compared to women (all
    Conclusion: Reference values for RV are different for age groups and sex. For any given age, female kidneys are smaller than male kidneys. RV associates positively with eGFR, but for any chosen eGFR, renal volume in females is lower compared to males. RV decreases with age, but in men showed a U-shaped correlation. This may reflect hyperfiltration and glomerular hypertrophy associated with the presence of CVRF in middle-aged males.
    Sprache Englisch
    Erscheinungsdatum 2024-01-29
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2662592-1
    ISSN 2077-0383
    ISSN 2077-0383
    DOI 10.3390/jcm13030769
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel: Association between Large Arteries Diameter and Heart Function in Subjects Free of Cardiovascular Diseases.

    von Krüchten, Ricarda / Lorbeer, Roberto / Peters, Annette / Bamberg, Fabian / Schlett, Christopher L / Mujaj, Blerim

    Journal of personalized medicine

    2022  Band 12, Heft 6

    Abstract: To investigate the association between Aorta (Ao), pulmonary artery (PA) diameters and the PA/Ao ratio with right (RV) and left ventricle (LV) volumetric properties in subjects free of cardiovascular diseases. In the KORA-MRI study, 339 subjects (mean ... ...

    Abstract To investigate the association between Aorta (Ao), pulmonary artery (PA) diameters and the PA/Ao ratio with right (RV) and left ventricle (LV) volumetric properties in subjects free of cardiovascular diseases. In the KORA-MRI study, 339 subjects (mean age 56.3 ± 9.1 years; 43.7% female) underwent whole-body 3T-MRI. Ao and PA were measured on DIXON sequences. Cvi42 quantified cardiac functional parameters from a SSFP sequence. The relationship between ascending (AAo), and descending aorta (DAo), as well as PA diameters, and RV and LV function were assessed using linear regression models adjusted for age, sex, and cardiovascular risk factors. AAo and DAo diameter were associated with LV end-diastolic volume (β = 4.52,
    Sprache Englisch
    Erscheinungsdatum 2022-05-28
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2662248-8
    ISSN 2075-4426
    ISSN 2075-4426
    DOI 10.3390/jpm12060889
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel: Native myocardial T1 mapping: influence of spatial resolution on quantitative results and reproducibility.

    Dalmer, Antonia / Meinel, Felix G / Böttcher, Benjamin / Manzke, Mathias / Lorbeer, Roberto / Weber, Marc-André / Baeßler, Bettina / Klemenz, Ann-Christin

    Quantitative imaging in medicine and surgery

    2023  Band 14, Heft 1, Seite(n) 20–30

    Abstract: Background: Myocardial mapping techniques can be used to quantitatively assess alterations in myocardial tissue properties. This study aims to evaluate the influence of spatial resolution on quantitative results and reproducibility of native myocardial ... ...

    Abstract Background: Myocardial mapping techniques can be used to quantitatively assess alterations in myocardial tissue properties. This study aims to evaluate the influence of spatial resolution on quantitative results and reproducibility of native myocardial T1 mapping in cardiac magnetic resonance imaging (MRI).
    Methods: In this cross-sectional study with prospective data collection between October 2019 and February 2020, 50 healthy adults underwent two identical cardiac MRI examinations in the radiology department on the same day. T1 mapping was performed using a MOLLI 5(3)3 sequence with higher (1.4 mm × 1.4 mm) and lower (1.9 mm × 1.9 mm) in-plane spatial resolution. Global quantitative results of T1 mapping were compared between high-resolution and low-resolution acquisitions using paired
    Results: There was no significant difference between global quantitative results acquired with high
    Conclusions: Based on our data, we recommend a spatial resolution on the order of 1.9 mm × 1.9 mm for native myocardial T1 mapping using a MOLLI 5(3)3 sequence at 1.5 T particularly in individuals with higher heart rates and women.
    Sprache Englisch
    Erscheinungsdatum 2023-11-14
    Erscheinungsland China
    Dokumenttyp Journal Article
    ZDB-ID 2653586-5
    ISSN 2223-4306 ; 2223-4292
    ISSN (online) 2223-4306
    ISSN 2223-4292
    DOI 10.21037/qims-23-943
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel ; Online: Utility of clinical and MR imaging parameters for prediction and monitoring of response to capecitabine and temozolomide (CAPTEM) therapy in patients with liver metastases of neuroendocrine tumors.

    Ingenerf, Maria / Auernhammer, Christoph / Lorbeer, Roberto / Winkelmann, Michael / Mansournia, Shiwa / Mansour, Nabeel / Hesse, Nina / Heinrich, Kathrin / Ricke, Jens / Berger, Frank / Schmid-Tannwald, Christine

    Radiology and oncology

    2024  

    Abstract: Background: This study explores the predictive and monitoring capabilities of clinical and multiparametric MR parameters in assessing capecitabine and temozolomide (CAPTEM) therapy response in patients with neuroendocrine tumors (NET).: Patients and ... ...

