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uog12403-sup-0001-AppendixS1panel1A.jpgJPEG image144K Appendix S1, Panel 1 (A) Left and (B) right ventricular outflow tract images obtained from the same fetus, showing normal ‘cross-over’ of the great arteries. Both the aortic and pulmonary valves are closed. Note that in this example, although the main pulmonary artery is clearly shown (B), its bifurcation cannot be seen. Image (B) was taken at a more cephalad (superior) level, closer to the aortic arch.
uog12403-sup-0002-AppendixS1panel1B.jpgJPEG image144K Appendix S1, Panel 1 (A) Left and (B) right ventricular outflow tract images obtained from the same fetus, showing normal ‘cross-over’ of the great arteries. Both the aortic and pulmonary valves are closed. Note that in this example, although the main pulmonary artery is clearly shown (B), its bifurcation cannot be seen. Image (B) was taken at a more cephalad (superior) level, closer to the aortic arch.
uog12403-sup-0003-AppendixS1panel2A.tifTIFF image1534K Appendix S1, Panel 2 Sequence of images through a transverse sweep from the level of the right ventricular outflow tract (A, most caudal) to the level of the three vessels and trachea view (D, most cephalad), showing different aspects of the right ventricular outflow tract (RVOT) from that shown in panel 1. Note that at all levels the pulmonary artery, aorta and superior vena cava are shown. In (A) and (B) the RVOT is depicted (pulmonary valve closed in (A), open in (B)). The pulmonary artery bifurcation into right and left branches can also be seen. In (C), the alignment of the three vessels and their relative sizes are shown, as described in the three-vessel view. In (D), the transverse aortic arch as well the ductal arch are imaged simultaneously, as described in the three vessels and trachea view (‘arch view’). Both arches are to the left of the trachea in a typical ‘V’-shaped configuration.
uog12403-sup-0004-AppendixS1panel2B.tifTIFF image1534K Appendix S1, Panel 2 Sequence of images through a transverse sweep from the level of the right ventricular outflow tract (A, most caudal) to the level of the three vessels and trachea view (D, most cephalad), showing different aspects of the right ventricular outflow tract (RVOT) from that shown in panel 1. Note that at all levels the pulmonary artery, aorta and superior vena cava are shown. In (A) and (B) the RVOT is depicted (pulmonary valve closed in (A), open in (B)). The pulmonary artery bifurcation into right and left branches can also be seen. In (C), the alignment of the three vessels and their relative sizes are shown, as described in the three-vessel view. In (D), the transverse aortic arch as well the ductal arch are imaged simultaneously, as described in the three vessels and trachea view (‘arch view’). Both arches are to the left of the trachea in a typical ‘V’-shaped configuration.
uog12403-sup-0005-AppendixS1panel2C.tifTIFF image1534K Appendix S1, Panel 2 Sequence of images through a transverse sweep from the level of the right ventricular outflow tract (A, most caudal) to the level of the three vessels and trachea view (D, most cephalad), showing different aspects of the right ventricular outflow tract (RVOT) from that shown in panel 1. Note that at all levels the pulmonary artery, aorta and superior vena cava are shown. In (A) and (B) the RVOT is depicted (pulmonary valve closed in (A), open in (B)). The pulmonary artery bifurcation into right and left branches can also be seen. In (C), the alignment of the three vessels and their relative sizes are shown, as described in the three-vessel view. In (D), the transverse aortic arch as well the ductal arch are imaged simultaneously, as described in the three vessels and trachea view (‘arch view’). Both arches are to the left of the trachea in a typical ‘V’-shaped configuration.
uog12403-sup-0006-AppendixS1panel2D.tifTIFF image341K Appendix S1, Panel 2 Sequence of images through a transverse sweep from the level of the right ventricular outflow tract (A, most caudal) to the level of the three vessels and trachea view (D, most cephalad), showing different aspects of the right ventricular outflow tract (RVOT) from that shown in panel 1. Note that at all levels the pulmonary artery, aorta and superior vena cava are shown. In (A) and (B) the RVOT is depicted (pulmonary valve closed in (A), open in (B)). The pulmonary artery bifurcation into right and left branches can also be seen. In (C), the alignment of the three vessels and their relative sizes are shown, as described in the three-vessel view. In (D), the transverse aortic arch as well the ductal arch are imaged simultaneously, as described in the three vessels and trachea view (‘arch view’). Both arches are to the left of the trachea in a typical ‘V’-shaped configuration.
