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Research Article

Placental volume in pregnant women with opioid use: prenatal MRI assessment

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Article: 2157256 | Received 30 Aug 2022, Accepted 02 Dec 2022, Published online: 04 Jan 2023

Figures & data

Figure 1. Sagittal HASTE image through the placenta.

Figure 1. Sagittal HASTE image through the placenta.

Figure 2. Axial HASTE image through the placenta, prior to (left image) and after (right image) semiautomated segmentation.

Figure 2. Axial HASTE image through the placenta, prior to (left image) and after (right image) semiautomated segmentation.

Figure 3. Axial HASTE images through the placentas of two different subjects demonstrating the semiautomated segmentation for calculation of cross-sectional area of placenta on each slice. The placental area on each slice was then summed up and multiplied by the image slice thickness to yield total placental volume. Linear calipers are automatically generated by the software.

Figure 3. Axial HASTE images through the placentas of two different subjects demonstrating the semiautomated segmentation for calculation of cross-sectional area of placenta on each slice. The placental area on each slice was then summed up and multiplied by the image slice thickness to yield total placental volume. Linear calipers are automatically generated by the software.

Table 1. Study population characteristics.

Table 2. Linear regression model of placental size and multiple independent covariates.

Table 3. Linear regression model of birth weight and multiple independent covariates including the placental volume on placental MRI.