56 results
CT vs T1 MRI
CT Head:
 - Bones are white
 - Fat is Dark & Scalp fat
CT vs T1 MRI CT ... not apparent T1 MRI ... Devpriyo Pal @drdevrad ... #CT #T1 #MRI # ... comparison #neurology #radiology
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Computed Tomography (CT ... Resonance Imaging (MRI ... #Contrast #CT # ... MRI #POCUS #radiology ... #differential #
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... • CD4 < 200: PCP ... CXR +/- High res CT ... sputum, PCP DFA ... diagnosis #evaluation #differential
X-ray limitations
It’s important to know the limitations of X-rays so we can correctly interpret them in
Point Of Care UltraSound ... (POCUS) to CT or ... MRI. ... #Diagnosis #Radiology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... toxo IgG • CNS PCR ... multiple lesions Infectious ... Lesions #Brain #differential ... diagnosis #causes #radiology
Vitreous Hemorrhage on Ocular POCUS

Binocular vision loss - think cortical blindness, opt for CT/MRI
Monocular vision loss
Hemorrhage on Ocular POCUS ... blindness, opt for CT ... /MRI Monocular ... problem, opt for POCUS ... #clinical #ultrasound
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... HIV / AIDS - Differential ... Imaging: - MRI ... enhancement on CT ... #differential #
Listeriosis Summary - Listeria Monocytogenes
Pathogen: Listeria Monocytogenes - Gram-positive rod, Aerobic, facultative anaerobe, motile, beta-hemolytic, Non-spore-forming
Risk
Pregnancy • CNS infection ... Gastroenteritis) • PCR ... ) • CSF (CNS Infection ... ) • MRI / CT if
Listeriosis Summary - Listeria Monocytogenes
Pathogen: Listeria Monocytogenes - Gram-positive rod, Aerobic, facultative anaerobe, motile, beta-hemolytic, Non-spore-forming
Risk
Pregnancy • CNS infection ... Gastroenteritis) • PCR ... ) • CSF (CNS Infection ... ) • MRI / CT if
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary infections ... according to CT-scan ... immunofluorescence, PCR ... Pulmonary #Lung #Infections ... ComputedTomography #Differential