    Abstract Background: This study explores the predictive and monitoring capabilities of clinical and multiparametric MR parameters in assessing capecitabine and temozolomide (CAPTEM) therapy response in patients with neuroendocrine tumors (NET).
    Patients and methods: This retrospective study (n = 44) assessed CAPTEM therapy response in neuroendocrine liver metastases (NELM) patients. Among 33 monitored patients, as a subgroup of the overall study cohort, pretherapeutic and follow-up MRI data (size, apparent diffusion coefficient [ADC] values, and signal intensities), along with clinical parameters (chromogranin A [CgA] and Ki-67%), were analyzed. Progression-free survival (PFS) served as the reference. Responders were defined as those with PFS ≥ 6 months.
    Results: Most patients were male (75%) and had G2 tumors (76%) with a pancreatic origin (84%). Median PFS was 5.7 months; Overall Survival (OS) was 25 months. Non-responders (NR) had higher Ki-67 in primary tumors (16.5
    Conclusions: Survival analysis emphasizes the need for adapted response criteria, involving combined evaluation of CgA, ADC values, and tumor size for monitoring CAPTEM response in hepatic metastasized NETs.
    Sprache Englisch
    Erscheinungsdatum 2024-04-14
    Erscheinungsland Poland
    Dokumenttyp Journal Article
    ZDB-ID 1128829-2
    ISSN 1581-3207 ; 0485-893X ; 1318-2099
    ISSN (online) 1581-3207
    ISSN 0485-893X ; 1318-2099
    DOI 10.2478/raon-2024-0024
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel ; Online: Whole-Body MRI-Derived Adipose Tissue Characterization and Relationship to Pulmonary Function Impairment.

    Krüchten, Ricarda von / Rospleszcz, Susanne / Lorbeer, Roberto / Hasic, Dunja / Peters, Annette / Bamberg, Fabian / Schulz, Holger / Karrasch, Stefan / Schlett, Christopher L

    Tomography (Ann Arbor, Mich.)

    2022  Band 8, Heft 2, Seite(n) 560–569

    Abstract: Background: Specification of adipose tissues by whole-body magnetic resonance imaging (MRI) was performed and related to pulmonary function parameters in a population-based cohort. Methods: 203 study participants underwent whole-body MRI and pulmonary ... ...

    Abstract Background: Specification of adipose tissues by whole-body magnetic resonance imaging (MRI) was performed and related to pulmonary function parameters in a population-based cohort. Methods: 203 study participants underwent whole-body MRI and pulmonary function tests as part of the KORA (Cooperative Health Research in the Augsburg Region) MRI study. Both visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were derived from the T1-Dixon sequence, and hepatic adipose tissue from the proton density fat fraction (PDFFhepatic). Associations between adipose tissue parameters and spirometric indices such as forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1) and Tiffeneau-index (FEV1/FVC) were examined using multivariate linear regression analysis excluding cofounding effects of other clinical parameters. Results: VAT (β = −0.13, p = 0.03) and SAT (β = −0.26, p < 0.001), but not PDFFhepatic were inversely associated with FEV1, while VAT (β = −0.27, p < 0.001), SAT (β = −0.41, p < 0.001), and PDFFhepatic (β = −0.17, p = 0.002) were inversely associated with FVC. PDFFhepatic was directly associated with the Tiffeneau index (β = 2.46, p < 0.001). Conclusions: In the adjusted linear regression model, VAT was inversely associated with all measured spirometric parameters, while PDFFhepatic revealed the strongest association with the Tiffeneau index. Non-invasive adipose tissue quantification measurements might serve as novel biomarkers for respiratory impairment.
    Mesh-Begriff(e) Adipose Tissue/diagnostic imaging ; Humans ; Intra-Abdominal Fat/diagnostic imaging ; Magnetic Resonance Imaging/methods ; Subcutaneous Fat ; Whole Body Imaging
    Sprache Englisch
    Erscheinungsdatum 2022-02-27
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2379-139X
    ISSN (online) 2379-139X
    DOI 10.3390/tomography8020046
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Buch ; Online ; Dissertation / Habilitation: Endocrine-metabolic markers and subclinical cardiovascular disorders

    Lorbeer, Roberto [Verfasser]

    2012  

    Verfasserangabe Roberto Lorbeer
    Schlagwörter Medizin, Gesundheit ; Medicine, Health
    Thema/Rubrik (Code) sg610
    Sprache Englisch
    Verlag Universitätsbibliothek Greifswald
    Erscheinungsort Greifswald
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  9. Artikel ; Online: Adipose tissue is associated with kidney function parameters.

