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Radiology
Gastrointestinal, Liver–spleen, and Hepatobiliary Scintigraphy
Built from Fundamentals of Diagnostic Radiology
What’s inside
6 sections · 63 slides
Overview
- Nuclear medicine studies of the GI tract
- Studies in this topic
Esophageal and gastric motility
Swallowing, reflux, and stomach emptying
- Esophageal transit study
- Normal esophageal transit study
- Separating achalasia and scleroderma
- Gastroesophageal reflux study
- Reflux scintigraphy technique
- Gastroesophageal reflux study
- Gastric emptying study
- Half-emptying time (T½)
- The standard test meal
- Gastric emptying imaging times
- Normal gastric emptying
- Normal limits for gastric retention
- Normal limits for gastric retention
- Delayed gastric emptying (gastroparesis)
- Bowel transit extension
GI bleeding and Meckel scan
Finding the source of intestinal blood loss
- Indications for GI bleeding scintigraphy
- GI bleeding study technique
- Three cardinal findings of active bleeding
- Interpreting the bleeding images
- Upper GI bleed from gastric varices
- Splenic flexure bleed in the colon
- Cecal bleed from angiodysplasia
- Meckel diverticulum
- Meckel scan technique
- Meckel diverticulum
Liver and spleen studies
Colloid imaging and splenic tissue
- Liver/spleen scan basics
- Limits and specific uses
- Liver and spleen size, shape, position
- Normal liver/spleen scan
- Colloid shift in cirrhosis
- Liver/spleen scan in cirrhosis
- Liver/spleen subtraction
- Liver/spleen subtraction from a gallium-67 scan
- Heat-damaged red cell scan
- SPECT/CT of splenosis
Hepatobiliary imaging
Gallbladder, bile ducts, and cholecystitis
- Hepatobiliary tracers
- Normal hepatobiliary scan
- Normal hepatobiliary sequence
- Normal hepatobiliary scan
- Acute cholecystitis hallmark
- Test performance and morphine
- Rim sign
- Acute cholecystitis on hepatobiliary scan
- Pitfalls and false positives
- Acalculous biliary disease
- Gallbladder ejection fraction (GBEF)
- Normal gallbladder ejection fraction
- Low gallbladder ejection fraction
- Other hepatobiliary uses
- Biliary leak after cholecystectomy
- Biliary atresia vs neonatal hepatitis
- Biliary atresia on HIDA scan
Hepatic blood pool scintigraphy
Diagnosing cavernous hemangioma
- Hepatic hemangioma
- Blood pool scan for hemangioma
- Blood flow in hemangioma vs tumor
- Accuracy and limits
- Hepatic hemangioma on blood pool SPECT
- References
- References (continued)
- References (continued)
- Brant and Helms' Fundamentals of Diagnostic Radiology