10 results
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
Computed Tomography (CT ... Barium Enema (Lower GI ... years - Upper GI ... Computed Tomography Angiography ... Nuclear #Comparison #Table
Additional Modalities for Workup of GI Bleed (Other than EGD + Colonoscopy)

Pill endoscopy
 • Able to
for Workup of GI ... Triple-phase CT ... or nephropathy CT ... angiography • ... MatthewHoMD #GI
Algorithm for Diagnosis of Acute Gastrointestinal Bleeding
 • Endoscopy
 • Colonoscopy
 • CT Angiogram
 • Catheter
Algorithm for Diagnosis ... Colonoscopy • CT ... Angiogram • Catheter Angiography ... LouLectures #Algorithm ... Bleeding #GIBleed #GI
Algorithmic Approach to Severe Hematochezia
 - Hematochezia is due to a lower GI bleed ~85% of
Algorithmic Approach ... replaced by newer algorithms ... NG lavage, and CT ... angiography # ... Hematochezia #Severe #Algorithm
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
MRA; abdominal CT ... intra-arterial angiography ... infusion Adrenal CT ... CT or MRI scan of ... Screening #Workup #table
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
• Fluorescein angiography ... halo sign PET/CT ... Ophthalmology #Diagnosis #Algorithm
Lower GI Bleed - Management Algorithm

Suspected lower GI bleeding (LGIB):
 • Hematochezia 
 • Melena +
Lower GI Bleed - ... Management Algorithm ... Suspected lower GI ... bleed) vs Stable ... GIBleed #management #Algorithm
How much radiation is used in paediatric radiology examinations compared to other exposures?

Estimated dose - Days
mSv 1 day Head CT ... months Chest CT ... mSv 20 months Angiography ... mSv 4-11 years CT ... Nuclear #Comparison #Table
Algorithm for the management of patients presenting with acute Lower GI Bleed
High-risk patients
Multiple high-risk clinical features.a
Algorithm for the ... with acute Lower GI ... hernodynamically stable ... GIBleed #LGIB #Algorithm
Immune Checkpoint Inhibitor-Mediated Colitis
Grade of Disease Severity:
 • G1: Increase < 4 BMs/day over baseline; mild
-4 • Consult GI ... Cross-sectional Imaging (MR/CT ... diagnosis #management #algorithm