Background: Spontaneous preterm delivery, main source of perinatal morbidity and mortality. Forecasting high-probability category for premature primarily at 34 weeks, timely management to avert this gestational problem have thus been health-care challenge. Cervical length estimated by TVS foresee delivery in asymptomatic low-probability women. Methods: Prospective observational study conducted ...

Accuracy improvement is an important research topic in the field of cable-driven parallel robots (CDPRs). One reason for inaccuracies CDPRs are deviations cable lengths. Such can be caused by elongation due to its elasticity or creep behavior. For most common CDPRs, lengths controlled using motor encoders winches, without feedback about actual cables. To address this problem, paper proposes a d...

BACKGROUND Nasal bone assessment has been incorporated into Down syndrome screening in first trimester. Several studies have established the normal reference values for fetal nasal bone length in the first trimester, which were found to be varied by population. However, the study on reliability of nasal bone length measurement was limited with contradictory results. This study aimed to investig...

purpose : to compare laser interferometry (li) and ultrasound a-scan in measurement of axial length ( al ) in eyes with asteroid hyalosis methods : twenty three patients with unilateral moderate to severe asteroid hyalosis determined by b-scan ultrasonography images participated in the study. the al measurements were obtained by li and ultrasound a-scan in both asteroid hyalosis and noninvolved...

A unique length measurement method, called the multiple pulse train interference-based time-of-flight (TOF) method, is proposed and demonstrated for the first time. By taking advantage of both the high-accuracy measurement capability of a pulse train interference method and the arbitrary and absolute length measurement capability of a TOF method, the present method is expected to be useful for ...

In the measurement of the length of preserved intestine after massive resection of the intestine, measurement of the length of intestine as it is at the time of operation may produce a large error when compared to the length of the intestine at normal times. Therefore, attention was paid to the number of arteriae rectae of the intestinal artery and a comparison was made between such number and ...