Relationship of thyroid blood flow to reproductive events in normal Chinese females
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AbstractThe purpose of this study was to investigate the blood flow characteristics in the superior thyroid artery (STA) in normal females of prepubertal, reproductive, and postmenopausal age. The study was performed in 29 prepubertal girls, 27 females of reproductive age, and 26 postmenopausal women. The peak systolic velocity (PSV) and the pulsatility index (PI) of the STA were measured repeatedly during one menstrual cycle in females of reproductive age, and measured once in each prepubertal and postmenopausal subject. Different waveforms were observed in females of prepubertal, reproductive, and postmenopausal age, The PSV of the STA increased progressively in females from prepubertal to postmenopausal phases. The PI of the STA in all of the prepubertal girls was lower than that of adult females in different phases of the menstrual cycle, In adult females, the PI in the follicular phase was significantly higher than those in the ovulatory and luteal phases, In all of the postmenopausal women, the PI was comparable to that in older prepubertal subjects and in adult females during the ovulatory and luteal phases, The results suggest that oestrogen may affect thyroid blood flow during the normal menstrual cycle, Growth and progressive change of arterial structure are suggested to affect the thyroid blood Bow in prepubertal and postmenopausal states. (C) 1999 World Federation for Ultrasound in Medicine & Biology.
All Author(s) ListChan ST, Brook F, Ahuja A, Brown B, Metreweli C
Journal nameUltrasound in Medicine and Biology
Year1999
Month2
Day1
Volume Number25
Issue Number2
PublisherELSEVIER SCIENCE INC
Pages233 - 240
ISSN0301-5629
eISSN1879-291X
LanguagesEnglish-United Kingdom
KeywordsChinese; Doppler waveform; postmenopausal; prepubertal; pulsatility index; reproductive
Web of Science Subject CategoriesAcoustics; ACOUSTICS; Radiology, Nuclear Medicine & Medical Imaging; RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Last updated on 2021-23-02 at 00:56