uog12403-sup-0007-AppendixS2panel1A-B.tiffTIFF image3123K Appendix S2, Panel 1 Four-chamber view in midgestation, obtained from the same fetus as in all panels of Appendix S2. Images represent diastolic frames with tricuspid and mitral valve open, on B-mode (A) and with corresponding color flow mapping (B). Flow through the atrioventricular valves is represented in red (towards the transducer) and shows similar filling of both ventricular chambers. Velocity scale set at ≈60 cm/s.
uog12403-sup-0008-AppendixS2panel2A-B.tiffTIFF image3121K Appendix S2, Panel 2 Left ventricular outflow tract views from the same fetus as in all panels of Appendix S2, obtained with the sweep technique (A, B) and the rotational technique (C, D) (see text for explanation). Images represent systolic frames (aortic valve is open, mitral valve is closed) on B-mode (A, C) and with corresponding color flow mapping (B, D). Flow through the outflow tract (from left ventricle to aorta) is represented in blue (away from the transducer). Note that the ascending aorta is foreshortened in (A) and (B) compared with (C) and (D). Velocity scale set at ≈60 cm/s.
uog12403-sup-0009-AppendixS2panel2C-D.tiffTIFF image3041K Appendix S2, Panel 2 Left ventricular outflow tract views from the same fetus as in all panels of Appendix S2, obtained with the sweep technique (A, B) and the rotational technique (C, D) (see text for explanation). Images represent systolic frames (aortic valve is open, mitral valve is closed) on B-mode (A, C) and with corresponding color flow mapping (B, D). Flow through the outflow tract (from left ventricle to aorta) is represented in blue (away from the transducer). Note that the ascending aorta is foreshortened in (A) and (B) compared with (C) and (D). Velocity scale set at ≈60 cm/s.
uog12403-sup-0010-AppendixS2panel3A-B.tiffTIFF image3132K Appendix S2, Panel 3 Right ventricular outflow tract view (A, B) and three-vessel view (C, D) from the same fetus as in all panels of Appendix S2. Images represent systolic frames (pulmonary valve is open) on B-mode (A, C) and with corresponding color flow mapping (B, D). Flow through the outflow tract (from right ventricle to pulmonary artery) is represented in blue (away from the transducer). Note similarities between the images which represent separate frames from a continuum sweep towards the upper mediastinum. The bifurcation of the pulmonary artery can be seen in (A) and (B), which were taken at a slightly more caudal plane than were images (C) and (D). Velocity scale set at ≈70 cm/s.
uog12403-sup-0011-AppendixS2panel3C-D.tiffTIFF image3091K Appendix S2, Panel 3 Right ventricular outflow tract view (A, B) and three-vessel view (C, D) from the same fetus as in all panels of Appendix S2. Images represent systolic frames (pulmonary valve is open) on B-mode (A, C) and with corresponding color flow mapping (B, D). Flow through the outflow tract (from right ventricle to pulmonary artery) is represented in blue (away from the transducer). Note similarities between the images which represent separate frames from a continuum sweep towards the upper mediastinum. The bifurcation of the pulmonary artery can be seen in (A) and (B), which were taken at a slightly more caudal plane than were images (C) and (D). Velocity scale set at ≈70 cm/s.
uog12403-sup-0012-AppendixS2panel4A-B.tiffTIFF image3313KAppendix S2, Panel 4 Three vessels and trachea view from the same fetus as in all panels of Appendix S2. Images represent systolic frames on B-mode (A) and with corresponding color flow mapping (B). Note the typical ‘V’-shaped configuration of the ductal and aortic arches, which are to the left of the trachea. Velocity scale set at ≈60 cm/s.

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