Normal placental-myometrial interface on MRI
Updates to Case Attributes
MRI can be useful for additional problem-solving ofplacental problems after ultrasound examination, includingabnormal placental implantation implantation.
IV contrast is not needed for evaluation (in fact, it is contraindicated). Instead, six key sequences are needed:
- triplanar balanced steady state free precession sequences (bSSFSP)
- triplanar T2 single shot fast spine echo sequences (SSFSE or HASTE)
Some institutions add a T1 fat sat axial sequence as well.
The goal of these sequences is to provide the best tradeoff of spatial and contrast resolution of the placental-myometrial interface.
Usually, a fetal MRI is ordered to evaluate the fetus rather than the placenta, but the placenta signal, shape, and attachment should still be commented upon.
For more information, see placental evaluation with MRI.
-<p>MRI can be useful for additional problem-solving of <a href="/articles/placenta">placental </a>problems after ultrasound examination, including <a href="/articles/spectrum-of-abnormal-placental-villous-adherence">abnormal placental implantation</a>.</p><p>IV contrast is not needed for evaluation (in fact, it is contraindicated). Instead, six key sequences are needed:</p><ul>- +<p>MRI can be useful for additional problem-solving of <a href="/articles/placenta">placental </a>problems after ultrasound examination, including <a href="/articles/spectrum-of-abnormal-placental-villous-adherence">abnormal placental implantation</a>.</p><p>IV contrast is not needed for evaluation (in fact, it is contraindicated). Instead, six key sequences are needed:</p><ul>
-</ul><p>Some institutions add a T1 fat sat axial sequence as well.</p><p>The goal of these sequences is to provide the best tradeoff of spatial and contrast resolution of the placental-myometrial interface.</p><p>Usually a fetal MRI is ordered to evaluate the fetus rather than the placenta, but the placenta signal, shape, and attachment should still be commented upon.</p><p>For more information, see <a href="/articles/placental-evaluation-with-mri">placental evaluation with MRI</a>.</p>- +</ul><p>Some institutions add a T1 fat sat axial sequence as well.</p><p>The goal of these sequences is to provide the best tradeoff of spatial and contrast resolution of the placental-myometrial interface.</p><p>Usually, a fetal MRI is ordered to evaluate the fetus rather than the placenta, but the placenta signal, shape, and attachment should still be commented upon.</p><p>For more information, see <a href="/articles/placental-evaluation-with-mri">placental evaluation with MRI</a>.</p>
Updates to Study Attributes
The green trace outlines the placenta. The blue bracketed area appears slightly blurry, and one might think of placental invasion... however, this does not hold up on other images.
The red arrows point to the inner and outer myometrial layer. The yellow arrow points at the inner T2 hyperintense layer.
Image Annotated image (Sagittal to fetus) ( update )
Image Annotated image (Zoom in) ( update )
