Page 6 - Libro vascular I

9. Duplex assessment of lower limb arterial disease 111
10. Duplex assessment of upper extremity arterial disease 133
11. Duplex assessment of aneurysms 145
12. Anatomy of the lower limb venous system and assessment of venous insufficiency 163
13. Duplex assessment of deep venous thrombosis and upper limb venous disorders 189
14. Graft surveillance and preoperative vein mapping for bypass surgery 207
Appendix A: Decibel scale 225
Appendix B: Sensitivity and specificity 227
Index 229
Acknowledgments vi Preface vii
1. Introduction 1
2. Ultrasound and imaging 5
3. Doppler ultrasound 23
4. Creation of a color flow image 35
5. Blood flow and its appearance on color flow imaging 49
6. Factors that influence the Doppler spectrum 63
7. Optimizing the scan 75
8. Ultrasound assessment of the extracranial cerebral circulation 85
Prelims.qxd 1~9~04 17:01 Page v
v
Contents