Roland Fischer

ORCID: 0000-0002-4766-1215
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About
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Research Areas
  • Advanced MRI Techniques and Applications
  • Hemoglobinopathies and Related Disorders
  • Iron Metabolism and Disorders
  • Psychedelics and Drug Studies
  • Pain Management and Placebo Effect
  • MRI in cancer diagnosis
  • Cardiovascular Function and Risk Factors
  • Plant and animal studies
  • Fetal and Pediatric Neurological Disorders
  • Cardiac Imaging and Diagnostics
  • Paranormal Experiences and Beliefs
  • Advanced X-ray and CT Imaging
  • Advanced Neuroimaging Techniques and Applications
  • Radiation Dose and Imaging
  • Medical Imaging Techniques and Applications
  • Neurotransmitter Receptor Influence on Behavior
  • Psychotherapy Techniques and Applications
  • Insect and Arachnid Ecology and Behavior
  • Trace Elements in Health
  • Liver Disease Diagnosis and Treatment
  • Biochemical Analysis and Sensing Techniques
  • Neuroscience, Education and Cognitive Function
  • Personality Disorders and Psychopathology
  • Embodied and Extended Cognition
  • Body Composition Measurement Techniques

University Medical Center Hamburg-Eppendorf
2014-2024

Universität Hamburg
2014-2024

UCSF Benioff Children's Hospital
2014-2023

Boston Children's Hospital
2013

Policlinico San Matteo Fondazione
2008

Istituti di Ricovero e Cura a Carattere Scientifico
2008

Istituto di Ematologia di Bologna
2008

University of Bologna
2008

Medica (Italy)
2008

Eppendorf (Germany)
1992-1994

In this age so concerned with travel in outer as well inner-space, it is strange that, while we have detailed charts of the moon, no cartography varieties human experience. order to draft a map inner space, I am ready be your guide and take you on two voyages: one along perceptionhallucination continuum increasing ergotropic (1) arousal, which includes creative, psychotic, ecstatic experiences; another perceptionmeditation trophotropic encompasses hypoaroused states Zazen Yoga samadhi. Along...

10.1126/science.174.4012.897 article EN Science 1971-11-26

Journal Article Age, Sex and Taste Sensitivity Get access Edward V. Glanville, Ph.D., Ph.D. 2Department of Medical Genetics, Cleveland Psychiatric InstituteCleveland, Ohio 441093Supported By National Institutes Health Grants To The Institute, Grs 05251 And 05563 Search for other works by this author on: Oxford Academic PubMed Google Scholar Arnold R. Kaplan, 44109 Roland Fischer, 4Research Division, Department Psychiatry Physiological Chemistry, State University SchoolColumbus, 43210...

10.1093/geronj/19.4.474 article EN Journal of Gerontology 1964-10-01

Purpose We aimed to determine the agreement between quantitative susceptibility mapping (QSM)‐based biomagnetic liver susceptometry (BLS) and confounder‐corrected R2* with superconducting quantum interference device (SQUID)‐based in patients iron overload. Methods Data were acquired from two healthy controls 22 undergoing MRI SQUID‐BLS as part of routine monitoring for Magnetic resonance imaging was performed on a 3T system using three‐dimensional multi‐echo gradient‐echo acquisition. Both...

10.1002/mrm.26358 article EN Magnetic Resonance in Medicine 2016-08-11

Objectives Fat quantification by dual-energy computed tomography (DECT) provides contrast-independent objective results, for example, on hepatic steatosis or muscle quality as parameters of prognostic relevance. To date, fat has only been developed and used source-based DECT techniques fast kVp-switching CT dual-source CT, which require a prospective selection the imaging mode. It was purpose this study to develop material decomposition algorithm in phantoms validate it vivo patient liver...

10.1097/rli.0000000000000858 article EN cc-by-nc-nd Investigative Radiology 2022-02-11

Abstract Objectives Assessment of myocardial strain by feature tracking magnetic resonance imaging (FT-MRI) in human fetuses with and without congenital heart disease (CHD) using cardiac Doppler ultrasound (DUS) gating. Methods A total 43 (gestational age 28–41 weeks) underwent dynamic MRI at 3 T. Cine balanced steady-state free-precession was performed fetal DUS FT-MRI analyzed dedicated post-processing software. Endo- epicardial contours were manually delineated from 4-chamber views,...