    Mueller-Peltzer, Katharina / von Krüchten, Ricarda / Lorbeer, Roberto / Rospleszcz, Susanne / Schulz, Holger / Peters, Annette / Bamberg, Fabian / Schlett, Christopher L / Mujaj, Blerim

    Scientific reports

    2023  Band 13, Heft 1, Seite(n) 9151

    Abstract: Obesity is characterized by the accumulation of adipose tissue in different body compartments. Whether adipose tissue directly affects kidney function is still unknown. We aimed to investigate the role of the adipose tissue and circulating creatinine, ... ...

    Abstract Obesity is characterized by the accumulation of adipose tissue in different body compartments. Whether adipose tissue directly affects kidney function is still unknown. We aimed to investigate the role of the adipose tissue and circulating creatinine, cystatin C and kidney function in subjects free of cardio-renal diseases. In the KORA-MRI population-based study, 377 subjects (mean age 56.2 ± 9.2 years; 41.6% female) underwent whole-body 3T-MRI examination. Adipose tissue defined as visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were quantified from T1-DIXON sequence using a semi-automatic algorithm. Serum creatinine and cystatin C were measured using standard laboratory and estimated glomerular filtration rate (e-GFR) was performed based on creatinine (e-GFR
    Mesh-Begriff(e) Humans ; Female ; Middle Aged ; Aged ; Male ; Creatinine ; Cystatin C ; Risk Factors ; Glomerular Filtration Rate ; Obesity ; Subcutaneous Fat/diagnostic imaging ; Kidney/diagnostic imaging
    Chemische Substanzen Creatinine (AYI8EX34EU) ; Cystatin C
    Sprache Englisch
    Erscheinungsdatum 2023-06-06
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-36390-z
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel: Association between dietary fat intake and MRI-determined visceral, subcutaneous, or hepatic fat in men and women from the general population

    Meisinger, Christa / Rospleszcz, Susanne / Wintermeyer, Elke / Lorbeer, Roberto / Thorand, Barbara / Bamberg, Fabian / Peters, Annette / Schlett, Christopher / Linseisen, Jakob

    Proceedings of the Nutrition Society. 2020, v. 79, no. OCE2

    2020  

    Abstract: An increase in dietary fat intake - at the expense of dietary carbohydrate intake - may play an important role in the accumulation of adipose tissue at different sites and liver fat accumulation. Thus, the present study investigated the isocaloric ... ...

    Abstract An increase in dietary fat intake - at the expense of dietary carbohydrate intake - may play an important role in the accumulation of adipose tissue at different sites and liver fat accumulation. Thus, the present study investigated the isocaloric substitution of dietary carbohydrates with fat, and its cross-sectional association with visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), and hepatic fat content as determined by MRI. Data from 283 participants (mean age 56.1 ± 9.0 years) from the KORA FF4 study study who underwent whole-body MRI were included. VAT, SAT, and total body fat were quantified by a volume-interpolated VIBE-T1w-Dixon MR sequence. Hepatic fat content was determined as the proton density fat-fraction (PDFF) derived from multiecho-T1w MR sequence. Habitual dietary intake was estimated by combining the information provided by repeated 24-h food lists and a food frequency questionnaire. Cross-sectional associations were analyzed using linear regressions. Carbohydrate intake (in % of total energy intake (E%)) correlated significantly inversely with VAT (r = -0.34) and hepatic fat (r = -0,30), while fat intake (E%) correlated positively with hepatic fat content (r = 0.16). Replacing total carbohydrates with an isocaloric amount of total fat was significantly positively associated with VAT and hepatic fat, while there was no significant association with SAT. The multivariable adjusted β-coefficient for replacing 5 E% carbohydrates with total fat was 0.39 (95% CI: 0.02, 0.76) for VAT. An increase in total fat intake by 5% of total energy was associated with an increase in liver fat content by 24%. Dietary fiber intake was significantly inversely associated with VAT and hepatic lipid content. In middle-aged adults, substitution of carbohydrates with total fat was associated with a higher volume of VAT and an increase of hepatic fat, while whole-grain associated carbohydrates show inverse associations. If reproduced in prospective studies, such findings would strongly argue for limiting dietary fat intake.
    Schlagwörter adipose tissue ; body fat ; carbohydrate intake ; dietary carbohydrate ; dietary fiber ; energy intake ; fat intake ; food frequency questionnaires ; food intake ; lipid content ; liver ; whole grain foods
    Sprache Englisch
    Erscheinungsort Cambridge University Press
    Dokumenttyp Artikel
    Anmerkung NAL-AP-2-clean
    ZDB-ID 391142-1
    ISSN 1475-2719 ; 0029-6651
    ISSN (online) 1475-2719
    ISSN 0029-6651
    DOI 10.1017/S0029665120006035
    Datenquelle NAL Katalog (AGRICOLA)

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