Costa 2013.
Study characteristics | |||
Patient sampling | Aim of the study: to assess the value of MRI and MRI‐TBx added to standard SBx for detecting clinical relevant PCa Type of study: retrospective analysis Selection: retrospective selection of participants meeting inclusion criteria Enrolled/eligible: 38/1053 (of the 1053 participants who had had an MRI, 38 participants met the inclusion criteria) Inclusion period: August 2003‐August 2008 |
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Patient characteristics and setting | Inclusion criteria: men with ≥ 2 prior‐negative biopsies who underwent MRI and subsequent SBx complemented with MRI‐TBx of MRI‐suspicious lesions. All men were referred for MRI because of PSA > 4 ng/mL, PSA velocity > 0.75 ng/mL/year or equivocal histopathology from previous Bx Setting: Boston, USA. University hospital Age: mean 64 (range 48‐77) PSA: mean 14.4 (range 1.8‐33.1) Prostate volume: not reported |
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Index tests | Index test 1 : MRI‐pathway: a 3 Tesla MRI machine (Genesis Signa LX Excite, GE Healthcare) was used, with T1, T2 and DCE sequences. An in‐house MRI Likert 1‐5 scale was used, grouping score 1‐3 negative and 4‐5 positive. Cognitive MRI‐TBx from MRI‐positive lesions were taken, depending on judgement of urologist Index test 2: transrectal SBx was performed. Sequence of tests and number of cores were dependent on judgement of urologist. A total median of 19 (range 8‐28) cores (MRI‐TBx + SBx) were taken. MRI results were known at time of SBx performance |
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Target condition and reference standard(s) | No reference standard is used in this agreement analyses study (MRI‐pathway vs SBx), therefore the reference standard domain is not applicable and disregarded. | ||
Flow and timing | All participants underwent the same type of tests. All participants were included in the 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? | No | ||
Did the study avoid inappropriate exclusions? | Yes | ||
High | Low | ||
DOMAIN 2: Index Test SBx | |||
Was the MRI assessed without knowledge of the results of the (reference or other index) biopsies? | No | ||
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? | |||
High | High | ||
DOMAIN 2: Index Test MRI‐pathway | |||
Was the MRI assessed without knowledge of the results of the (reference or other index) biopsies? | Yes | ||
Were the MRI‐TBx performed independent of the (reference or other index) biopsies? | Unclear | ||
Was the performance of the SBx not influenced by the performance of the (reference or other index) biopsies? | |||
Unclear | High | ||
DOMAIN 3: Reference Standard | |||
Is the reference standards likely to correctly classify the target condition? | Yes | ||
Was the reference standard performed independent from the index test? | Yes | ||
Low | 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 |