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Chapter 7 spatial resolution imaging was significantly higher compared to first-pass imaging (table 7.3; p < 0.01). No significant difference was found in number of perforator branches between the left and right side of patients (p = 0.31 and p = 0.60 in equilibrium-phase and first-pass imaging respectively). Single best perforator branch Because of the large number of non-diagnostic first-pass acquisitions, a direct comparison between equilibrium-phase and first-pass imaging was possible in only 12 patients (19 DIEP flaps) (figure 7.4). In 8 out of 19 single best perforators, the location in first-pass imaging differed more than 1 cm in any direction as compared to equilibrium-phase imaging and surgery. Figure 7.2 Coronal slices demonstrate the course of perforator branches traversing the rectus muscles. Coronal reformations of equilibrium-phase source images from dorsal (panel A) to ventral (panel D) clearly demonstrate the course of the small perforator branches (asterisks) traversing the rectus muscles. The umbilicus (arrowhead, panel D) is clearly visualized and serves as the reference location for determining the exact point where the perforator branches arise from the muscle. The left side is dominant. 121


5. lay-out phd DEFINITIEF_digitaal2
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