𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Mathematical Modeling of Fetal Growth: I. Basic Principles

✍ Scribed by Ivar K. Rossavik; Russell L. Deter


Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
437 KB
Volume
12
Category
Article
ISSN
0091-2751

No coin nor oath required. For personal study only.

✦ Synopsis


Quantitative characterization of fetal growth requires the selection of measurement parameters and a growth curve model. For such studies we propose two new parameters (the head cube and the abdominal cube) and a new growth curve model [P = c(t)k+s(t)]. These parameters are relatively insensitive to shape changes and are related to three-dimensional parameters even though they can be calculated from profile diameter measurements. The growth curve model is capable of adequately describing a wide variety of growth curves and its coefficients may be associated with specific biological variables. The properties of these parameters and the growth curve model are discussed.


πŸ“œ SIMILAR VOLUMES


Mathematical modeling of fetal limb grow
✍ Eberhard Merz; Angelika Grüßner; Franz Kern πŸ“‚ Article πŸ“… 1989 πŸ› John Wiley and Sons 🌐 English βš– 444 KB

Using ultrasound measurements of the femur, tibia, humerus, radius (N = 515), and fibula and ulna (N = 385) from normal fetuses between 12 and 40 completed weeks of gestation, growth models were determined for each bone by computer analysis. On the basis of residual analysis, growth of fetal limb bo

Mathematical modeling of fetal growth: V
✍ Ivar K. Rossavik; Russell L. Deter; Nathan Wasserstrum πŸ“‚ Article πŸ“… 1988 πŸ› John Wiley and Sons 🌐 English βš– 486 KB

Fetal growth after 37 weeks menstrual age was investigated by compar- ing ultrasound estimates of fetal weight with corresponding weights of newborns. Using a weight estimation equation with minimal systematic error, evidence was found that fetuses delivered a t term do not increase in weight the la

Mathematical modeling of fetal splenic g
✍ Toshiyuki Hata; Russell L. Deter; Showa Aoki; Ken Makihara; Kohkichi Hata; Manab πŸ“‚ Article πŸ“… 1992 πŸ› John Wiley and Sons 🌐 English βš– 406 KB

## Abstract Growth of the fetal spleen has been monitored by measurements of the maximal length (SL), profile circumference (SC), and profile area (SA) of the spleen, from 20 weeks to 41 weeks, menstrual age. Growth curves for these parameters have been determined using a specially developed growth

Mathematical modeling of fetal growth. I
✍ Dr. Ivar K. Rossavik; Russell L. Deter; Frank P. Hadlock πŸ“‚ Article πŸ“… 1987 πŸ› John Wiley and Sons 🌐 English βš– 405 KB

Growth of the fetal abdomen has been reexamined in a longitudinal study of 32 normally growing fetuses using the abdominal profile area (AA) and the Rossavik growth model. The growth of the fetal abdomen was compared to that of the fetal head. In early pregnancy the growth rate was higher for the f

Mathematical modeling of appendicular bo
✍ James L. Hayward; Shandelle M. Henson; John C. Banks; Sheena L. Lyn πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 202 KB

## Abstract Development of locomotor activity is crucial in tetrapods. In birds, this development leads to different functions for hindlimbs and forelimbs. The emergence of walking and flying as very different complex behavior patterns only weeks after hatching provides an interesting case study in