21 results
CT vs T1 MRI
CT Head:
 - Bones are white
 - Fat is Dark & Scalp fat
CT vs T1 MRI CT ... not apparent T1 MRI ... Dark - Fat is Bright ... #T1 #MRI #comparison ... #neurology #radiology
Effective radiation dose in adults - Following are comparisons of effective radiation dose in adults with
Following are comparisons ... #PatientInfo #Radiology ... Imaging #ChestXRay #CXR ... #CT #Nuclear #Comparison ... #Table #Risks
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
Head CT 4 mSv ... CT 3 mSv 150 CXRs ... #PatientInfo #Radiology ... #CT #Nuclear #Comparison ... #Table #Risks #
X-ray limitations
It’s important to know the limitations of X-rays so we can correctly interpret them in
UltraSound (POCUS) to CT ... or MRI. ... #Diagnosis #Radiology ... ChestXRay #KUB #CXR ... #Limitations #Comparison
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Computed Tomography (CT ... #MRI #POCUS #radiology ... #differential # ... diagnosis #comparison ... #table #appearance
Hilar enlargement
The table summarizes the causes of hilar enlargement.
Normal hili are:
- Normal in position - left
enlargement The table ... left higher than right ... vessels #Diagnosis #Radiology ... #CXR #HilarEnlargement ... #Enlargement #Differential
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... : 'signet ring sign ... Clinical #Diagnosis #Radiology ... Cystic #Cysts #Differential ... #Comparison #Table
Restrictive Cardiomyopathy - Diagnosis and Causes
Clinical: Dyspnea, Exercise Intolerance, ↑ "Right Sided-Symptoms" (ascites, hepatomegaly, ↑↑peripheral edema)
Physical
Intolerance, ↑ "Right ... Physical Exam: ↑JVP ... Echocardiography, Cardiac MRI ... Diagnosis #Causes #differential ... #cardiology #algorithm
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... feeding vessel sign ... cavitation in the right ... #Clinical #Radiology ... #CXR #CTChest #
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
Intravenous Pyelogram (IVP ... #PatientInfo #Radiology ... Imaging #ChestXRay #CXR ... #CT #Nuclear #Comparison ... #Table #Risks #