45. Nuclear medicine examinations in gastroenterology.

From greek.doctor
  • Liver scintigraphy
    • 99mTc-Fyton
      • Phagocytosed by Kuppfer cells
    • Focal defect shows the lesion
    • + SPECT/CT
    • Indications
      • Tumor
      • Metastasis
      • Haemangioma
      • Focal nodular hyperplasia
  • Liver blood-pool scintigraphy
    • 99mTc-pyrophosphate-labeled RBCs
      • Accumulates in blood-pools in haemangioma
    • + SPECT/CT
    • Haemangioma is shown by focal increased activity
  • Hepatobiliary scintigraphy/HIDA scan
    • 99mTc-HIDA
      • HIDA = Hepatic IDA
      • Is excreted by the liver into the bile duct
    • Examine liver excretion function and function of gallbladder
    • Indications
      • Bile excretion disorders
      • Gallbladder disorders
      • Bile tree disorders
  • PET/CT in GI tract
    • 18F-FDG
    • Indications
      • Oesophagus carcinoma
      • Colorectal cancer
      • Other GI cancers
  • Oesophagus scintigraphy
    • 99mTc-DTPA
      • Patient eats it with a meal
    • Indications
      • Motility failures of oesophagus or stomach, stenoses