Research Topics
| Afina S GlasSummaryAffiliation: Academic Medical Center Country: The Netherlands Publications
| Collaborators
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Detail Information
Publications
Comparison of diagnostic decision rules and structured data collection in assessment of acute ankle injuryAfina S Glas
Department of Clinical Epidemiology and Biostatistics, Academic Medical Center, University of Amsterdam, The Netherlands
CMAJ 166:727-33. 2002..We compared the diagnostic performance of 2 decision rules with the performance of physicians, aided by structured data collection, in ruling out fracture in patients with acute ankle injury...
The diagnostic odds ratio: a single indicator of test performanceAfina S Glas
Department of Clinical Epidemiology and Biostatistics, University of Amsterdam, Academic Medical Center, Post Office Box 22700, 100 DE Amsterdam, The Netherlands
J Clin Epidemiol 56:1129-35. 2003..A disadvantage is the impossibility of weighing the true positive and false positive rate separately. In this article the application of the diagnostic odds ratio in test evaluation is illustrated...
Statistical models for quantifying diagnostic accuracy with multiple lesions per patientAeilko H Zwinderman
Department of Clinical Epidemiology and Biostatistics, J2 203, Amsterdam Medical Center, University of Amsterdam, PO Box 22700, 1100 DE Amsterdam, The Netherlands
Biostatistics 9:513-22. 2008..We applied our tools to simulated data and data of a study assessing diagnostic accuracy of virtual colonography with computed tomography in 200 patients suspected of having one or more polyps...
CT colonography: feasibility of substantial dose reduction--comparison of medium to very low doses in identical patientsRogier E van Gelder
Department of Radiology, Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
Radiology 232:611-20. 2004..Initial observations indicate that it is feasible to reduce the radiation dose required for CT colonography. Further studies are needed, however, to investigate the clinical value of very low-dose CT colonography...
Rectal cancer: local staging and assessment of lymph node involvement with endoluminal US, CT, and MR imaging--a meta-analysisShandra Bipat
Department of Radiology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
Radiology 232:773-83. 2004..To perform a meta-analysis to compare endoluminal ultrasonography (US), computed tomography (CT), and magnetic resonance (MR) imaging in rectal cancer staging...
Radiography in acute ankle injuries: the Ottawa Ankle Rules versus local diagnostic decision rulesA C M Pijnenburg
Department of Surgery, Sint Lucas Andreas Hospital, Academic Medical Center, Amsterdam, The Netherlands
Ann Emerg Med 39:599-604. 2002..We validate the Ottawa Ankle Rules and 2 Dutch ankle rules in distinguishing clinically significant fractures from insignificant fractures and other injuries in patients with a painful ankle presenting to the emergency department...
Bivariate analysis of sensitivity and specificity produces informative summary measures in diagnostic reviewsJohannes B Reitsma
Department of Clinical Epidemiology and Biostatistics, Academic Medical Center, University of Amsterdam, PO Box 22700, 1100 DE Amsterdam, The Netherlands
J Clin Epidemiol 58:982-90. 2005..Studies of diagnostic accuracy most often report pairs of sensitivity and specificity. We demonstrate the advantage of using bivariate meta-regression models to analyze such data...
Three-dimensional display modes for CT colonography: conventional 3D virtual colonoscopy versus unfolded cube projectionFrans M Vos
Department of Radiology, Academic Medical Center Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
Radiology 228:878-85. 2003..605 for conventional 3D display and kappa = 0.692 for unfolded cube display. Consequently, the latter method enhances the 3D endoluminal display with improved time efficiency and higher surface visibility...
CT colonography at different radiation dose levels: feasibility of dose reductionRogier E van Gelder
Department of Radiology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
Radiology 224:25-33. 2002..To investigate the sensitivity and specificity of polyp detection and the image quality of computed tomographic (CT) colonography at different radiation dose levels and to study effective doses reported in literature on CT colonography...
Computed tomography and magnetic resonance imaging in staging of uterine cervical carcinoma: a systematic reviewShandra Bipat
Department of Radiology, G1 230, Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
Gynecol Oncol 91:59-66. 2003..The goal of this article is to systematically review the available evidence on the diagnostic performance of computed tomography (CT) and magnetic resonance imaging (MRI) in staging of cervical carcinoma...
Case-control and two-gate designs in diagnostic accuracy studiesAnne W S Rutjes
Department of Clinical Epidemiology and Biostatistics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Clin Chem 51:1335-41. 2005..Such case-control designs are intuitively appealing, but they have also been criticized for leading to inflated estimates of accuracy...
Sources of variation and bias in studies of diagnostic accuracy: a systematic reviewPenny Whiting
University of York, York, United Kingdom
Ann Intern Med 140:189-202. 2004..Studies of diagnostic accuracy are subject to different sources of bias and variation than studies that evaluate the effectiveness of an intervention. Little is known about the effects of these sources of bias and variation...
Practical implementation of a multiplex PCR for acute respiratory tract infections in childrenPaul Gruteke
Municipal Public Health Laboratory, Municipal Health Service, Amsterdam, The Netherlands
J Clin Microbiol 42:5596-603. 2004..The hospitals continued to use M-PCR for NPA-containing samples found to be RSV negative by DFA. Test implementation is more likely with higher diagnostic yield and a protocol that reflects day-to-day clinical and laboratory operations...
POSSUM predicts decreased overall survival in curative resection for colorectal cancerRebecca P Brosens
Department of Surgery, Zaans Medical Centre, Zaandam, The Netherlands
Dis Colon Rectum 49:825-32. 2006..This study was designed to analyze the relationship between condition of patients with colorectal cancer at operation and long-term overall survival...
