Correlation of Doppler Pulmonary Artery Parameters With Gestational Age in Normal Fetuses at 20-32 Weeks.

IF 1.2 4区医学 Q3 ACOUSTICS

Journal of Clinical Ultrasound Pub Date : 2025-04-02 DOI:10.1002/jcu.23977

Xiaofeng Zhou, Yan Jiang, Xiaolong Zhang, Dan Xie, Mingsheng Zheng, Nan Ye, Na Shu, Shuqiang Gao

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引用次数: 0

Abstract

Objective: To measure pulmonary artery (PA) diameters and Doppler values in normal fetuses and to analyze their trends and correlations with gestational age (GA).

Methods: We took PA ultrasound measurements of normal fetuses with GAs of 20-32 weeks, including the main pulmonary artery (MPA), right pulmonary artery (RPA), and left pulmonary artery (LPA) inner diameters and MPA Doppler parameters [acceleration time (AT), ejection time (ET), AT/ET ratio, peak systolic velocity (PSV), end-diastolic velocity (EDV), pulsatility index (PI), and resistance index (RI)]. The subjects were divided into early (20-24 weeks), middle (24-28 weeks), and late (28-32 weeks) GA groups.

Results: In total, 336 fetuses with GAs of 21 + 3 weeks to 31 + 2 weeks were included (early, n = 161; middle, n = 105; late, n = 70). The PSV, EDV, AT, ET, and PA diameters correlated positively with the GA. The correlations of the PA diameters were the strongest, and a linear regression model was obtained: MPA diameter (cm) = (-0.286 + 0.005) × GA (days).

Conclusions: The MPA, PI, RI, and AT/ET ratios are relatively stable before the GA of 32 weeks. The MPA, LPA, and RPA diameters increase with the GA.

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来源期刊

Journal of Clinical Ultrasound 医学-核医学

CiteScore

1.90

自引率

0.00%

发文量

248

审稿时长

6 months

期刊介绍： The Journal of Clinical Ultrasound (JCU) is an international journal dedicated to the worldwide dissemination of scientific information on diagnostic and therapeutic applications of medical sonography. The scope of the journal includes--but is not limited to--the following areas: sonography of the gastrointestinal tract, genitourinary tract, vascular system, nervous system, head and neck, chest, breast, musculoskeletal system, and other superficial structures; Doppler applications; obstetric and pediatric applications; and interventional sonography. Studies comparing sonography with other imaging modalities are encouraged, as are studies evaluating the economic impact of sonography. Also within the journal''s scope are innovations and improvements in instrumentation and examination techniques and the use of contrast agents. JCU publishes original research articles, case reports, pictorial essays, technical notes, and letters to the editor. The journal is also dedicated to being an educational resource for its readers, through the publication of review articles and various scientific contributions from members of the editorial board and other world-renowned experts in sonography.