Accuracy of Deep Inferior Epigastric Artery Perforator Mapping - Color Doppler Ultrasound Versus CT Angiography

The main perforators were examined using a LOGIQ S8/V1 CDU device (GE Healthcare, Chalfont St Giles, Great Britain) with a linear transducer of frequency 4-11 MHz. Measured parameters were: 1) calibre of artery and vein; 2) Peak systolic velocity (PSV) of blood in the artery \[cm/s\]; 3) blood velocity in the perforator vein \[cm/s\]; 2) the thickness of the subcutaneous tissue of the lower abdomen measured 4 cm caudal and lateral to the umbilicus. Any additional perforators were marked nor have CTA deducted XY coordinates of marked perforators changed based on the CDU examination. The same sonography surgeon performed all CDU examinations. The time duration of the CDU examination was measured.