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…
THE AMERICAN REGISTRY FOR DIAGNOSTIC MEDICAL SONOGRAPHY The ARDMS was incorporated in 1975 as an independent nonprofit organization to provide certification examinations in the various specialties of medical sonography. In…
FIGURE 6.1. Pressure-volume relationships in collapsible tubes. During the “bending” phase of venous distension, large changes in volume are accommodated without significant changes in pressure. As the vein becomes elliptical…
MEASURING ACCURACY WITH CORRELATIVE EXAMINATIONS Specificity, sensitivity, and accuracy are used to describe the results of a diagnostic test in comparison with a standard examination (reference standard).6 These measures express…
Total number 14,999 Isolated CABG 10,658 (71 %) Concomitant CABG 4,341 (29 %) Isolated CABG Initial elective: 8,983 Other than initial elective: 1,675 Off pump: 5,865 Off pump: 880 On…
