A public health concern: Rising cardiovascular burden

Figures

• 

  Figure 1. Cervical elastography image obtained from a short cervix using E-cervixTM. Acquisition of cervical elastography was performed in the mid-sagittal plane when measuring cervical length. Elastographic parameters and cervical length (CL) are displayed on the bottom left of the image. ECI, elasticity contrast index; EOS, mean of external os strain; HR, hardness ratio; IOS, mean of internal os strain.

• 

  Figure 2. Study population.

• 

  Figure 3. Preprogesterone and postprogesterone changes in elastographic parameters. Solid and dashed lines represent the mean value of the groups of delivery ≥32 weeks and delivery <32 weeks, respectively. IOS, mean of internal os strain; EOS, mean of external os strain; ECI, elasticity contrast index; HR, hardness ratio; CL, cervical length; PP0, preprogesterone; PP1, 1 week postprogesterone.

• 

  Figure 4. Receiver operating characteristic curve for the prediction of spontaneous preterm delivery at <32 weeks using the predicted probability calculated from the logistic regression model using cervical length and cervical elastographic parameters. IOS, mean internal os strain; EOS, mean external os strain; PP0, preprogesterone; PP1, 1 week postprogesterone treatment.