To investigate the diagnostic value of multimodal ultrasound of benign and malignant prostate lesions.
Methods:
The clinical
grayscale ultrasound
color Doppler ultrasound
elastography and contrast-enhanced ultrasound features of 228 patients with suspected prostate cancer in The Second Hospital of
Lanzhou University from June 2020 to March 2023 were analyzed
and they were divided into benign group (114 cases) and malignant group (114 cases) according to the pathological results of puncture. Univariate analysis and multivariate logistic regression analysis were performed on each modal ultrasound feature
independent predictors were screened
the receiver operating characteristic (ROC) curve was drawn
and the diagnostic efficacy of single application and combination application of each ultrasound feature in the identification of benign and malignant prostate lesions was evaluated.
Results:
Univariate analysis showed that there were significant differences in age
volume
total prostate-specific antigen (tPSA)
free prostate-specific antigen (fPSA)
prostate-specific antigen density (PSAD)
echo of the lesion
calcification
unclear boundary between internal and external glands
heterogeneous echo of external glands
unsmooth and intact capsule
Doppler baseline score >2
strain elasticity 5 score >2
initial increase time
initial increase speed
peak enhancement
clearance time and clearance speed. Multivariate logistic analysis showed that PSAD
nonsmooth and intact capsule
strain elasticity 5 score >2
fast advance and high contrast enhancement were independent predictors of benign and malignant prostate lesions
the area under curve (AUC) was 0.881
0.627
0.743
0.701 and 0.620
respectively
and 0.936 for combined application.
Conclusion:
PSAD
the unsmooth and intact capsule of the lesion
the 5-point method of ultrasonic strain elasticity of the prostate >2 points
contrast-enhanced ultrasound indicating fast progression of the lesion and high enhancement are effective in the diagnosis of benign and malignant lesions of the prostate
multi-mode ultrasound can improve the diagnostic efficiency of prostate cancer.