Showing 5 results for Color Doppler Ultrasonography
Sedigheh Ayati, Leila Pourali, Masoud Pezeshkirad, Farokh Seilanian Toosi, Sirous Nekooei, Mohammad Taghi Shakeri, Mansoureh Sadat Golmohammadi,
Volume 15, Issue 4 (6-2017)
Abstract
Background: Placenta adhesive disorder (PAD) is one of the most common causes of postpartum hemorrhage and peripartum hysterectomy. The main risk factors are placenta previa and prior uterine surgery such as cesarean section. Diagnosis of placenta adhesive disorders can lead to a decrease of maternal mortality and morbidities.
Objective: The purpose of this study was to compare the accuracy of color Doppler ultrasonography and magnetic resonance imaging (MRI) in the diagnosis of PADs.
Materials and Methods:In this is cross-sectional study, Eighty-two pregnant women who were high risk for PAD underwent color Doppler ultrasound and MRI after 18 weeks of gestation. The sonographic and MRI findings were compared with the final pathologic or clinical findings. P<0.05 was considered statistically significant.
Results: Mean maternal age was 31.42±4.2 years. The average gravidity was third pregnancy. 46% of patients had placenta previa. The history of the previous cesarean section was seen in 79 cases (96%). The diagnosis of placenta adhesive disorder was found in 17 cases (21%). Doppler sonography sensitivity was 87% and MRI sensitivity was 76% (p=0.37). Doppler sonography specificity was 63% and MRI specificity was 83% (p=0.01).
Conclusion: Women with high-risk factors for PAD should undergo Doppler ultrasonography at first. When results on Doppler sonography are equivocal for PAD, MRI can be performed due to its high specificity.
Firoozeh Ahmadi, Somayeh Moukhah,
Volume 16, Issue 2 (2-2018)
Abstract
Background: Uterine arteriovenous malformation (UAVM) is a rare vascular condition in reproductive age presented mostly with bleeding. Although this malformation is infrequent, it is potentially life-threatening. Transvaginal Doppler ultrasonography is a widely available, noninvasive and excellent diagnostic method.
Case: The case is a 30-yr-old woman with a history of eight-yr infertility.following intrauterine insemination treatment, she had a molar pregnancy. Despite methotrexate treatment, there was persistent vaginal bleeding. Assessment of this patient was done with transvaginal sonography and color Doppler. According to suspicious appearances, angiography was planned for confirmation of UAVM.
Conclusion: UAVM is one of the molar pregnancy complications. The first step for diagnosis of UAVM is transvaginal ultrasonography and color Doppler assessment. Embolization is the best treatment for women who intend to preserve fertility.
Ashraf Jamal, Vajiheh Marsoosi, Fatemeh Sarvestani, Neda Hashemi,
Volume 19, Issue 9 (9-2021)
Abstract
Background: The cerebroplacental ratio (CPR) is an important index for predicting adverse pregnancy outcomes in small-for-gestational-age and appropriate-for-gestational-age fetuses.
Objective: To find out whether there is an association between the CPR level and the blood cord gases analysis in appropriate for gestational age fetuses.
Material and Method: This cross- sectional study included 347 pregnant women at the gestational age of 37-40 week. Patients had an appropriate-for-gestational-age fetus confirmed from their first ultrasonography results. Participants were divided into two groups based on their CPR, measured before delivery. Finally, after delivery, arterial blood gas level and the incidence of emergency cesarean section, intrapartum fetal distress and neonatal intensive care unit admissions were compared between the two groups.
Results: Fifty-four (15.6%) cases had a CPR below the detection limit of the assay. The incidence of fetal distress, emergency cesarean section, neonatal hospitalization in the neonatal intensive care unit, and pH < 7.2 were significantly lower in women with CPR ≥ 0.67 multiples than in women with a CPR < 0.67 multiples of the median.
Conclusion: The third-trimester CPR is an independent predictor of stillbirth and perinatal mortality and morbidity. The role of UA/MCA Doppler and the CPR in assessing the risk of adverse pregnancy outcomes should be evaluated prospectively.
Fatemeh Golshahi, Behrokh Sahebdel, Mahboobeh Shirazi, Fatemeh Rahimi Sharbaf, Hossein Rezaei Aliabadi, Mona Taghavipour, Seyede Houra Mousavi Vahed, Tayebeh Sedighi Darijani, Maria Nezamnia,
Volume 20, Issue 8 (8-2022)
Abstract
Background: The cerebroplacental ratio (CPR) is an important factor for predicting adverse neonatal outcomes in appropriate-for-gestational-age fetuses.
Objective: To evaluate whether there is an association between the CPR level and adverse neonatal outcomes in appropriate-for-gestational-age fetuses.
Materials and Methods: This cross-sectional study included 150 low-risk pregnant women candidates for elective cesarean sections at the gestational age of 39 wk. CPR and middle cerebral artery pulsatility index (MCA PI) were calculated in participants just before cesarian section. Postnatal complications were defined as an adverse neonatal outcome such as an Apgar score of the neonate ≤ 7 at 5 min, neonatal intensive care unit (NICU) admission, cord arterial pH ≤ 7/14, and meconium stained liquor.
Results: The mean age of participants was 31.53 ± 4.91 yr old. The mean CPR was reported as 1.83 ± 0.64. The Chi-square test analysis revealed that a low MCA PI and a low CPR were significantly associated with decreased cord arterial pH, decreased Apgar score at 5 min, and NICU admission (p < 0.001). There was no significant association between umbilical artery PI with arterial cord pH, Apgar score at 5 min, NICU admission, or meconium stained liquor. The Mann-Whitney test showed that a lower fetal weight appropriate for the women’s gestational age was significantly associated with a decreased CPR and MCA PI (p < 0.005). There was no significant association between amniotic fluid index and CPR, umbilical artery PI, or MCA PI.
Conclusion: The CPR is a significant factor in predicting adverse neonatal outcomes and ultimately neonatal mortality and morbidity of low risk, appropriate-for-gestational-age fetuses.
Sedigheh Hantoushzadeh, Arezoo Behzadian, Mohammad Mehdi Hasheminejad, Faezeh Hasheminejad, Alireza Helal Birjandi, Mojtaba Akbari, Marjan Ghaemi,
Volume 22, Issue 1 (1-2024)
Abstract
Background: Pre-eclampsia (PE) is a multiorgan disorder that affects 2-5% of all pregnant women. Present recommendations for when to start aspirin in high-risk women are after 11 wk of gestation.
Objective: We present a protocol to investigate the effectiveness of aspirin use from early pregnancy, which is a randomized controlled trial to assess whether prescribed low-dose aspirin from early pregnancy reduces the prevalence of early and late-onset PE. Additionally, to compare the effectiveness of aspirin administration before and after 11 wk in reducing the occurrence of PE?
Materials and Methods: All pregnancies at risk of PE, according to demographic and midwifery history, who are referred to the Maternal-Fetal Clinic of Tehran University hospital, Tehran, Iran were invited to take part in the trial. The outcomes of pregnancy and newborns will be gathered and analyzed. The first registration for the pilot study was in January 2023, and the participants were recognized as high-risk for PE. In addition, enrollment in the main study will begin as of October 2023.
