Colour Doppler Ultrasound Assessment of the Normal Neonatal Hip

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Colour Doppler Ultrasound Assessment of the Normal Neonatal Hip Clara L. Ortiz-Neira, MD, Eoghan Laffan, MD, Alan Daneman, MD, Katherine Fong, MD, Andreas Roposch, MD, Arne Ohlsson, MD, Jose Jarrin, RDMS, MD, Chenghua Wang, MSc, John Wedge, MD, Andrea S. Doria, MD, PhD, MSc Canadian Association of Radiologists Journal Volume 60, Issue 2, Pages 79-87 (April 2009) DOI: 10.1016/j.carj.2009.02.009 Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 1 Coronal view of a hip in a 3-day-old neonate. ROI 1: the artery running along the acetabular labrum. ROI 2: the colour pixels in the lateral ascending cervical artery and the 3 branches consistently seen in all participants. ROI 3: colour pixels in the epiphyseal vessels that run in vascular channels. ROI 4: the region of the ligamentum teres artery. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 2 Coronal plane view taken with colour Doppler shows the colour pixels arranged in a radial distribution pattern of the epiphyseal vessels seen in a 10-day-old neonate. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 3 Coronal plane view shows colour pixels in the area of the ligamentum teres corresponding to the ligamentum teres artery. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 4 Colour Doppler and Doppler spectral analysis taken of the lateral ascending cervical artery in the coronal plane, showing a high diastolic flow seen in the lateral cervical ascending artery. RI is 0.60. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 5 Colour Doppler performed in the coronal plane. Doppler spectral analysis of the epiphyseal vessels of a female neonate showing high diastolic flow and a low RI of 0.43. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 6 Colour Doppler performed at the level of the ligamentum teres artery. Doppler spectral analysis shows a high diastolic flow and a low RI of 0.42. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 7 Colour Doppler spectral analysis of the acetabular labrum in the coronal plane in a 2-month-old female neonate. Note the low diastolic flow and the high RI of 0.91. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 8 Colour Doppler in the coronal plane shows the 3 branches from the lateral ascending cervical artery in a 1-month-old male neonate. This finding was seen consistently in all participants. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 9 Colour Doppler performed in a 2-week-old female neonate. Colour pixels (arrow) seen in the artery running along the acetabular labrum. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 10 Colour Doppler pixels seen in the coronal plane in a 1-month-old female neonate. Colour pixels are seen in the cartilaginous femoral epiphyses running in vascular channels. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 11 Drawing summarizing 4 ROIs studied. ROI 1, the artery running along the acetabular labrum; ROI 2, the lateral cervical ascending artery; ROI 3, the epiphyseal vessels; and ROI 4, the artery of the ligamentum teres. Canadian Association of Radiologists Journal 2009 60, 79-87DOI: (10.1016/j.carj.2009.02.009) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions