The diagnostic role of "in utero” magnetic resonance imaging

Vimercati, Antonella; Greco, Pantaleo; Vera, Liliana; Resta, M.; Selvaggi, Luigi

doi:10.1515/jpm.1999.043

Cited by 26 publications

(12 citation statements)

References 15 publications

(9 reference statements)

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“…In 10-25% of the cases, even in experienced hands, associated anomalies are not detected by US [20]. In some of those cases the US is not able to detect for example migration disorders or corpus callosum agenesis [7,[22][23]. In other cases, technical problems, like obesity or oligohydramnios, are the reason for failing in making a correct diagnosis.…”

Section: Discussionmentioning

confidence: 99%

Ultrafast Scan Magnetic Resonance in Prenatal Diagnosis

Wagenvoort¹,

Bekker²,

Go³

et al. 2000

Fetal Diagn Ther

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Objective: To determine whether magnetic resonance (MR) can give additional information in prenatal diagnosis of congenital anomalies, when the ultrasound (US) analysis is not conclusive. Methods: Ultrafast MR scanning examined 39 pregnant women with 41 fetuses in whom US was suspicious of fetal congenital abnormalities. Two techniques were used namely (1) HASTE inversion recovery sequence and (2) FISP 2D. Results: Thirty-nine patients with 41 fetuses were referred for MR because of an equivocal US with regard to brain, spine, skeletal and miscellaneous anomalies. In 1 twin pregnancy, 1 co-twin has not been examined with MRI because of its demise. In 22 of them, additional information was obtained by MR. In 9 the MR was confirmative with the US examination. Four were false negative, comparing with the postnatal diagnosis. Three failed because of maternal claustrophobia and in 2 a diagnosis could not be made. From the 40 fetuses in this study, 38 were examined postnatally by MR, US, plain X-ray or autopsy was performed to confirm the prenatal diagnosis. Conclusion: The use of MRI in obstetrics has been limited, until recently. With fast MRI sequences it is not necessary to sedate the fetus. It is advisable in cases where US is equivocal concerning congenital anomalies of the fetus to use MR with fast or ultrafast scan technique, especially when the central nervous system is concerned.

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Section: Discussionmentioning

confidence: 99%

Ultrafast Scan Magnetic Resonance in Prenatal Diagnosis

Wagenvoort¹,

Bekker²,

Go³

et al. 2000

Fetal Diagn Ther

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“…It has been demonstrated that in cases in which the sonographic diagnosis is unclear, MR examinations can provide important anatomic information that aids in diagnosis, parental counseling, planning delivery, and perinatal surgical procedures (86,(95)(96)(97)(98). In particular, MR can be helpful in assessment of sacrococcygeal teratoma.…”

Section: Non-cns Anomaliesmentioning

confidence: 99%

Obstetric MRI

Levine

2006

Magnetic Resonance Imaging

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Ultrasound is the imaging modality of choice for pregnant patients. However, MRI is increasingly utilized in patients in whom the sonographic diagnosis is unclear. These include maternal conditions unique to pregnancy such as ectopic pregnancy, placenta accreta, and uterine dehiscence. MRI is also being increasingly utilized in the assessment of abdominopelvic pain in pregnancy, in particular in assessment for appendicitis. Fetal MRI is performed to assess central nervous system (CNS) abnormalities and patients who are considering fetal surgery for conditions such as neural tube defects, congenital diaphragmatic hernia, and masses that obstruct the airway. In the future, functional MRI and fetal volumetry may provide additional information that can aid in our care of complicated pregnancies.

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“…Disagreement was noted mainly for midline anomalies (48.6%) [21]. In another study of 92 patients, MRI diagnosed more anomalies in fetal brain, thorax, abdomen, and skeletal systems [22]. Some studies have confirmed this superiority of MRI [2,22].…”

Section: Indications Of Fetal Mrimentioning

confidence: 95%

“…In another study of 92 patients, MRI diagnosed more anomalies in fetal brain, thorax, abdomen, and skeletal systems [22]. Some studies have confirmed this superiority of MRI [2,22]. These studies were, however, criticized for their inherent biases, such as their retrospective nature, skill of ultrasound examiners, and time lapse between ultrasound and MRI that may allow for some in utero evolution of the lesions.…”

Section: Indications Of Fetal Mrimentioning

confidence: 99%

Fetal magnetic resonance imaging and ultrasound

Wataganara

Ebrashy

Aliyu

et al. 2016

Journal of Perinatal Medicine

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Magnetic resonance imaging (MRI) has been increasingly adopted in obstetrics practice in the past three decades. MRI aids prenatal ultrasound and improves diagnostic accuracy for selected maternal and fetal conditions. However, it should be considered only when highquality ultrasound cannot provide certain information that affects the counseling, prenatal intervention, pregnancy course, and delivery plan. Major indications of fetal MRI include, but are not restricted to, morbidly adherent placenta, selected cases of fetal brain anomalies, thoracic lesions (especially in severe congenital diaphragmatic hernia), and soft tissue tumors at head and neck regions of the fetus. For fetal anatomy assessment, a 1.5-Tesla machine with a fast T2-weighted single-shot technique is recommended for image requisition of common fetal abnormalities. Individual judgment needs to be applied when considering usage of a 3-Tesla machine. Gadolinium MRI contrast is not recommended during pregnancy. MRI should be avoided in the first half of pregnancy due to small fetal structures and motion artifacts. Assessment of fetal cerebral cortex can be achieved with MRI in the third trimester. MRI is a viable research tool for noninvasive interrogation of the fetus and the placenta.

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The diagnostic role of "in utero” magnetic resonance imaging

Cited by 26 publications

References 15 publications

Ultrafast Scan Magnetic Resonance in Prenatal Diagnosis

Ultrafast Scan Magnetic Resonance in Prenatal Diagnosis

Obstetric MRI

Fetal magnetic resonance imaging and ultrasound

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