MRI in pregnancy: Indications and practical considerations

Mervak, Benjamin M.; Altun, Ersan; McGinty, Katrina; Hyslop, W. Brian; Semelka, Richard C.; Burke, Lauren M.

doi:10.1002/jmri.26317

Cited by 59 publications

(66 citation statements)

References 52 publications

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“…Although ultrasound findings provide a large amount of evidence, it is not sufficient in some cases to make a termination decision. Fetal magnetic resonance imaging, prenatal screening tests and invasive karyotype sampling methods should be used frequently [2][3][4].…”

Section: Discussionmentioning

confidence: 99%

“…During fetal evaluation, diagnosis should be made using all current evaluation parameters. In cases where ultrasound and diagnosis are not clear, using magnetic resonance is important for the diagnosis of fetal malformation [2][3][4]. In addition, obtaining a fetal karyotype sample (chorionic villus biopsy, amniocentesis, cordocentesis) to detect genetic problems will help the clinician in terms of definitive diagnosis.…”

Section: Introductionmentioning

confidence: 99%

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Retrospective cohort study of pregnancy terminations before the 24th week of pregnancy

Sever¹,

Ömeroğlu²,

Çakir³

et al. 2021

Journal of Surgery and Medicine

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Background/Aim: Termination, which indicates ending the pregnancy process, should be performed in fetal anomalies incompatible with life or maternal-life threatening pregnancies. Pregnancy termination involves a challenging process for both the clinician and the patients. Identifying the pathology indicating termination and sharing this decision with the family should include certain strategies. In this study, the indications for termination decision were examined. We think that these indications may help the clinician make a termination decision. Methods: In this retrospective cohort study, the indications, and termination procedures performed on 707 pregnant women in the Perinatology clinic of Izmir Tepecik Training and Research Hospital between November 2016 and November 2020 were analyzed retrospectively. Results: The total number of patients who underwent termination was 707. Their ages varied between 14 and 45 years (median 29.6). The median number of pregnancies among all patients was 2.5 (range: 1-12). The minimum and maximum gestational weeks of termination were 10 and 24 weeks, respectively (median 17.4). Termination indications were divided into groups: a) Congenital malformations (without karyotype diagnosis) (n=400, 56.5%) b) Congenital malformation with diagnosed karyotype anomalies (n=27, 3.8%) c) Only karyotype anomalies (n=146, 20.6%) d) Other fetal / obstetric disorders (anhydramnios, Preterm Premature Rupture of Membranes (PPROM), teratoma, Twin-to-twin transfusion syndrome (TTTS), drug use (n=115, 16.2%) e) Maternal causes (n=19, 2.6%). In addition, each group was divided into three groups according to the weeks of termination as 11-14 weeks, 15-22 weeks, and 23-24 weeks. The total number of patients for these groups were 170, 503 and 34, respectively. Patients without fetuses with karyotype anomalies and who were terminated due to congenital malformations were grouped according to the origin of the malformation: a) Central nervous system anomalies (57.2%) b) Multiple anomalies (18.7%) c) Hydrops fetalis (8%) d) Urinary system anomalies (6.5%) e) Skeletal system anomalies (5.7%) f) Cardiac anomalies (1.7%) g) Conjoined twins (1%) h) Congenital pulmonary airway obstruction (0.5%) i) Congenital diaphragmatic hernia (0.2%). Conclusion:The continuation of abnormal pregnancies brings many problems. Termination of pregnancies that are incompatible with life or involving serious anomalies is necessary in most cases. In daily practice, making the decision of termination and sharing it with the family should include an important algorithm.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Retrospective cohort study of pregnancy terminations before the 24th week of pregnancy

Sever¹,

Ömeroğlu²,

Çakir³

et al. 2021

Journal of Surgery and Medicine

View full text Add to dashboard Cite

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“…El Colegio Americano de Radiología (ACR) considera que el gadolinio puede usarse en el embarazo, siempre y cuando su beneficio sea mayor que el riesgo. En este caso se recomiendan los agentes macrocíclicos en la menor dosis posible 13 . Los estudios de RMF casi siempre se adquieren en equipos 1.5 T mediante una antena de cuerpo.…”

Section: Introductionunclassified

Papel de la resonancia magnética fetal en la valoración de las anomalías prenatales

García-Moreno¹,

Torres-Olivas²,

Barrera³

et al. 2021

ARM

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Objective: To evaluate the contribution of fetal magnetic resonance (FMR) as a complementary study in prenatal diagnosis of prenatal pathology. Material and methods: We compared the ultrasound (US) findings of 146 patients with the Fetal MRI findings. Patients were divided in two groups as follows: Patients with 18 to 27 weeks of gestation and patients with 28 to 36 weeks of gestation. FMR diagnostic contribution was considered when it: Confirmed de US diagnosis and added new information, when it changed the US diagnosis for a new one or when it ruled out the US findings and found no alterations. FMR non-contribution was considered when the FMR just confirmed the US findings without adding any new information. Results: FMR contributed with additional information in 56% of cases. In 44% of cases it just confirmed the ultrasonographic findings. There was no difference between the groups of 18-27 weeks and 28-36 weeks. Conclusion:The FMR is a valuable tool for the evaluation of prenatal pathology, contributing with additional information to that obtained by ultrasound in 56% of the cases.

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“…Уже более трех десятилетий магнитно-резонансная томография (МРТ) прочно вошла в пренатальную научно-практическую деятельность врачей-рентгенологов всего мира [1][2][3]. МРТ как диагностический метод, наравне с ультразвуковым исследованием (УЗИ), обладает основными качествами, необходимыми для высокоинформативной диагностики, и отвечает всем требованиям безопасности, необходимым для пренатальной диагностики [4,5].…”

Section: Introductionunclassified

Methodological aspects of the development of topographic-anatomical segmentation of the uterus in the second and third trimesters of pregnancy on MRI

Vyshedkevich

Semenova

Mashchenko

et al. 2021

Transl. med. (Print)

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Background. Magnetic resonance imaging (MRI) is a highly informative and safe method of examination during pregnancy, which helps to identify and localize pathological changes in the uterus or placenta.Objective. The goal of the study was to develop a universal topographic-anatomical segmentation of the pregnant uterus using MRI (with possible comparison with the bony landmarks) to determine the exact localization of abnormalities in the placenta and myometrium.Design and methods. A retrospective analysis of 96 MR images of the pelvis of pregnant women with various abnormalities in the placenta or myometrium was carried out.Results. The results of the analysis were used to develop a universal topographic and anatomical segmentation of the pregnant uterus by a step-by-step division of the entire area of the uterine walls into 12 conditionally equivalent segments. The sides of the uterus were marked with the capital letters D (Dexter — right), A (Anterior — anterior), S (Sinister — left), P (Posterior — posterior) to define the orientation, and with lowercase abbreviations sup (=superior), med (=median) and inf (=inferior) to specify the upper, middle and lower levels, respectively.Conclusion. MRI-based DASP segmentation analysis of MR images allows to accurately localize uterine abnormalities and can be used in clinical practice by radiologists and obstetricians when considering the delivery method.

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MRI in pregnancy: Indications and practical considerations

Cited by 59 publications

References 52 publications

Retrospective cohort study of pregnancy terminations before the 24th week of pregnancy

Retrospective cohort study of pregnancy terminations before the 24th week of pregnancy

Papel de la resonancia magnética fetal en la valoración de las anomalías prenatales

Methodological aspects of the development of topographic-anatomical segmentation of the uterus in the second and third trimesters of pregnancy on MRI

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