FIGURE 25.1. Selective contrast venography demonstrating a dilated, refluxing left ovarian vein communicating with extensive pelvic varicosities. FIGURE 25.2. Balloon occlusion contrast venography demonstrating communication between internal iliac venous tributaries…
CCA, common carotid artery; ICA, internal carotid artery. Intraoperative assessment with duplex scanning also provides a dynamic means to identify and characterize arterial pathology to be repaired. For example, intraoperative…
CLINICAL PRESENTATION With the growing emphasis on “minimally invasive” treatment of cardiovascular diseases, there has been a marked increase in the use of percutaneous diagnostic and therapeutic procedures. The most…
FIGURE 13.1. PVR waveforms. A,Normal waveform shows a sharp systolic upstroke, a narrow peak, and a downstroke that bows toward the baseline with a prominent dicrotic notch. B,With mild arterial…
Preoperative Transcranial Doppler Preoperatively, TCD can be combined with duplex ultrasonography to obtain valuable information for planning CEA. Duplex scanning of the extracranial carotid arteries is discussed in Chapter 8,…
FIGURE 15.1. Prosthetic grafts used for open surgical repair of aneurysms. Grafts may be made of knitted polyester fabric (shown here), woven fabric, or polytetrafluroethylene (ePTFE). (Image provided by MAQUET…
FIGURE 17.1. Color-flow duplex image and velocity spectra of a greater than 70% diameter-reducing stenosis in a femoroperoneal saphenous vein bypass based on peak systolic velocity (PSV) at the stenosis…
FIGURE 28.1. Report of a vein mapping. FIGURE 28.2. Images of a “duplicate” saphenous vein system with branches above and below the fascia in longitudinal (A) and cross-sectional (B) views….
FIGURE 18.1. Peripheral angioplasty surveillance testing protocol and study interpretation criteria. Duplex Testing Protocol The patient should rest for at least 10 minutes prior to testing to ensure a resting…
FIGURE 1.1. When patients develop microemboli that pass down to the plantar and digital arteries, the appearance of the foot may be a useful clue to the underlying process. This…
