Role for contrast-enhanced ultrasound in assessing complications after kidney transplant

Figure 3 Renal infarction occurring 4 d after cadaveric kidney transplantation in a 53-year-old patient with early renal graft dysfunction. A and B: Grayscale ultrasound found an area of patchy echotexture (arrows in A) showing absent perfusion on contrast-enhanced ultrasound pulse inversion mode (arrows in B); C: Of note, contrast administration enhanced color signal, thus making this area clearly visible even with this technique; D: Infarction reasonably occurred in the blue-marked area in the pre-transplant image of the graft. This area was served by a small polar artery for which anastomosis was impossible.