To find the date of your 13 and 20 week scans please enter your LMP (date of last menstrual period) or EDD (estimated due date) into the calculator below. Clayton Monash Surgical Private Hospital Clayton Road Clayton
Table of contents
- International Scholarly Research Notices
- I-MED Radiology Network l Home
- Ultrasound
- Why would I have a dating scan?
Given variations of even a millimetre or two would represent significant proportional differences in length at these early gestations, we consider it unlikely The Monash Chart would not be valid for spontaneously conceived pregnancies. In this study, we were unable to generate a reference chart that encompassed CRL reference ranges across the whole first trimester.
We attempted modelling a chart incorporating these late first trimester CRL lengths, but we could not be confident that the integrity and high accuracy of the 6—9 week chart we report was maintained.
International Scholarly Research Notices
Nevertheless, we believe our chart is still clinically useful since many spontaneous pregnancies will have the first ultrasound between 6—9 weeks of gestation. Strengths of our study includes the fact we only used measurements obtained from high-resolution transvaginal ultrasounds of CRLs at centres that exclusively perform obstetrics and gynecological ultrasounds. Accurate dating is important since obstetric management throughout pregnancy is strongly based on gestational age. For instance, the first trimester nuchal translucency measurements are most accurate if performed during the 12th week of gestation [ 21 ].
Many units offer an induction of labour at exactly ten to fourteen days after the expected date of delivery, and no later given concerns that stillbirth rates may increase more steeply beyond two weeks after the expected date of delivery [ 22 ]. A Cochrane systematic review concluded that accurate dating indeed reduces the rates of induction of labour for postdates [ 23 ].
At the thresholds of viability, a matter of days can sometimes impact on clinical decisions. Therefore, it is important to be as accurate as possible in determining gestational age. Furthermore, our chart appears valid for both singleton and twin pregnancies.
I-MED Radiology Network l Home
This is an open access article distributed under the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We will be providing unlimited waivers of publication charges for accepted research articles as well as case reports and case series related to COVID Review articles are excluded from this waiver policy.

Sign up here as a reviewer to help fast-track new submissions. Academic Editor: A. Received 03 Apr Accepted 14 May Published 22 Jul Abstract Accurate determination of gestational age underpins good obstetric care. Introduction Accurate dating of gestational age is central to good obstetric care. Table 1. Approaches used by six previous studies to generate CRL reference charts.
Ultrasound
Figure 1. Table 2. Baseline characteristics of study participants the IVF singleton cohort. Verburg et al. Table 3.
- Footer navigation!
- singles matchmaking in Preston Australia!
- city dating sites Cleveland Australia.
- executive search dating Wanneroo Australia.
- Ultrasound | Life Starts Here | Monash IVF.
Table 4. The Monash Chart. Table 5. Mean differences in gestational ages derived from The Monash Chart compared to those predicted by the six existing reference charts. References C. McGalliard and M. Wald, H. Cuckle, J. Densem, A. Kennard, and D. View at: Google Scholar B. Blondel, I. Morin, R. Platt, M. Kramer, R.
Usher, and G. Reuss, M. Hatch, and M. Taipale and V. View at: Google Scholar R. Kalish, H. Thaler, S. Chasen et al.
Why would I have a dating scan?
McLennan and P. Verburg, E. Steegers, M. De Ridder et al. Westerway, A. Davison, and S. View at: Google Scholar F. Hadlock, Y. Shah, D. Kanon, and J. View at: Google Scholar H. Robinson and J. View at: Google Scholar P. Royston and E. Silva, G. Mahairas, A. Schaper, and C. View at: Google Scholar S. MacGregor, R. Tamura, and R. View at: Google Scholar J. Wisser, P. Dirschedl, and S. Sladkevicius, S.
Saltvedt, H. Kublickas, C. Grunewald, and L. Pellentesque eget justo tempor, blandit leo ut, tempus sapien. Curabitur congue mauris non ligula consequat elementum. Aenean fringilla tellus diam. Etiam non dolor et erat mollis venenatis sed eu erat. Curabitur eget lacus at dui iaculis pellentesque fermentum et sapien.
- Share your special moments on Skype!
- internet dating sites Burleigh Waters Australia!
- speed dating south Wodonga Australia.
- Find Out More.
- full hook up Frankston Australia;
In ut lorem ligula. Integer scelerisque tellus auctor tincidunt accumsan. Cras semper risus lacus, ut tristique nunc mollis vitae.
In maximus in mauris at condimentum. Our clinic has been providing services in the Clayton area since , offering numerous options to women and couples.