Werner Vach

Summary

Affiliation: University of Freiburg
Country: Germany

Publications

  1. doi request reprint Calibration of clinical prediction rules does not just assess bias
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, Freiburg University Medical Center, Freiburg, Germany Electronic address
    J Clin Epidemiol 66:1296-301. 2013
  2. pmc Reproducibility of range of motion and muscle strength measurements in patients with hip osteoarthritis - an inter-rater study
    Erik Poulsen
    Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
    BMC Musculoskelet Disord 13:242. 2012
  3. pmc Non-surgical treatment of hip osteoarthritis. Hip school, with or without the addition of manual therapy, in comparison to a minimal control intervention: protocol for a three-armed randomized clinical trial
    Erik Poulsen
    Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark
    BMC Musculoskelet Disord 12:88. 2011
  4. doi request reprint Construction of a Danish CDI short form for language screening at the age of 36 months: methodological considerations and results
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, University Medical Center Freiburg, Germany
    Clin Linguist Phon 24:602-21. 2010
  5. doi request reprint Generating evidence for clinical benefit of PET/CT in diagnosing cancer patients
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, Freiburg University Medical Center, Freiburg, Germany
    J Nucl Med 52:77S-85S. 2011
  6. pmc How to study optimal timing of PET/CT for monitoring of cancer treatment
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, University Medical Center Freiburg Stefan Meier Str 26, D 79104 Freiburg, Germany
    Am J Nucl Med Mol Imaging 1:54-62. 2011
  7. doi request reprint 123I-iodobenzamide SPECT is not an independent predictor of dopaminergic responsiveness in patients with suspected atypical parkinsonian syndromes
    Sabine Hellwig
    Department of Neurology, University Hospital Freiburg, Freiburg, Germany
    J Nucl Med 54:2081-6. 2013
  8. pmc Implementation of shared decision making by physician training to optimise hypertension treatment. Study protocol of a cluster-RCT
    Iris Tinsel
    Department of Medicine, Division of General Practice, University Medical Centre Freiburg, Elsässerstr, 2 m, Freiburg, 79110, Germany
    BMC Cardiovasc Disord 12:73. 2012
  9. doi request reprint [18F]fluoromethylcholine (FCH) positron emission tomography/computed tomography (PET/CT) for lymph node staging of prostate cancer: a prospective study of 210 patients
    Mads H Poulsen
    Department of Urology, Odense University Hospital Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
    BJU Int 110:1666-71. 2012
  10. doi request reprint Three principles to define the success of a diagnostic study could be identified
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, Freiburg University Medical Center, Freiburg, Germany
    J Clin Epidemiol 65:293-300. 2012

Collaborators

Detail Information

Publications10

  1. doi request reprint Calibration of clinical prediction rules does not just assess bias
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, Freiburg University Medical Center, Freiburg, Germany Electronic address
    J Clin Epidemiol 66:1296-301. 2013
    ..In particular, if the rule is based on a linear logistic model, it is often assumed that an overestimation of all coefficients results in a calibration slope less than 1 and an underestimation in a slope larger than 1...
  2. pmc Reproducibility of range of motion and muscle strength measurements in patients with hip osteoarthritis - an inter-rater study
    Erik Poulsen
    Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
    BMC Musculoskelet Disord 13:242. 2012
    ..Furthermore, the reliability of the overall assessment of clinical hip OA was evaluated. Reporting is in accordance with proposed guidelines for the reporting of reliability and agreement studies (GRRAS)...
  3. pmc Non-surgical treatment of hip osteoarthritis. Hip school, with or without the addition of manual therapy, in comparison to a minimal control intervention: protocol for a three-armed randomized clinical trial
    Erik Poulsen
    Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark
    BMC Musculoskelet Disord 12:88. 2011
    ..There is evidence from several trials that exercise therapy is effective. In addition, single trials suggest that patient education in the form of a hip school is a promising intervention and that manual therapy is superior to exercise...
  4. doi request reprint Construction of a Danish CDI short form for language screening at the age of 36 months: methodological considerations and results
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, University Medical Center Freiburg, Germany
    Clin Linguist Phon 24:602-21. 2010
    ..Finally we discuss the choice of the most appropriate age for language screening based on a vocabulary score...
  5. doi request reprint Generating evidence for clinical benefit of PET/CT in diagnosing cancer patients
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, Freiburg University Medical Center, Freiburg, Germany
    J Nucl Med 52:77S-85S. 2011
    ..Only if decision modeling does not allow definitive conclusions should randomized controlled trials be planned...
  6. pmc How to study optimal timing of PET/CT for monitoring of cancer treatment
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, University Medical Center Freiburg Stefan Meier Str 26, D 79104 Freiburg, Germany
    Am J Nucl Med Mol Imaging 1:54-62. 2011
    ..However, the timing of the PET/CT-based evaluation of reduction in viable tumor tissue is a crucial question. We investigated how to plan and analyze studies to optimize this timing...
  7. doi request reprint 123I-iodobenzamide SPECT is not an independent predictor of dopaminergic responsiveness in patients with suspected atypical parkinsonian syndromes
    Sabine Hellwig
    Department of Neurology, University Hospital Freiburg, Freiburg, Germany
    J Nucl Med 54:2081-6. 2013
    ..We investigated whether striatal dopamine D2/D3 receptor (D2R) binding assessed by (123)I-iodobenzamide SPECT is an independent predictor of dopaminergic responsiveness in patients with parkinsonism...
  8. pmc Implementation of shared decision making by physician training to optimise hypertension treatment. Study protocol of a cluster-RCT
    Iris Tinsel
    Department of Medicine, Division of General Practice, University Medical Centre Freiburg, Elsässerstr, 2 m, Freiburg, 79110, Germany
    BMC Cardiovasc Disord 12:73. 2012
    ..Until now there exists little information on the effects of shared decision making trainings for general practitioners on patient participation and on lowering blood pressure in hypertensive patients...
  9. doi request reprint [18F]fluoromethylcholine (FCH) positron emission tomography/computed tomography (PET/CT) for lymph node staging of prostate cancer: a prospective study of 210 patients
    Mads H Poulsen
    Department of Urology, Odense University Hospital Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
    BJU Int 110:1666-71. 2012
    ..However, we did detect several bone metastases with [(18) F]FCH PET/CT that the normal bone scans had missed, and this might be worth pursuing...
  10. doi request reprint Three principles to define the success of a diagnostic study could be identified
    Werner Vach
    Clinical Epidemiology, Institute of Medical Biometry and Medical Informatics, Freiburg University Medical Center, Freiburg, Germany
    J Clin Epidemiol 65:293-300. 2012
    ..Diagnostic studies are typically studies with two endpoints, sensitivity and specificity. To define the success of a diagnostic study, results for these two endpoints have to be combined in an appropriate manner...