Ploussard 2014.
Study characteristics | |||
Patient sampling | Aim of the study: comparison of the PCa detection rate between SBx versus template Bx Type of study: prospective cohort Selection: consecutive Enrolled/eligible: 2753/2753 Inclusion period: December 2001‐December 2011 |
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Patient characteristics and setting | Inclusion criteria: suspicious for PCa, by
Exclusion criteria: none Setting: Créteil, France. Tertiary care hospital Age: mean 64.2 years (SD 7.8) PSA: mean 12.5 ng/mL (SD 7.2) Prostate volume: mean 46.4 mL (SD 25.3) Positive DRE: 318 participants |
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Index tests | Index test: transrectal extended sextant 12‐cores SBx, as part of a 21‐core transrectal Bx protocol | ||
Target condition and reference standard(s) | Target condition: GS ≥ 3+3, GS ≥ 3+4 Reference standard: 21‐core transrectal Bx protocol: first 6 sextant biopsies (standard 45° angle), then 3 Bx in each peripheral zone (80° angle), then 3 Bx in each transition zone, and finally 3 Bx in the midline peripheral zone. The SBx were part of the 21‐core saturation Bx protocol, and therefore the reference standard is not independent of the index test. |
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Flow and timing | All participants underwent the same 21‐core Bx protocol. No participants were excluded for analysis. | ||
Comparative | |||
Notes | |||
Methodological quality | |||
Item | Authors' judgement | Risk of bias | Applicability concerns |
DOMAIN 1: Patient Selection | |||
Was a consecutive or random sample of patients enrolled? | Yes | ||
Did the study avoid inappropriate exclusions? | Yes | ||
Low | Low | ||
DOMAIN 2: Index Test SBx | |||
Was the MRI assessed without knowledge of the results of the (reference or other index) biopsies? | |||
Were the MRI‐TBx performed independent of the (reference or other index) biopsies? | |||
Was the performance of the SBx not influenced by the performance of the (reference or other index) biopsies? | No | ||
High | Low | ||
DOMAIN 3: Reference Standard | |||
Is the reference standards likely to correctly classify the target condition? | No | ||
Was the reference standard performed independent from the index test? | No | ||
High | Low | ||
DOMAIN 4: Flow and Timing | |||
Did all patients receive the same reference standard? | Yes | ||
Were all enrolled patients included in the analysis, or were exclusions explained and not leading to a relevant bias? | Yes | ||
Low |