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First author, Year of publication, Country | Number of patients, Age | MRI Imaging details, Median volume | Reference method, Median volume | Reference details | Correlation data | Concordance Data and over/under estimation | Other comments | Scores for Bias (0-2) and Quality (0-4) |
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Sosna [30] 2003 USA | 11 pts, Mean 59 yrs | EC, PC, and ex vivo PC Mean volumes 26-31 EC, 37 PC, 34 mL ex vivo,3T MRI, no ERC | Fresh specimen weighed, SGF applied, Mean 40mL | SV removed | Linear regression R=0.32-0.75 for EC, 0.65 for PC in vivo, 0.86 for PC ex vivo | | 6 combinations of various axes used for EC, best was sagittal for AP and SI, axial for RL | B2 Q2 |
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Lee [20] 2006 Korea | 73 pts, age NS | EC, Mean 38cc 3T or ERC NS | Fresh weight within 1 hr, SGF applied, Mean 37cc | SV removed | Pearson R=0.96 P< 0.001 | Overestimated if < 35cc, underestimated if >35cc | Also tested TRUS, but MRI more accurate | B2 Q4 |
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Jeong [22] 2008 Korea | 21 pts, Mean 66 yrs | EC and PC, Means 41-51 mL, ERC used, 3T NS | displacement method, Mean 40mL | Fresh specimen within 1 hr, SV removed | Linear regression, R=0.84-92 | Students t-test P=0.03-0.70 | PC most accurate | B2 Q3 |
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Kwon [31] 2010 Korea | 579, Mean 64 yrs | EC, Mean 32 mL, 1.5T MRI, ERC NS | Fresh weight, Mean NS | SV removed | Pearson R=0.69 P< 0.001 | NS | | B2 Q2 |
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Bulman [32] 2012 USA | 91 pts, Mean 59 yrs | mpMRI EC, PC (manual and MFA). ERC, 3T, Mean 41-45 mL | Freshly weighed, Mean 50 mL | Average weight of SVs subtracted | Wilcoxon signed rank test and linear regression 0.78-0.90 | Bland-Altman plots, 92-97% within limits of agreement. All of the MRI methods underestimated the volume by around 15% | Multiple readers used, MFA similar in accuracy to manual planimetry, both more accurate than EC | B2 Q4 |
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Turkbey [33] 2012 USA | 98 pts, Median 61 yrs | EC, PC and automated PC, Means 29-48 cc 3T, ERC | Fresh specimen weight, Mean 52 cc | Included SVs | Pearson r=0.86-0.91 P<0.0001 | Partial and full Dice similarity coefficient 0.85-0.92 | Autosegmentation faster than manual PC | B2 Q3 |
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Karademir [34] 2013, USA | 61 pts, Median 64 yrs | Automated volume calculation, Mean 46 cc, 1.5T mpMRI, ERC | Weight from pathology reports, mean 50cc | Standard SV weight subtracted | Pearson r=0.94 P<0.0001 | Underestimated by 10% on average | | B2 Q2 |
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Hong [35], 2014, USA | 1756 pts, Median 59 yrs | EC, Median 31mL 3T NS, ERC NS | Weight from pathology report, Mean NS | Details NS | Pearson R=0.82, p< 0.0001 | NS | Higher grade cancer associated with smaller volume | B2 Q1 |
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Le Nobin [36], 2014, USA | 37 pts, Mean 60 yrs | PC Mean 47 mL 3T mpMRI, ERC NS | Post fixation, Mean 47 mL | Details NS | NS | Bland Altman 95% limits -7 to +8 mL | | B2 Q2 |
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Chernyak [37], 2015, USA | 49 pts, Mean 59 yrs | EC, either 1.5T or 3T With and without ERC, Means 46 and 51 cc | Weight retrospectively collected from report, Mean 55 gm | Included SV | ICC improved with ERC 0.90-0.96, mainly due to AP measurement | MRI underestimated weight, more so with ERC (9 vs 4 gm) | | B1 Q2 |
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Mazaheri [38], 2015, USA | 195 pts, Median 62 yrs | EC and PC, Median 42 cc for both, 3T MRI, ERC | Fresh weight from pathology report, Median 52 cc | Standard SV weight subtracted, applied SGF | Lin CCC used to assess correlation and concordance | Lin CCC = 0.85 (EC) and 0.87 (PC), both underestimated by approx. 10mL | | B2 Q3 |
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Paterson [29], 2016, Canada | 318 pts Mean 63 yrs | EC Mean 39cc | Fluid displacement method. Mean vol 37cc | Also prostate weight (ICC=0.96) | ICC 0.83 | Overestimation more common when a median lobe was present | Also used TRUS, MRI slightly more accurate, | B1 Q3 |
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Bezinque [39], 2018, USA | 99 pts, Median 63 yrs | Various EC and PC methods, Medians 35 to 49, 3T mpMRI, No ERC | Specimen wt and volume, Medians 37-54 mL | Details NS | ICC 0.66-0.73 | NS | MRI with segmentation was considered the reference | B1 Q2 |
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