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Nuclear Medicine

Nuclear Medicine. Nuclear Medicine Physiological Imaging. Radioactive isotopes which emit gamma rays or other ionizing forms (half life for most is hours to days) Radionuclides are injected intravenously or inhaled where, depending on substance, they concentrate in organ of study

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Nuclear Medicine

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  1. Nuclear Medicine

  2. Nuclear MedicinePhysiological Imaging • Radioactive isotopes which emit gamma rays or other ionizing forms (half life for most is hours to days) • Radionuclides are injected intravenously or inhaled where, depending on substance, they concentrate in organ of study • The emitted gamma rays are then picked up by gamma camera and displayed • Special terms used on nuclear medicine reports • Hot, Photon Rich, Cold, Photon Poor, Photopenic

  3. Nuclear MedicinePhysiological Imaging • Conventional Nuclear Medicine • Emitted gamma rays create image • SPECT (Single Photon Emission Computed Tomography) • Tomographic images of emitted gamma rays • Rotating gamma camera creates 3-D data set • Data set is then manipulated to create volume images (sum of all images in stack), multiplanar thin section images and 3-D volume data sets

  4. Gamma Camera

  5. Bone Scan

  6. Lung Scan Ventilation Perfusion

  7. HIDA Scan Common Duct Gallbladder

  8. CT- PET PET Scan Section CT Scan Section

  9. PET Scanning • Oncology • Function • Metabolism • Perfusion

  10. Positron Emission Tomography • PET (Positron Emission Tomography) • Tomographic images of emitted positrons • Can be used to study metabolic processes • 511 kEv gamma ray Photons emitted simultaneously at 180 degrees to each other • Evaluate location in space • Fusion imaging with CT scanning for precise localization

  11. Nuclear MedicinePhysiological Imaging • Positron Emission Tomography • Radionuclide emits positrons which interact with electrons to eject gamma rays at 180° • Use computer to localize in space Β+ E-

  12. Lung Cancer Mediastinal Metastasis Positron Emission Tomography

  13. Positron Emission Tomography • Lung Cancer • Metastases • Obstructed right ureter

  14. Normal Cardiac Perfusion

  15. Anterior Wall Ischemia

  16. Anterior Wall Ischemia

  17. 13N-Ammonia and 18F-FDGPET-perfusion and viability perfusion viability

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