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Transvaginal Color Doppler Sonographic Findings of Retained Placenta

Other Title
잔류태반의 경질 색도플러 초음파소견
박, 용성; 이, 은주; 서, 정호; 주, 희재
Taehan Ch'oŭmp'a Ŭihakhoe chi, 18(1):39-45, 1999
Journal Title
Taehan Ch'oŭmp'a Ŭihakhoe chi; The journal of the Korean Society of Medical Ultrasound; Journal of Korean Society of Ultrasound in Medicine; 대한초음파의학회지
PURPOSE : The purpose of this study was to evaluate the efficacy of transvaginal color Doppler sonography (TVCDS) in the diagnosis of retained placenta. M ATERIALS AND METHODS : 24 cases pathologically diagnosed retained placenta and underwent TVCDS before treatment were included in this study. The clinical findings, TVCDS findings, and pathological findings were reviewed retrospectively. We evaluated size, location, echo character, and myometrial invasion with gray scale. Presence, grade (1-3), location, peak systolic velocity (PSV), and resistive index (RI) of blood flow in retained placenta were observed. RESULTS : In transvaginal sonography, 21 cases had cystic changes and heterogeneous echo texture in retained placenta. The sizes of retained placenta were 1.4~6.4 cm (mean 3.4 cm), and 17 cases demonstrated myometrial invasion. In TVCDS, 19 cases showed blood flow in retained placenta but 5 cases did not. Most blood flows were grade 2 and located in either periphery or both periphery and center of the mass. PSV were 15.4~99.3 cm/sec (mean 47.33 ±22.75cm/sec) and RI were 0.17~0.43 (mean 0.31 ±0.07). RI of blood flow in retained placenta negatively correlated with the size (p=0.033<0.05). CONCLUSION : Retained placenta demonstrated with TVCDS shows blood flow of high velocity and low impedance. TVCDS may be a useful tool in the diagnosis of retained placenta.
PlacentaabnosmalitiesUltrasoundDopples studies
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Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
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