Search

Your search keyword '"May, Matthias S."' showing total 21 results
Start Over Author "May, Matthias S." Search Limiters Available in Library Collection
21 results on '"May, Matthias S."'

1. Software-assisted structured reporting and semi-automated TNM classification for NSCLC staging in a multicenter proof of concept study

Author

Heimer, Maurice M., Dikhtyar, Yevgeniy, Hoppe, Boj F., Herr, Felix L., Stüber, Anna Theresa, Burkard, Tanja, Zöller, Emma, Fabritius, Matthias P., Unterrainer, Lena, Adams, Lisa, Thurner, Annette, Kaufmann, David, Trzaska, Timo, Kopp, Markus, Hamer, Okka, Maurer, Katharina, Ristow, Inka, May, Matthias S., Tufman, Amanda, Spiro, Judith, Brendel, Matthias, Ingrisch, Michael, Ricke, Jens, and Cyran, Clemens C.

Published
2024
Full Text
View/download PDF

6. Pulmonary Dysfunction after Pediatric COVID-19

Author

Heiss, Rafael, primary, Tan, Lina, additional, Schmidt, Sandy, additional, Regensburger, Adrian P., additional, Ewert, Franziska, additional, Mammadova, Dilbar, additional, Buehler, Adrian, additional, Vogel-Claussen, Jens, additional, Voskrebenzev, Andreas, additional, Rauh, Manfred, additional, Rompel, Oliver, additional, Nagel, Armin M., additional, Lévy, Simon, additional, Bickelhaupt, Sebastian, additional, May, Matthias S., additional, Uder, Michael, additional, Metzler, Markus, additional, Trollmann, Regina, additional, Woelfle, Joachim, additional, Wagner, Alexandra L., additional, and Knieling, Ferdinand, additional

Published
2023
Full Text
View/download PDF

8. Endovascular stenting of an HVAD™ outflow graft pseudoaneurysm that exerts compression and kinking stenosis on the soft portion of the prosthesis.

Author

Elbayomi, Mohamed, Weyand, Michael, Uder, Michael, May, Matthias S., Steger, Katrin, Roth, Jan‐Peter, and Tandler, Rene

Subjects
HEART assist devices, FALSE aneurysms, STENOSIS, PROSTHETICS, HEART failure patients
Abstract

Key Clinical Message: Complex presentations of MCS patients may necessitate a multidisciplinary approach involving HF cardiologists, CT surgeons, advanced cardiac imagers, and interventional cardiologists in order to define the optimal management strategy. Left ventricle assist devices (LVADs) provide life‐sustaining treatment for patients with terminal heart failure, but their intricacy allows for complications. One complication is LVAD outflow graft obstruction due to the graft's intraluminal thrombus or extraluminal compression. It may be treated endovascularly with stenting. We report an endovascular stenting of an outflow tract in HVAD™ (HeartWare Inc.) due to a pseudoaneurysm causing compression and kinking stenosis. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

15. Influence of Different Antioxidants on X-Ray Induced DNA Double-Strand Breaks (DSBs) Using γ-H2AX Immunofluorescence Microscopy in a Preliminary Study

Author

Brand, Michael, Sommer, Matthias, Ellmann, Stephan, Wuest, Wolfgang, May, Matthias S., Eller, Achim, Vogt, Sabine, Kuefner, Michael A., and Uder, Michael

Subjects
Medizinische Fakultät, ddc:610
Abstract

Background Radiation exposure occurs in X-ray guided interventional procedures or computed tomography (CT) and γ-H2AX-foci are recognized to represent DNA double-strand breaks (DSBs) as a biomarker for radiation induced damage. Antioxidants may reduce the induction of γ-H2AX-foci by binding free radicals. The aim of this study was to establish a dose-effect relationship and a time-effect relationship for the individual antioxidants on DSBs in human blood lymphocytes. Materials and Methods Blood samples from volunteers were irradiated with 10 mGy before and after pre-incubation with different antioxidants (zinc, trolox, lipoic acid, ß-carotene, selenium, vitamin E, vitamin C, N-acetyl-L-cysteine (NAC) and Q 10). Thereby, different pre-incubation times, concentrations and combinations of drugs were evaluated. For assessment of DSBs, lymphocytes were stained against the phosphorylated histone variant γ-H2AX. Results For zinc, trolox and lipoic acid regardless of concentration or pre-incubation time, no significant decrease of γ-H2AX-foci was found. However, ß-carotene (15%), selenium (14%), vitamin E (12%), vitamin C (25%), NAC (43%) and Q 10 (18%) led to a significant reduction of γ-H2AX-foci at a pre-incubation time of 1 hour. The combination of different antioxidants did not have an additive effect. Conclusion Antioxidants administered prior to irradiation demonstrated the potential to reduce γ-H2AXfoci in blood lymphocytes.

