18 results
TYPE I & TYPE II ERRORS 

SENSITIVITY & SPECIFICITY = SNOUT & SPIN 
Sensitive Tests that
TYPE I & TYPE II ERRORS ... #Type1 #Type2 #Errors ... #Biostatistics
P-Value Significance - Visualized in number of "heads in a row"

- Jonas Obleser, PhD - https://twitter.com/jonasobleser

#PValues
Significance #heads #CoinFlip ... #Biostatistics
Creutzfeldt-Jakob Disease - Magnetic resonance imaging (MRI) revealed hyperintensity of the cortical gyri of the frontal
resonance imaging (MRI ... sides (Panel B, arrows ... Neuro #Radiology #MRI
Nystagmus from Wernicke’s Encephalopathy - Magnetic resonance imaging of the brain showed T2 hyperintensities involving the
thalami (Panel B, arrows ... Neuro #Wernicke #MRI
Posterior Ankle Impingement (Os Trigonum) Syndrome - MSK Radiology
Imaging Findings:
 • Os trigonum which has marrow
Arrows showing ... • MRI: Posterolateral ... torn ligament on MRI ... Syndrome #clinical #mri
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Epidemiology and Biostatistics ... Affected by random error ... by systematic error ... true Type II (β) error ... #Epidemiology #Biostatistics
Meniscal tear grading. The schematic diagrams on the top depict meniscal tear grades with corresponding sagittal
corresponding sagittal MR ... Red arrows indicate ... radiology #knee #MRI
Focal Periphyseal Edema (FOPE lesion) - MSK Radiology
Imaging Findings:
 • Arrows identifying the characteristic edema-like signal
Imaging Findings: • Arrows ... repeated follow-up MRI ... lesion #clinical #mri
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
mortality in inferior MI ... lead to large errors
Mucoid Degeneration of the ACL
Imaging Findings:
 • T2-hyperintense fluid-signal within the enlarged ACL on both the
of the fibers (arrows ... mucinous signal on MRI ... knee #clinical #mri