Abstract
Objective: To compare congenital pulmonary airway malformation (CPAM) volume to head circumference ratios (CVRs) determined by different imaging modalities and calculation techniques.Methods: Fetal thoracic lesion images by ultrasound (US) and magnetic resonance imaging (MRI) were retrospectively reviewed and the CVRs were calculated. The CVRUS was determined by the standard method. The CVRMRI was calculated from T2-weighted sequences (HASTE/SSH-TSE) in two ways, dimensional measurements analogous to US technique (MRI-D) and by using a MRI-software calculated volume (MRI-V). CVR values between methods were compared using Wilcoxon matched-pairs signed-rank testing, Bland–Altman analyses, and Spearman correlations.Results: Appropriate images were available to compare CVRUS to CVRMRI-D for 20 patients and CVRUS to CVRMRI-V for 18 patients. There were no significant differences in CVR values between modalities. By Bland–Altman analyses, the CVR measurements were largely within the limits of agreement: 18 of 20 for CVRMRI-D and 17 of 18 for CVRMRI-V, with a slight bias towards larger measurements by MRI.Conclusions: Though values varied between modalities for individual patients, there was no systematic difference in CVRs determined by US or MRI. Fetal prognostic category for CPAMs did not change based on MRI in any patient in this series.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.