Lesson 1Spleen and renal anatomy: splenic size and attenuation, renal cortex and medulla differentiation, corticomedullary enhancement and common incidental findingsDescribes normal and variant CT anatomy of spleen and kidneys, including size, shape, attenuation, corticomedullary differentiation, enhancement phases, and frequent incidental findings such as cysts, infarcts, and benign masses.
Normal splenic size, shape, and attenuationSplenic enhancement and common variantsRenal cortex and medulla differentiationCorticomedullary enhancement patternsIncidental renal and splenic findingsLesson 2Gallbladder and biliary tree: normal gallbladder appearance, wall thickness thresholds, bile ducts on portal venous phase and gallstones vs sludge appearanceExamines gallbladder and biliary tree appearance on portal venous phase CT, including wall thickness thresholds, lumen contents, bile duct caliber, and distinguishing gallstones, sludge, and acute cholecystitis features.
Normal gallbladder size and positionGallbladder wall thickness and edemaGallstones versus biliary sludge on CTCommon bile duct caliber and variantsCT signs of acute cholecystitisLesson 3CT imaging principles and phases: arterial, portal venous, delayed phases — timing, contrast enhancement patterns and when to use eachExplains contrast bolus dynamics, scan timing, and characteristic enhancement patterns of arterial, portal venous, and delayed phases, with practical protocols and indications for each phase in abdominal pathology assessment.
Contrast bolus tracking and scan timingArterial phase indications and key findingsPortal venous phase indications and findingsDelayed phase uses and washout assessmentMultiphase protocols for liver and pancreasLesson 4Liver anatomy on axial CT: segmental Couinaud landmarks, capsule, ligaments, normal attenuation values and common variants (fatty liver, cirrhosis morphology)Outlines Couinaud segmental anatomy on axial CT, using hepatic veins and portal branches as landmarks, and reviews liver capsule, ligaments, attenuation values, and typical CT features of fatty liver and cirrhotic remodeling.
Couinaud segments on axial CT imagesHepatic veins and portal vein landmarksLiver capsule, ligaments, and fissuresNormal hepatic attenuation and fat contentCT morphology of cirrhosis and nodularityLesson 5Bowel and mesentery on axial CT: bowel wall thickness, enhancement patterns, mesenteric fat stranding, free air and obstruction signsFocuses on bowel and mesentery evaluation on axial CT, including normal wall thickness, enhancement patterns, mesenteric fat changes, detection of free air and fluid, and key imaging signs of obstruction and ischemia.
Normal bowel wall thickness by segmentBowel wall enhancement patternsMesenteric fat stranding and edemaCT signs of obstruction and transition pointDetection of free air and free fluidLesson 6Laboratory correlations for abdominal CT: LFT panels (AST, ALT, ALP, bilirubin), inflammatory markers, tumor markers (CEA, AFP) and how lab abnormalities refine imaging differentialsLinks laboratory data with abdominal CT interpretation, showing how liver function tests, inflammatory markers, and tumor markers refine differential diagnoses, guide lesion characterization, and influence urgency of radiologic reporting.
Liver function tests and CT liver findingsInflammatory markers and infection patternsTumor markers and focal lesion suspicionCorrelating labs with biliary obstructionReporting recommendations based on labsLesson 7Pancreas and peripancreatic structures: pancreatic head, body, tail, pancreatic duct, normal enhancement, and acute pancreatitis CT signsDetails normal pancreatic morphology and enhancement on portal venous phase CT, pancreatic duct anatomy, and peripancreatic spaces, then outlines hallmark CT features and complications of acute pancreatitis and differential considerations.
Pancreatic head, body, and tail landmarksPancreatic duct caliber and variantsNormal pancreatic enhancement patternsCT signs of acute interstitial pancreatitisPeripancreatic collections and necrosisLesson 8Major abdominal vessels and lymph nodes: portal vein, hepatic veins, IVC, aorta, mesenteric vessels appearance and portal hypertension radiologic signsReviews portal venous phase appearance of major abdominal vessels and nodal chains, including normal caliber, enhancement, anatomic variants, and classic CT signs of portal hypertension and venous thrombosis for confident interpretation.
Portal vein course, branches, and enhancementHepatic veins and IVC configuration on CTAbdominal aorta and mesenteric artery anatomyMesenteric and retroperitoneal lymph node stationsCT signs of portal hypertension and varicesLesson 9Focal liver lesions: CT appearance of metastases vs cysts vs hemangiomas on portal venous phase, enhancement patterns, size and multiplicity cluesCovers portal venous phase CT features of common focal liver lesions, contrasting metastases, simple cysts, and hemangiomas by density, margins, enhancement pattern, distribution, and ancillary findings that guide differential diagnosis.
Simple hepatic cyst CT criteriaTypical hemangioma enhancement patternMetastatic liver disease CT appearanceSize, number, and distribution cluesWhen to recommend MRI or follow-up