10.1007/s00330-023-10551-0 article EN cc-by European Radiology 2024-01-10

To quantify the proportion of fat within skeletal muscle as a measure quality using dual-energy CT (DECT) and to validate this methodology with MRI.Twenty-one patients abdominal contrast-enhanced DECT scans (100 kV/Sn 150 kV) underwent 3-T MRI. The fraction (DECT-FF), determined by material decomposition, HU values on virtual non-contrast-enhanced (VNC) images were measured in 126 regions interest (≥ 6 cm2) posterior paraspinal muscle. For validation, MR-based (MR-FF) was assessed chemical...

10.1007/s00330-021-07820-1 article EN cc-by European Radiology 2021-03-26

To determine the pancreatic iron (R2*) and fat content (FC) in comparison to hepatic cardiac R2* patients with overload disorders like β-thalassemia major (TM), Diamond-Blackfan anemia (DBA) or hereditary hemochromatosis.R2* rates were assessed liver, heart pancreas of 42 TM, 29 subjects other diseases, 10 controls using an ECG-gated breathhold sequence (12 echo time [TE] = 1.3-25.7 ms, readout repetition [TR] 244 ms). Pancreatic FC from TE dependent region interest based signal intensities...

10.1002/jmri.24752 article EN Journal of Magnetic Resonance Imaging 2014-09-19

Aims The aim of this study was to investigate the occurrence myocardial injury and cardiac dysfunction after an endurance race by biomarkers magnetic resonance in triathletes with without fibrosis. Methods results Thirty asymptomatic male (45 ± 10 years) over training hours per week 55 8 ml/kg minute maximal oxygen uptake during exercise testing were studied before (baseline) 2.4 1.1 post-race. Baseline included cine, T1/T2, late gadolinium enhancement (LGE) extracellular volume imaging....

10.1177/2047487319859975 article EN European Journal of Preventive Cardiology 2019-06-26

The Malleus Maleficarum, the standard textbook of medieval witch-hunting published in 1484 (2), already mentions that “an illusion sight and touch can be caused … by summoning to fancy or imagination certain forms ideas latent mind”, continues saying “(the fifth) method delusion devil is working imaginative power, a disturbance humours effecting transmutation perceived senses”. This might first hypothesis ascribing behavioural changes an apparently schizophrenic nature biochemical influences.

10.1192/bjp.103.431.392 article EN Journal of Mental Science 1957-04-01

Thus the mind is not large enough to contain itself: but where can that part of it be which does contain?

10.1192/bjp.120.555.159 article EN The British Journal of Psychiatry 1972-02-01

OUT ON A (PHANTOM) LIMB VARIATIONS THE THEME: STABILITY OF BODY IMAGE AND GOLDEN SECTION And man created God in his own body image. ROLAND FISCHER* Psychodysleptic Drug-inducedInterference with Readaptation to Distortions It is by now well known that wearing prism spectacles results a variety ofperceptual distortions which, however, gradually disappear within period oftime [i, 2, 3], the length ofwhich depends upon subject and type of distortion used. This "perceptual constancy" [4], called...

10.1353/pbm.1969.0026 article EN Perspectives in biology and medicine 1969-12-01

Journal Article Operational Mechanisms of Copulation and Oviposition in Speyeria (Lepidoptera: Nymphalidae) Get access R. A. Arnold, Arnold 2 Department Entomology, Michigan State University, East Lansing 48824. 2Current address: Dept. University California, Berkeley, CA 94720. Search for other works by this author on: Oxford Academic Google Scholar L. Fischer Annals the Entomological Society America, Volume 70, Issue 4, 15 July 1977, Pages 455–468, https://doi.org/10.1093/aesa/70.4.455...

10.1093/aesa/70.4.455 article EN Annals of the Entomological Society of America 1977-07-15

The terminology pertaining to the structure of male genitalia Hymenoptera has been subject much confusion. Several systems, many purely descriptive in nature, have previously set forch. Others were based on various concepts ontogeny genitalia, or comparative morphology adults. investigation reported here began as an attempt synthesize terminolopies and evolve a workable terms megachilid bees. Accordingly, study was conducted myology group with thought that perhaps understanding musculature...

10.4039/ent88657-12 article EN The Canadian Entomologist 1956-12-01
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