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Vasculature Physiologic Disturbances<br />
Blood Flow StudiesHeart And Vessels<br />X-ray plain film for pulmonary vessels only<br />Nuclear Medicine – V/Q Scan<br /...
Pulmonary Vascularity<br />Pulmonary arteries<br />Pulmonary veins<br />Bronchial arteries and veins<br />Interstitium<br ...
Abnormal Pulmonic CirculationIncreased Pulmonary Circulation<br />Conditions causing increased pulmonary flow<br />Pulmona...
Abnormal Pulmonic CirculationIncreased Pulmonary Circulation<br />Pulmonary venous stasis and venous hypertension<br />Lef...
Abnormal Pulmonic Circulation Decreased Pulmonary Circulation<br />Right ventricle outlet stenosis or obstruction<br />Pul...
Pulmonary Emboli<br />PA chest<br />Essentially normal chest findings<br />
Pulmonary Emboli<br />Lung scan<br />Ventilation scan with Xenon or particulate<br />Perfusion with multiple small emboli<...
Pulmonary Emboli<br />Multiple defects in the perfusion examination<br />Overall decreased perfusion in the right lung<br />
Pulmonary Emboli<br />CT with contrast<br /> Large low density filling defect in the right pulmonary artery<br />Exam of c...
Pulmonary Emboli<br />Pulmonary angiogram<br />Catheter in left pulmonary artery from right femoral vein<br />Filling defe...
MRI Angiography<br />Non contrast technique possible<br />Visualize all of the vascular structures<br />
Doppler Ultrasound<br />Doppler principles similar to that of the moving locomotive<br />Determine direction of flow and s...
Popliteal Vein Thrombus<br />Color doppler US<br />Axial image through popliteal<br />Flow in artery (red)<br />No flow in...
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Vascular.pptx - Vasculature Physiologic Disturbances

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  • In this section we are going to talk a little bit about physiologic disturbance of the vascular system and how this might be evaluated using various imaging techniques.
  • Transcript of "Vascular.pptx - Vasculature Physiologic Disturbances"

    1. 1. Vasculature Physiologic Disturbances<br />
    2. 2. Blood Flow StudiesHeart And Vessels<br />X-ray plain film for pulmonary vessels only<br />Nuclear Medicine – V/Q Scan<br />Angiography<br />CT angiography<br />Magnetic resonance angiography<br />Ultrasound (doppler)<br />
    3. 3. Pulmonary Vascularity<br />Pulmonary arteries<br />Pulmonary veins<br />Bronchial arteries and veins<br />Interstitium<br />Lymphatics<br />
    4. 4. Abnormal Pulmonic CirculationIncreased Pulmonary Circulation<br />Conditions causing increased pulmonary flow<br />Pulmonary hypertension.<br />Left-to-right shunt (VSD, ASD, PDA).<br />
    5. 5. Abnormal Pulmonic CirculationIncreased Pulmonary Circulation<br />Pulmonary venous stasis and venous hypertension<br />Left heart dysfunction<br />Left heart failure, etc<br />
    6. 6. Abnormal Pulmonic Circulation Decreased Pulmonary Circulation<br />Right ventricle outlet stenosis or obstruction<br />Pulmonary stenosis<br />Tetralogy of Fallot (VSD, Pulmonary stenosis, Overiding Aorta, RV hypertrophy)<br />Tricuspid valvular atresia, etc<br />Pulmonary artery stenosis or obstruction<br />Pulmonary infarct<br />Pulmonary embolism, etc<br />
    7. 7. Pulmonary Emboli<br />PA chest<br />Essentially normal chest findings<br />
    8. 8. Pulmonary Emboli<br />Lung scan<br />Ventilation scan with Xenon or particulate<br />Perfusion with multiple small emboli<br />
    9. 9. Pulmonary Emboli<br />Multiple defects in the perfusion examination<br />Overall decreased perfusion in the right lung<br />
    10. 10. Pulmonary Emboli<br />CT with contrast<br /> Large low density filling defect in the right pulmonary artery<br />Exam of choice today<br />
    11. 11. Pulmonary Emboli<br />Pulmonary angiogram<br />Catheter in left pulmonary artery from right femoral vein<br />Filling defect (thrombus) in the inferior interlobar branch of the left pulmonary artery<br />
    12. 12. MRI Angiography<br />Non contrast technique possible<br />Visualize all of the vascular structures<br />
    13. 13. Doppler Ultrasound<br />Doppler principles similar to that of the moving locomotive<br />Determine direction of flow and speed by the doppler (frequency) change of moving blood<br />Color assignment determined by direction of flow with respect to the transducer<br />
    14. 14. Popliteal Vein Thrombus<br />Color doppler US<br />Axial image through popliteal<br />Flow in artery (red)<br />No flow in vein<br />Echogenic thrombus in vein (arrowhead)<br />
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