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Diagnostic efficacy of virtual organ computer-assisted analysis in measuring the volume ratio of subchorionic hematoma with serum progesterone

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World Journal of Clinical Cases 2024年第17期12卷 3053-3060页

作者： Lin-Ling Shen Jing Shi Chang-Wei Ding Gao-Le Dai Qi Ma Department of ultrasound The Second Affiliated Hospital of Soochow UniversitySuzhou 215004Jiangsu ProvinceChina Department of ultrasound Wuxi People’s Hospital of Nanjing Medical UniversityWuxi 211103Jiangsu ProvinceChina

BACKGROUND Subchorionic hematoma(SCH)is a common complication in early pregnancy characterized by the accumulation of blood between the uterine wall and the chorionic membrane.SCH can lead to adverse pregnancy outcomes such as miscarriage,preterm birth,and other complications.Early detection and accurate assessment of SCH are crucial for appropriate management and improved pregnancy outcomes.AIM To evaluate the diagnostic efficacy of virtual organ computer-assisted analysis(VOCAL)in measuring the volume ratio of SCH to gestational sac(GS)combined with serum progesterone on early pregnancy outcomes in patients with SCH.METHODS A total of 153 patients with SCH in their first-trimester pregnancies between 6 and 11 wk were enrolled.All patients were followed up until a gestational age of 20 wk.The parameters of transvaginal two-dimensional ultrasound,including the circumference of SCH(Cs),surface area of SCH(Ss),circumference of GS(Cg),and surface area of GS(Sg),and the parameters of VOCAL with transvaginal three-dimensional ultrasound,including the three-dimensional volume of SCH(3DVs)and GS(3DVg),were recorded.The size of the SCH and its ratio to the GS size(Cs/Cg,Ss/Sg,3DVs/3DVg)were recorded and compared.RESULTS Compared with those in the normal pregnancy group,the adverse pregnancy group had higher Cs/Cg,Ss/Sg,and 3DVs/3DVg ratios(P<0.05).When 3DVs/3DVg was 0.220,the highest predictive performance predicted adverse pregnancy outcomes,resulting in an AUC of 0.767,and the sensitivity,specificity were 70.2%,75%respectively.VOCAL measuring 3DVs/3DVg combined with serum progesterone gave a diagnostic AUC of 0.824 for early pregnancy outcome in SCH patients,with a high sensitivity of 82.1%and a specificity of 72.1%,which showed a significant difference between AUC.CONCLUSION VOCAL-measured 3DVs/3DVg effectively quantifies the severity of SCH,while combined serum progesterone better predicts adverse pregnancy outcomes.

关键词： Subchorionic hematoma Virtual organ computer-assisted analysis Gestational sac Serum progesterone ultrasound parameters Adverse pregnancy outcomes

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ultrasound-induced biophysical effects in controlled drug delivery

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Science China(Life Sciences) 2022年第5期65卷 896-908页

作者： Lulu Zhang Zhuohua Lin Lan Zeng Fan Zhang Lihong Sun Suhui Sun Ping Wang Menghong Xu Jinxia Zhang Xiaolong Liang Huiyu Ge Department of ultrasound Peking University Third HospitalBeijing 100191China

ultrasound is widely used in biomedical engineering and has applications in conventional diagnosis and drug delivery.Recent advances in ultrasound-induced drug delivery have been summarized previously in several reviews that have primarily focused on the fabrication of drug delivery carriers.This review discusses the mechanisms underlying ultrasound-induced drug delivery and factors affecting delivery efficiency,including the characteristics of drug delivery carriers and ultrasound parameters.Firstly,biophysical effects induced by ultrasound,namely thermal effects,cavitation effects,and acoustic radiation forces,are illustrated.Secondly,the use of these biophysical effects to enhance drug delivery by affecting drug carriers and corresponding tissues is clarified in detail.Thirdly,recent advances in ultrasound-triggered drug delivery are detailed.Safety issues and optimization strategies to improve therapeutic outcomes and reduce side effects are summarized.Finally,current progress and future directions are discussed.

关键词： ultrasound biophysical effects drug delivery systems ultrasound parameters ultrasound-triggered drug delivery

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