1. Principles of doppler ultrasound -- 2. Venous anatomy -- 3. Indirect non-invasive venous testing -- 4. Practical start-up tips for image optimization and acquisition -- 5. Practical guide to scanning, including the deep, small saphenous vein and great saphenous vein -- 6. Ultrasound performance, interpretation, documentation and reporting, credentialing, and accreditation -- 7. Pre-, intra-, and post-treatment use of duplex ultrasound -- 8. Forms and sample vein maps -- 9. Appendix.