To predict prostate cancer by ultrasound radiomics in ultrasound fusion prostate targeted biopsy.
Researchers plan to develop a diagnostic and prognostic evaluation model for prostate cancer by analyzing abnormal echoes in prostate ultrasound images through radiomics. This model will be used to guide ultrasound radiomics-fusion prostate biopsy, and its accuracy will be compared with that of systematic biopsy.
Study Type
OBSERVATIONAL
Enrollment
464
For the high-risk targets identified by the radiomics model, perform targeted biopsy under ultrasound fusion.
170th Xinsong Rd, Minhang District
Shanghai, China
Positive rate of ultrasound radiomics fusion targeted biopsy
Positive rate of ultrasound radiomics fusion targeted biopsy
Time frame: Up to seventh day when the pathological results were obtained after the targeted biopsy
Positive rate of systematic biopsy
Positive rate of systematic biopsy
Time frame: Up to seventh day when the pathological results were obtained after the targeted biopsy
Positive rate of mpMRI cognitive fusion targeted biopsy
Positive rate of mpMRI cognitive fusion targeted biopsy
Time frame: Up to seventh day when the pathological results were obtained after the targeted biopsy
Ultrasound radiomics parameters
The ultrasound images are obtained by transrectal ultrasound while prostate biopsy. Then investigators use 3D-Slicer/ITK-SNAP software to draw the area of interest (ROI). "Pyradiomics" library will be used to extract the radiomics features.
Time frame: The 30min following the transrectal ultrasonography
Gleason's score of positive tissue
Gleason's score of positive tissue from targeted prostate biopsy. Prostate cancer was graded by Gleason score (GS) ranging from 6 to 10. Tumors of GS 6 (3 + 3) are considered low grade (LG), while GS ≥7 are high grade (HG).
Time frame: Up to seventh day when the pathological results were obtained after the targeted biopsy
PI-RADS score
Prostate Imaging Reporting and Data System (PI-RADS) score was obtained according to multiparametric magnetic resonance imaging. PI-RADS is used to standardize interpretation of prostate MRI. Each lesion is assigned a score from 1 to 5 indicating the likelihood of clinically significant cancer. PI-RADS 1: clinically significant cancer is highly unlikely to be present; PI-RADS 2: clinically significant cancer is unlikely to be present; PI-RADS 3: the presence of clinically significant cancer is equivocal; PI-RADS 4: clinically significant cancer is likely to be present; PI-RADS 5: clinically significant cancer is highly likely to be present.
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Time frame: Within one month prior to prostate biopsy.
Incidence of complications
Incidence of complications associated with prostate biopsy
Time frame: Up to the first month after the targeted biopsy