Differentiation of placenta percreta through MRI features and diffusion-weighted magnetic resonance imaging

Insights into Imaging

Original Article

Hang Li¹  Tao Lu¹  Mou Li¹  Meilin Zhu¹  Xinyi Zhao¹  Yi Yuan¹  Yishuang Wang¹  Feng Zhang¹ 

[1] Department of Radiology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, 32 West Second Section, First Ring Road, 610072, Chengdu, China;

关键词: Placenta accreta spectrum disorders;    Diffusion-weighted MRI;    Intravoxel incoherent motion;    Diffusion kurtosis imaging;   

DOI  :  10.1186/s13244-023-01448-z

 received in 2023-03-08, accepted in 2023-05-09,  发布年份 2023

来源: Springer

【 摘 要 】

ObjectivesTo identify whether parameters measured from diffusion kurtosis and intravoxel incoherent motion help diagnose placenta percreta.MethodsWe retrospectively enrolled 75 patients with PAS disorders including 13 patients with placenta percreta and 40 patients without PAS disorders. Each patients underwent diffusion-weighted imaging (DWI), intravoxel incoherent motion (IVIM), and diffusion kurtosis imaging (DKI). The apparent diffusion coefficient (ADC), perfusion fraction (f), pure diffusion coefficient (D), pseudo-diffusion coefficient (D*), mean diffusion kurtosis (MK) and mean diffusion coefficient (MD) were measured by the volumetric analysis and compared. MRI features were also analyzed and compared. The receiver operating characteristic (ROC) curve and logistic regression analysis were used to evaluate the diagnostic efficiency of different diffusion parameters and MRI features for distinguishing placental percreta.ResultsD* was an independent risk factor from DWI for predicting placenta percreta with sensitivity of 73% and specificity of 76%. Focal exophytic mass remained as independent risk factor from MRI features for predicting placenta percreta with sensitivity of 72.7% and specificity of 88.1%. When the two risk factors were combined together, the AUC was the highest, 0.880 (95% CI 0.8–0.96).ConclusionD* and focal exophytic mass were associated with placenta percreta. A combination of the 2 risk factors can be used to predict placenta percreta.Critical relevance statementA combination of D* and focal exophytic mass can be used to differentiate placenta percreta.

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

Fig. 1

41116_2023_36_Article_IEq466.gif

41116_2023_36_Article_IEq458.gif

41116_2023_36_Article_IEq452.gif

41116_2023_36_Article_IEq439.gif

41116_2023_36_Article_IEq436.gif