Medical imaging in pregnancy

Medical imaging in pregnancy refers to the use of non-invasive imaging techniques to visualize and diagnose conditions related to pregnancy. These techniques include ultrasound, MRI, and, in rare cases, CT scans. The choice of imaging modality is often determined by the potential risk to the fetus and the diagnostic value of the imaging technique.

Ultrasound

Ultrasound is the most commonly used imaging technique in pregnancy. It uses high-frequency sound waves to create images of the fetus and the mother's reproductive organs. Ultrasound is considered safe for both the mother and the fetus as it does not involve ionizing radiation. It is used for various purposes such as confirming the pregnancy, determining the gestational age, assessing fetal growth and development, and detecting any abnormalities or complications.

Magnetic Resonance Imaging

MRI is another imaging technique used in pregnancy, especially when ultrasound is not sufficient for diagnosis. MRI uses a magnetic field and radio waves to create detailed images of the body's internal structures. It does not involve ionizing radiation, making it safe for use in pregnancy. However, its use is limited due to the long duration of the scan and the need for the mother to remain still.

Computed Tomography

CT scans are rarely used in pregnancy due to the risk associated with ionizing radiation. However, in certain situations where the benefit outweighs the risk, such as in emergencies or when other imaging techniques are not sufficient, CT scans may be used.

Risks and Considerations

While medical imaging in pregnancy is generally considered safe, there are potential risks and considerations. The main concern is the potential harm to the fetus from exposure to ionizing radiation, which is associated with CT scans. Other considerations include the discomfort to the mother from the imaging procedure and the potential for false-positive or false-negative results.

See Also

• Obstetric ultrasonography
• Prenatal diagnosis
• Radiation and pregnancy

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  Volume rendered CT scan of a pregnancy of 37 weeks of gestational age

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  Embryo at 14 weeks profile

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  Median plane CT scan of a pregnancy of 37 weeks of gestational age

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  Baby X-ray

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  MRI of a fetus with pentalogy of Cantrell