The Clinical Application of SSFSE Combined with DWI Sequence in Prenatal Fetal Head and Neck Space-occupying Lesions
Objective:To explore the clinical application of magnetic resonance single-shot fast spin-echo(SSFSE)sequence combined with diffusion-weighted imaging(DWI)in the localization and qualitative diagnosis of prenatal fetal head and neck space-occupying lesions.Methods:The magnetic resonance SSFSE and DWI data of 66 fetuses with suspected head and neck space-occupying lesions after ultrasound screening from October 2018 to October 2023 were retrospectively analyzed.Compare the consistency between qualitative diagnosis and ultrasound diagnosis by observing the location of lesions,signal characteristics,and the localization of fetal head and neck space-occupying lesions.Results:The combination of SSFSE sequence and DWI sequence clearly and accurately displays the location and nature of fetal head and neck space-occupying lesions.Among the 66 cases,cysts accounted for approximately 57.6％(38/66),hematomas accounted for 30.3％(20/66),and tumors accounted for 12.1％(8/66).The common cysts were arachnoid cysts and subventricular cysts.The location of the hematoma was mostly intraventricular hematoma.For the diagnosis of fetal head and neck space-occupying lesions,the diagnostic accuracy of prenatal magnetic resonance SSFSE sequence combined with DWI sequence(66/66,100％)was higher than that of ultrasound diagnosis(53/66,80％)(P＜0.001).Conclusion:The combination of SSFSE and DWI sequence can accurately locate and characterize fetal head and neck space-occupying lesions and has a high application value in clinical diagnosis and treatment guidance.
Fetal head and neckSpace occupying lesionsSSFSEDWI
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NSTL
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