References
- Linde DV, Elisabeth EM, Slager MA, et al. Birth prevalence of congenital heart disease worldwide: a systematic review and meta-analysis. J Am College Cardiol. 2011;58:2241–2247.
- Brickner ME, Hillis LD, Lange RA. Congenital heart disease in adults. Second of two parts. N Engl J Med. 2000;342:334–342.
- Saxena A. Congenital Heart Disease in India: a status report. Indian J Pediatr. 2005;72:595–598.
- Chaubal N, Chaubal J. Fetal echocardiography. Indian J Radiol Imaging. 2009;19:60–68.
- Pedregosa JP, Adiego Burgos MB, Ten PM. First trimester foetal echocardiography: state of the problem. Timisoara Med J. 2009;59:173–183.
- Guraya SS. The associations of nuchal translucency and foetal abnormalities; significance and implications. J Clin Diagn Res. 2013;7:936–941.
- Neagos D, Cretu R, Sfetea RC, et al. The importance of screening and prenatal diagnosis in the identification of the numerical chromosomal abnormalities. J Clin Med Maedica (Buchar). 2011;6:179–184.
- Saleem SN. Fetal MRI: an approach to practice: a review. J Adv Res. 2014;5:507–523.
- Mittra AK, Choudhari NK. Development of a low cost foetal heart sound monitoring system for home care application. J Biomed Sci Eng. 2009;2:380–389.
- Chourasia VS, Tiwari AK, Gangopadhyay R. A novel approach for phonocardiographic signals processing to make possible foetal heart rate evaluations. Dig Signal Process, Elsevier. 2014;30:165–183.
- Kovacs F, Kersner N, Kadar K, et al. Computer method for perinatal screening of cardiac murmur using fetal phonocardiography. Comp Biol Med. 2009;39:1130–1136.
- Fodor G, Balogh AT, Hosszu G, et al. Screening for Congenital Heart Diseases by Murmurs Using Telemedical Phonocardiograph. Paper presented at: Proceedings of 34th Annual International IEEE EMBS Conference; 2012 August 28?September 1; San Diego, USA. p. 6100?6103.
- Maeda K, Nakano H. Systolic foetal heart murmur detected in foetal phonocardiography. Occup Med Health Aff. 2013;1:102. doi: 10.4172/2329-6879.1000102.
- Kovacs F, Kadar K, Hosszu G, et al. Screening of Congenital Heart Diseases with Foetal Phonocardiography. Int J Med Health Biomed Bioeng Pharm Eng. 2015;9:497–501.
- Ruffo M, Cesarelli M, Romano M, et al. An algorithm for FHR estimation from foetal phonocardiographic signals. Biomed Signal Process Control. 2010;5:131–141.
- Chen J, Phua K, Song Y. Development of portable phonocardiographic foetal heart rate monitor. Sensor Transducers J. 2008;95:108–127.
- Kovacs F, Torok M, Habermajer I. A rule-based phonocardiographic method for long-term fetal heart rate monitoring. IEEE Trans Biomed Eng. 2000;47:124–130.
- Steinburg PS, Boulesteix AL, Lederer C, et al. What is the normal foetal heart rate? Peer J Online. 2013;1:e82. http://dx.doi.org/10.7717/peerj.82.
- Nazeran H. Wavelet-based segmentation and feature extraction of heart sounds for intelligent PDA-based phonocardiography. Methods Inf Med. 2007;46:135–141.
- Sarbandi RR, Doyle JD, Navidbakhsh M, et al. A colour spectrographic PCG applied to the detection and characterisation of heart murmurs. BioMedical Eng Online. 2011;10:42. doi: 10.1186/1475-925X-10-42.
- Wang P, Kim Y, Ling LH, et al. First Heart Sound Detection For Phonocardiogram Segmentation. Paper presented at: Proceedings of 27th Annual Conference of the IEEE Engineering in Medicine and Biology; 2005 September 1–4; Shanghai, China. p. 5519–23.
- Atbi A, Debbal SM. Segmentation of pathological signals phonocardiogram by using the Shannon energy envelogram. AJCM. 2013;2:1–14.
- Sharma PK, Saha S, Kumari S. Study and design of a Shannon-energy-envelope based phonocardiogram peak spacing analysis for estimating arrhythmic heart-beat. Int J Sci Res Publ. 2014;4:1–5.
- Debbal SM, Bereksi-Reguig F, Tani AM. The fast Fourier transform and the continuous wavelet transform analysis of the phonocardiogram signal. J Mech Med Biol. 2004;4:257–272.