Placental ARFI elastography and biometry evaluation in bitches

Autor(es)

Rodrigues Simoes, Ana Paula ^[1] ; Maronezi, Marjury Cristina ^[2] ; Ramirez Uscategui, Ricardo Andres ^[3] ; Kako Rodrigues, Mariana Garcia ^[1] ; Gomes Mariano, Renata Sitta ^[1] ; de Almeida, Vivian Tavares ^[1] ; Correia Santos, Victor Jose ^[1] ; da Silva, Priscila Del Aguila ^[1] ; Russiano Vicente, Wilter Ricardo ^[1] ; Rossi Feliciano, Marcus Antonio ^{[1, 4]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Fac Agr & Vet Sci, Dept Anim Reprod, Jaboticabal, SP - Brazil

^[2] Univ Estadual Paulista, Fac Agr & Vet Sci, Dept Vet Surg, Jaboticabal, SP - Brazil

^[3] Fed Univ Vales Jequitinhonha & Mucuri UFVJM, Inst Agr Sci, Unai, MG - Brazil

^[4] Univ Fed Santa Maria, Dept Large Anim Clin & Surg, Santa Maria, RS - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Animal Reproduction Science; v. 214, MAR 2020.
• Citações Web of Science: 0

Resumo

Placental rigidity and biometry of twelve pregnant bitches were evaluated using B-mode and Acoustic Radiation Force Impulse (ARFI) ultrasonography, performed once daily, from day 15 of gestation until parturition. Specific software (Virtual Touch Tissue Quantification (R) VTTQ and Virtual Touch Tissue Imaging Quantification (R) VTTIQ) were used. Values for results for variables were correlated and regression models related to gestational day were used to make evaluations. Maternal-fetal placental thickness increased to day 63 (P < 0.0001; R-2 = 0.91); maternal placental thickness increased until day 40 (P = 0.0340; R-2 = 0.54); and fetal placental thickness increased to day 50 (P < 0.0001; R-2 = 0.83) of gestation. Shear wave velocity (SWV) of the dorsal (P < 0.0010) was greater than lateral, which in turn was greater (P = 0.020) than the ventral area. The SWV of the dorsal area as determined using VTTQ, decreased from day 21-35 and increased to day 56 of gestation (P = 0.0291; R-2 = 0.4021); lateral SWV decreased from day 24-45 and increased until the time of parturition (P < 0.001; R-2 = 0.6055). The SWV of the dorsal area, as determined using VTTIQ, decreased from day 21-43 and then increased to day 60 of gestation (P = 0.0016; R-2 = 0.5075); and ventral area SWV increased from day 21-23 and decreased until the time of parturition (P < 0.001; R-2 = 0.8055). Placental alterations reflect structural and biochemical gestational adaptations and can become useful techniques for obstetrics. (AU)

• Processo FAPESP: 17/14957-6 - Estudo de novas biotécnicas para reprodução de caninos e pequenos ruminantes
• Beneficiário: Wilter Ricardo Russiano Vicente
• Modalidade de apoio: Auxílio à Pesquisa - Temático