The use of second-trimester transvaginal sonography to predict placenta previa. Ultrasound Obstet Gynecol 1996 Nov;8(5):337-340.
Vaginal ultrasound for ruling out placenta praevia. Case report. Br J Obstet Gynaecol 1989 Jan;96(1):117-119.
Transvaginal ultrasonography for all placentas that appear to be low-lying or over the internal cervical os. Ultrasound Obstet Gynecol 1997 Jan;9(1):22-24.
Vaginal ultrasound for diagnosis of placenta previa. Am J Obstet Gynecol 1988 Sep;159(3):566-569.
Placenta previa: the evolving role of ultrasound. Ultrasound Obstet Gynecol 2009 Aug;34(2):123-126.
Accuracy and safety of transvaginal sonographic placental localization. Obstet Gynecol 1990 Nov;76(5 Pt 1):759-762.
Transvaginal ultrasound: does it help in the diagnosis of placenta previa? Ultrasound Obstet Gynecol 1992 Jul;2(4):256-260.
The use of iodinated and gadolinium contrast media during pregnancy and lactation.. Eur Radiol 2005 Jun;15(6):1234-1240.
ACR guidance document for safe MR practices: 2007. AJR Am J Roentgenol 2007 Jun;188(6):1447-1474.
Umbilical cord and amniotic membranes. In: McGahan, JP.; Goldberg, BB., editors. Diagnostic ultrasound. A logical approach. 1st ed. Philadelphia: Lippincott-Raven Publishers; 1998. p. 201-229.
A sonographic assessment of different patterns of placenta previa gmigrationh in the third trimester of pregnancy. J Ultrasound Med 2005 Jun;24(6):773-780.
Outcomes of pregnancies with a low-lying placenta diagnosed on second-trimester sonography. J Ultrasound Med 2014 Apr;33(4):691-696.
Transvaginal ultrasonography in predicting placenta previa at delivery: a longitudinal study. Ultrasound Obstet Gynecol 2002 Oct:20(4):356-359.
Association of caesarean delivery for .rst birth with placenta praevia and placental abruption in second pregnancy. BJOG 2007 May;114(5):609-613.
Uncommon type of placentation after previous cesarean deliveries. Obstet Gynecol 2003 Sep;102(3):549-551.
B. Changes of placental site diagnosed by repeated ultrasonic examination. Acta Obstet Gynecol Scand 1977;56(3):161-165.
The relevance of placental location at 20-23 gestational weeks for prediction of placenta previa at delivery: evaluation of 8650 cases. Ultrasound Obstet Gynecol 2001 Jun;17(6):496-501.
Transvaginal ultrasonography at 18-23 weeks in predicting placenta previa at delivery. Ultrasound Obstet Gynecol 1998 Dec;12(6):422-425.
Diagnosis of low-lying placenta: can migration in the third trimester predict outcome? Ultrasound Obstet Gynecol 2001 Aug;18(2):100-102.
Third-trimester transvaginal ultrasonography in placenta previa: does the shape of the lower placental edge predict clinical outcome? Ultrasound Obstet Gynecol 2001 Aug;18(2):103-108.
Cervical length and risk of antepartum bleeding in women with complete placenta previa. Ultrasound Obstet Gynecol 2009 Feb;33(2):209-212.
Consecutive cervical length measurements as a predictor of preterm cesarean section in complete placenta previa. J Clin Ultrasound 2015 Jan;43(1):17-22.
Serial change in cervical length for the prediction of emergency cesarean section in placenta previa. PLoS One 2016 Feb;11(2):e0149036.
Anticipation of uterine bleeding in placenta previa based on vaginal sonographic evaluation. Gynecol Obstet Invest 2002;54(1):37-42.
Expectant management of placenta previa: cost-benefit analysis of outpatient treatment. Am J Obstet Gynecol 1994 May;170(5 Pt 1):1254-1257.
Placenta previa: antepartum conservative management, inpatient versus outpatient. Am J Obstet Gynecol 1994 Jun;170(6):1683-1685.
Placenta previa: does its type affect pregnancy outcome? Am J Perinatol 2003 Oct;20(7):353-360.
Interventions for suspected placenta praevia (Cochrane review). In: The Cochrane Library, Oxford: Update Software; 2004. Issue 2.
Cervical cerclage for the temporary treatment of patients with placenta previa. Obstet Gynecol 1988 Apr;71(4):545-548.
Recent advances in the management of placenta previa. Curr Opin Obstet Gynecol 2004 Dec;16(6):447-451.
Placenta accreta: prospective sonographic diagnosis in patients with placenta previa and prior cesarean section. J Ultrasound Med 1992 Jul;11(7):333-343.
The management of placenta percreta: conservative and operative strategies. Am J Obstet Gynecol 1996 Dec;175(6):1632-1638.
Outcomes of surgical versus conservative management of placenta accreta-percreta: systematic review of literature and case series. Am J Obstet Gynecol 2003 Dec:189(6):S130.
Placenta accreta: a review of current advances in prenatal diagnosis. Placenta 2007;28(7):599-603.
Ultrasound of the placenta: a systematic approach. Part I: Imaging. Placenta 2008 Mar;29(3):225-240.
Abnormal placentation: twenty-year analysis. Am J Obstet Gynecol 2005 May;192(5):1458-1461.
Placenta accretae – summary of 10 years: a survey of 310 cases. Placenta 2002 Feb-Mar;23(2-3):210-214.
Antenatal diagnosis of placenta accreta: a review. Ultrasound Obstet Gynecol 2005 Jul;26(1):89-96.
Role of three-dimensional power Doppler in the antenatal diagnosis of placenta accreta: comparison with gray-scale and color Doppler techniques. Ultrasound Obstet Gynecol 2009 Feb;33(2):193-203.
The value of specific MRI features in the evaluation of suspected placental invasion. Magn Reson Imaging 2007 Jan;25(1):87-93.
Utility of ultrasound and MRI in prenatal diagnosis of placenta accreta: a pilot study. AJR Am J Roentgenol 2011 Dec;197(6):1506-1513.
Placenta accreta: spectrum of US and MR imaging findings. Radiographics 2008 Nov-Dec;28(7):1905-1916.