Study dataset: Real-time ultrasound demonstration of uterine isthmus contractions during pregnancy

This dataset includes transvaginal ultrasound recordings of the uterine cervix in the form of extended video clips (over 15 minutes) from 30 individuals in their second trimester of pregnancy. Each individual also has a fast-motion video clip (at 40x speed) available. The accompanying .csv file provides demographic information about the cohort.
The full analysis of this dataset is published in the American Journal of Obstetrics and Gynecology as an original research paper: https://doi.org/10.1016/j.ajog.2023.07.025

The .csv file consists of the following columns:
- Individual (number)
- SG_eco: completed weeks of pregnancy
- Dies_eco: completed days of the current week of pregnancy
- Paritat: number of previous pregnancies ≥23.0wk
- Cesaries: number of previous cesarean sections
- Edat: maternal age at the time of ultrasound examination (in years)
- Pes: maternal weight at the start of the pregnancy (in kg)
- Talla: maternal height (in cm)
- Contraccio: 0=no, 1=yes (presence of isthmic contraction during the examination, subjectively assessed)
- Orina: volume of urine collected before the ultrasound examination (in ml)

本数据集包含30名孕妇在孕中期子宫颈的经阴道超声录音，以超过15分钟的扩展视频片段形式呈现。每位个体还提供了一段快速播放的视频片段（40倍速）。随附的.csv文件提供了关于该队列的人口统计学信息。该数据集的全面分析已发表在《美国妇产科学杂志》作为原创研究论文：https://doi.org/10.1016/j.ajog.2023.07.025。

.csv文件包括以下列：
- 个人（编号）
- SG_eco：完成孕周数
- Dies_eco：完成本周的孕天数
- Paritat：≥23.0周的既往妊娠数
- Cesaries：既往剖腹产次数
- Edat：超声检查时的母亲年龄（岁）
- Pes：怀孕开始时的母亲体重（公斤）
- Talla：母亲身高（厘米）
- Contraccio：0=否，1=是（检查期间是否存在峡部收缩，主观评估）
- Orina：超声检查前收集的尿液体积（毫升）