References
- Donald I, Macvicar J, Brown T G. Investigation of abdominal masses by pulsed ultrasound. Lancet 1958; 1: 1188–1195
- Papageorghiou A T, Leslie K. Uterine artery Doppler in the prediction of adverse pregnancy outcome. Curr Opin Obstet Gynecol 2007; 19: 103–109
- Mari G, Hanif F. Intrauterine growth restriction: how to manage and when to deliver. Clin Obstet Gynecol 2007; 50: 497–509
- Abramowicz J S, Sheiner E. Ultrasound of the placenta: a systematic approach. Part II: functional assessment (Doppler). Placenta 2008; 29: 921–929
- Ville Y. From obstetric ultrasound to ultrasonographic obstetrics. Ultrasound Obstet Gynecol 2006; 27: 1–5
- Chen J, Panda R, Realizing dramatic improvements in the efficiency, sensitivity and bandwidth of ultrasound transducers: Philips White Paper 452 962 16081/795 2006; Aug. Available: http://www.healthcare.philips.com/phpwc/main/shared/assets/documents/ultrasound/solutions/technologies/philips-purewave_crystal_technology.pdf via the INTERNET [Accessed 11 Jan 2009]
- Whittle M J, Chitty L S, Neilson J P, Shirley I M, Smith N C, Ville Y, Wyldes M P. Routine ultrasound screening in pregnancy: protocol, standards and training. Supplement to ultrasound screening for fetal abnormalities: report of the RCOG working party. RCOG Press, London 2000
- Whittle M J, Chitty L S, Neilson J P, Shirley I M, Smith N C, Ville Y G, Wyldes M P. Ultrasound screening for fetal abnormalities: report of the RCOG working party. RCOG Press, London 1997
- Chiou S Y, Forsberg F, Fox T B, Needleman L. Comparing differential tissue harmonic imaging with tissue harmonic and fundamental gray scale imaging of the liver. J Ultrasound Med 2007; 26: 1557–1563
- Vlachos I S, Hatziioannou A, Perelas A, Perrea D N. Sonographic assessment of regional adiposity. AJR Am J Roentgenol 2007; 189: 1545–1553
- Tam W H, Sahota D S, Lau T K, Li C Y, Fung T Y. Seasonal variation in pre-eclamptic rate and its association with the ambient temperature and humidity in early pregnancy. Gynecol Obstet Invest 2008; 66: 22–26
- Ko G T, Tang J, Chan J C, Sung R, Wu M M, Wai H P, Chen R. Lower BMI cut-off value to define obesity in Hong Kong Chinese: an analysis based on body fat assessment by bioelectrical impedance. Br J Nutr 2001; 85: 239–242
- Luck C A. Value of routine ultrasound scanning at 19 weeks: a four year study of 8849 deliveries. BMJ 1992; 304: 1474–1478
- Chitty L S, Hunt G H, Moore J, Lobb M O. Effectiveness of routine ultrasonography in detecting fetal structural abnormalities in a low risk population. BMJ 1991; 303: 1165–1169
- Hendler I, Blackwell S C, Treadwell M C, Bujold E, Sokol R J, Sorokin Y. Does advanced ultrasound equipment improve the adequacy of ultrasound visualization of fetal cardiac structures in the obese gravid woman?. Am J Obstet Gynecol 2004; 190: 1616–1619, discussion 1619 – 1620
- DeVore G R, Medearis A L, Bear M B, Horenstein J, Platt L D. Fetal echocardiography: factors that influence imaging of the fetal heart during the second trimester of pregnancy. J Ultrasound Med 1993; 12: 659–663