title: Predicting endometrium receptivity with parameters of spiral artery blood flow.
abstract: In order To evaluate whether the parameters of spiral artery blood flow, as measured by transvaginal color Doppler, may be used to assess endometrium receptivity prior to embryo transfer (ET), a retrospective study of 94 infertile women who had undergone ART treatments with different outcomes (pregnant or nonpregnant) was done. Subendometrial blood flow was evaluated. The resistance index (RI), systolic/diastolic ratio (S/D) and pulsatility index (PI) were significantly lower in those who achieved pregnancy as compared with those who did not: 0.62+/-0.04 vs 0.68+/-0.04 (P<0.001), 2.66+/-0.33 vs 3.19+/-0.39 (P<0.01) and 1.15+/-0.17 vs 1.34+/-0.22 (P<0. 05), respectively. Furthermore, when RI>0. 2, PI>1. , and S/D>3. , no pregnancy occurred. These data suggest that the parameters of spiral artery blood flow could be used as a new assay in predicting endometrial receptivity before ET.
authors.affiliation: Department of Ultrasonography, Shenzhen Second People's Hospital, Shenzhen 518035, China.
authors.forename: Xuehao
authors.initials: X
authors.lastname: Gong
authors.forename: Quanshui
authors.initials: Q
authors.lastname: Li
authors.forename: Qingping
authors.initials: Q
authors.lastname: Zhang
authors.forename: Guijin
authors.initials: G
authors.lastname: Zhu
mesh_terms: D000328:Adult; D001158:Arteries / Q000000981:diagnostic imaging; D010064:Embryo Implantation / Q000502:physiology*; D004624:Embryo Transfer; D004717:Endometrium / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000502:physiology*; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007247:Infertility, Female / Q000503:physiopathology; D012039:Regional Blood Flow; D020554:Sperm Injections, Intracytoplasmic; D016896:Treatment Outcome; D018615:Ultrasonography, Doppler, Color