Published
2015

18. Myocardial Adaptation to High-Intensity (Interval) Training in Previously Untrained Men With a Longitudinal Cardiovascular Magnetic Resonance Imaging Study (Running Study and Heart Trial)

Author

Scharf, Michael, primary, Schmid, Axel, additional, Kemmler, Wolfgang, additional, von Stengel, Simon, additional, May, Matthias S., additional, Wuest, Wolfgang, additional, Achenbach, Stephan, additional, Uder, Michael, additional, and Lell, Michael M., additional

Published
2015
Full Text
View/download PDF

19. Pulmonary Dysfunction after Pediatric COVID-19

Author

Heiss, Rafael, Tan, Lina, Schmidt, Sandy, Regensburger, Adrian P., Ewert, Franziska, Mammadova, Dilbar, Buehler, Adrian, Vogel-Claussen, Jens, Voskrebenzev, Andreas, Rauh, Manfred, Rompel, Oliver, Nagel, Armin M., Lévy, Simon, Bickelhaupt, Sebastian, May, Matthias S., Uder, Michael, Metzler, Markus, Trollmann, Regina, Woelfle, Joachim, Wagner, Alexandra L., and Knieling, Ferdinand

Abstract

Low-field-strength MRI showed persistent pulmonary dysfunction in children and adolescents who recovered from COVID-19 and those with long COVID.

Published
2022
Full Text
View/download PDF

20. High-Pitch Thoracic CT With Simultaneous Assessment of Coronary Arteries Effect of Heart Rate and Heart Rate Variability on Image Quality and Diagnostic Accuracy

Author

Scharf, Michael, Bink, Ricarda, May, Matthias S., Hentschke, Christian, Achenbach, Stephan, Uder, Michael, and Lell, Michael M.

Subjects
dual-source CT, computed tomography, radiation exposure, coronary CT angiography, coronary artery disease
Abstract

ObjectivesThe aim of this study was to evaluate the mean heart rate and heart rate variability (HRV) required for diagnostic imaging of the coronary arteries simultaneously with thoracic computed tomography for noncardiac purposes, applying a high-pitch spiral image acquisition protocol for computed tomography angiography (CTA) using a dual-source system.BackgroundFor the primary prevention of coronary heart disease, screening methods to identify currently asymptomatic people who are at high risk for developing coronary heart disease are essential. Coronary CTA can rule out coronary artery stenoses with high negative predictive value.MethodsHigh-pitch thoracic computed tomography was performed in 111 consecutive patients (mean age 60.2 ± 11.5 years; range 37 to 81 years) using a dual-source system (2 × 128 0.6-mm sections, 38.4-mm collimation width, 0.28-s rotation time). Data acquisition was prospectively electrocardiographically triggered at 60% of the R-R interval using a pitch of 3.2. Image quality was evaluated using a 3-point scale (1 = excellent, 2 = moderate, 3 = poor).ResultsClose interobserver agreement for image quality scores of 1,998 evaluated coronary segments was found (κ = 0.93). Image quality was of diagnostic value in 828 of 1,739 segments (47.6%). In 29 of 111 patients (26%), diagnostic image quality was observed for all segments. Average heart rate and HRV were significantly (p < 0.001) higher in patients with at least 1 nondiagnostic coronary segment compared with those without. All patients with mean heart rates

Full Text
View/download PDF

21. Effect of Compression Garments on the Development of Edema and Soreness in Delayed-Onset Muscle Soreness (DOMS).

Author

Heiss, Rafael, Hotfiel, Thilo, Kellermann, Marion, May, Matthias S., Wuest, Wolfgang, Janka, Rolf, Nagel, Armin M., Uder, Michael, and Hammon, Matthias

Subjects
*COMPRESSION garments, *DIAGNOSIS of edema, *MYALGIA treatment, *CALF muscle physiology, *ANKLE, *COMPRESSION stockings, *EDEMA, *EXERCISE, *RANGE of motion of joints, *MAGNETIC resonance imaging, *MUSCLE contraction, *CALF muscles, *MYALGIA, *VISUAL analog scale, *TREATMENT effectiveness, *DIAGNOSIS, *THERAPEUTICS
Abstract

Delayed-onset muscle soreness (DOMS), an ultrastructural muscle injury, is one of the most common reasons for impaired muscle performance. The purpose of this study was to investigate the influence of sport compression garments on the development of exercise-induced intramuscular edema in the context of DOMS. DOMS was induced in 15 healthy participants. The participants performed a standardized eccentric exercise of the calf muscles. Magnetic resonance imaging (MRI) was performed at baseline and 60h after exercise (T2-weighted signal intensity and T2 relaxation time was evaluated in each compartment and the intramuscular edema in the medial head of the gastrocnemius muscle was segmented). After the exercise, a conventional compression garment (18-21 mmHg) was placed on one randomized calf for 60h. The level of muscle soreness was evaluated using a visual analogue pain scale. T2-weighted signal intensity, T2 relaxation time and intramuscular edema showed a significant interaction for time with increased signal intensities/intramuscular edema in the medial head of the gastrocnemius muscle at follow-up compared to baseline. No significant main effect for compression or interaction between time and limb occurred. Further, no significant differences in the soleus muscle and the lateral head of the gastrocnemius muscle were noted between limbs or over time. After exercise, there was significantly increased muscle soreness in both lower legs in resting condition and when going downstairs and a decreased range of motion in the ankle joint. No significant difference was observed between the compressed and the noncompressed calf. Our results indicate that wearing conventional compression garments after DOMS has been induced has no significant effect on the development of muscle edema, muscle soreness, range of motion and calf circumference. [ABSTRACT FROM AUTHOR]

Published
2018

Catalog

Books, media, physical & digital resources
See catalog results