11 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Differential Diagnosis Algorithm ... by A-a Gradient ... Alveolar • V/Q Mismatch ... Differential #Diagnosis #Algorithm ... #pulmonary #Aa
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Approach to the A-a Gradient ... A-a gradient = ... A-a Gradient ≤ ... and more • V/Q Mismatch ... UnremarkableLab #AA
Lumbar Neural Foraminal Stenosis Grading 
  - Normal - No fat effacement, Keyhole appearance
Foraminal Stenosis Grading ... Spine #Report #Grading ... Diagnosis #Radiology #MSK ... #MRI
Lumbar Central Canal Stenosis Grading 
  - Normal - No CSF effacement 
  -
Canal Stenosis Grading ... Spine #Report #Grading ... Diagnosis #Radiology #MSK ... #MRI
Cervical Central Canal and Neural Foraminal Stenosis Grading

Cervical Central Canal Stenosis Grading
 - Normal - No
Foraminal Stenosis Grading ... Canal Stenosis Grading ... Foraminal Stenosis Grading ... Diagnosis #Radiology #MSK ... #MRI
Lumbar stenosis guide we created to implement consistent radiology reporting across our multi-hospital network. 
Lumbar Central
Canal Stenosis Grading ... Foraminal Stenosis Grading ... Spine #Report #Grading ... Diagnosis #Radiology #MSK ... #MRI
Lynch Syndrome:
 • "CRC + Endometrial/Ovarian + Stomach + Urinary → Lynch Syndrome"
 • Autosomal Dominant,
EPCAM genes → Mismatch ... Microsatellite Instability (MSI
Cushing Syndrome Testing Algorithm
INDICATIONS FOR TESTING:
 • Suspected Cushing syndrome (central obesity, muscle weakness, refractory hypertension)
Testing:
Syndrome Testing Algorithm ... Urine Free by LC-MS ... /MS) • Adrenocorticotropic ... Hormone • MRI ... Syndrome #diagnosis #algorithm
Hydroxyapatite Deposition Disease (HADD) - MSK Radiology
Imaging Findings:
 • Ovoid hypointense structures along the bursal surface
Disease (HADD) - MSK ... • MRI shows globular ... show blooming on gradient-echo ... Disease #clinical #mri ... Radiology #diagnosis #msk
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
Trans-Pulmonary Gradient ... Diastolic Pulmonary Gradient ... mortality in inferior MI ... Ahmed Ghoneem, MD MSc