Motivation: Fetal absolute temperature monitoring ensures safety and stability during fetal MR scans, assessing thermoregulation, and pathological conditions. Noninvasive methods are needed.
Goal(s): To develop a noninvasive method for computing fetal absolute temperature by leveraging mean diffusivity from fetal brain DTI and true diffusivity from IVIM-based calculations in the amniotic fluid.
Approach: Mean diffusivity estimates from cerebrospinal-fluid (CSF), and pure water diffusion in amniotic fluid were obtained. Absolute temperature maps were estimated using a biophysical model.
Results: The study confirms that diffusivity-based temperature estimates in fetal CSF and amniotic fluid align with physiological expectations in four fetuses across different gestational ages and acquisition settings.
Impact: We implemented a method to directly compute the average fetal temperature from the CSF and the amniotic fluid diffusivity to measure the absolute fetal temperature.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords