Table 2

 Ultrasound equipment and technique used in each neonatal intensive care unit (A–F)

ABCDEF
Not all views were used in all cases.
Ultrasound machineAcuson Aspen, Siemens, Sequoia 512Acuson AspenATL HDI 3000ATL HID 3000ATL HDI 3000Acuson Aspen, ATL HDI 3000
Probe size (MHz)7–8.55–78.57–8.57.5–8.55–7.5
ViewsAnterior, posteriorAnterior, posteriorAnterior, posteriorAnterior, posteriorAnterior, posteriorAnterior, posterior, axial