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  • noun

Synonyms for Cr

a hard brittle multivalent metallic element

References in periodicals archive ?
Revised criteria for the diagnosis of pregnancy failure with endovaginal ultrasound * Crown-rump length [greater than or equal to] 7 mm without a heartbeat * Mean sac diameter of [greater than or equal to] 25 mm with absence of an embryo * Lack of an embryo [greater than or equal to] 2 weeks after a prior ultrasound demonstrated a gestational sac without a yolk sac * Lack of an embryo [greater than or equal to] 11 days after a prior ultrasound demonstrated a gestational sac with a yolk sac
Given the inherent inter--and intraob-server variation in ultrasound measurements, he and his colleagues favor more conservative criteria for the definitive diagnosis of early pregnancy failure: a crown-rump length cutoff of greater than 7 mm instead of 5 mm, and a mean gestational sac diameter cutoff of more than 25 mm.
Administration of LPS significantly reduced fetal weights and crown-rump lengths and retarded skeletal ossification in anterior and posterior phalanges, and metatarsals.
Fetal crown-rump length: reevaluation of relation to menstrual age (5-18 weeks) with high-resolution real-time US.
The crown-rump length measurements of fetuses of women who screened positive were significantly shorter than fetuses of women for whom a negative screen result was obtained.
We individually weighed each pup and measured its crown-rump length using a graduated ruler.
Adam determined that six baseline biomarkers were significantly associated with miscarriage at the 20th percentile: history of subfertility bleeding score of two on a five-point scale, gestational age of the fetus, fetal crown-rump length of 4 mm, and serum levels of progesterone and hCG (32 nmol/L and 1,500 iU/L, respectively).
The fetus weighed 164 g and had a crown-rump length of 15.
An embryo's crown-rump length and fetal heart rate greater than 100 beats per minute predicted viability at 5-6 weeks post conception in a separate study presented at the annual meeting of the Pacific Coast Reproductive Society in Indian Wells, Calif.
They measured fetal nasal bone length and crown-rump length and recorded maternal characteristics, including self-reported ethnic origin, age, weight, and diabetes.
Level II evidence supports use of crown-rump length in the first trimester, which provides accurate dating and reduces the postdate risk to just 5%, in contrast to the 10%-15% rate with last menstrual period.
On 25 November 1986, a Llano pocket gopher (TCWC 53480) containing three fetuses with crown-rump lengths of about 18 mm was captured 16 mi S of Sabinal, Uvalde County, Texas.