ArticleCancer imaging : the official publication of the International Cancer Imaging Society2026
Prognostic features of biochemical recurrence of prostate cancer following radical prostatectomy based on diffusion kurtosis imaging.
Article in Cancer imaging : the official publication of the International Cancer Imaging Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesTo evaluate characteristics of diffusion kurtosis imaging (DKI), baseline prostate-specific antigen (PSA) and postoperative histopathological findings associated with biochemical recurrence (BCR) of prostate cancer (PCa) after radical prostatectomy (RP). MATERIALS &
methodsTotally, 44 BCR patients and 72 non-BCR patients who underwent RP from April 2019 to March 2021 were retrospective collected. Baseline PSA, parameters of DKI and histopathological characteristics of the patients were evaluated. Continuous variables were compared by independent sample t-test, and categorical variables were compared by Chi-square test and Fisher's exact test. Cox regression analysis was used to analyze the association between relevant characteristics and BCR. p<0.05 was considered statistically significant.
resultsResults of univariate Cox regression analysis showed that baseline T-PSA (p<0.001), F-PSA (p=0.034), F/T-PSA (p<0.001), mean diffusivity (MD) (p=0.002), mean kurtosis (MK) (p<0.001) and apparent diffusion coefficient (ADC) (p=0.021) values, ISUP grade group 4 or 5 (p<0.001), positive extraprostatic extension (EPE) (p<0.001), positive perineural invasion (p=0.041), Positive surgical margin (p=0.001) and positive lymphovascular invasion (p<0.001) were correlated with BCR. However, results of multivariate Cox regression analysis showed that baseline T-PSA (HR=10.579; 95% CI, 4.405–27.670; p<0.001), MK value (HR=3.034; 95% CI, 1.809–5.089; p<0.001), ISUP grade group 4 or 5 (HR=3.121; 95% CI, 1.352–7.209; p=0.008), positive EPE (HR=2.219; 95% CI, 1.058–4.651; p=0.035) and positive surgical margin (HR=2.816; 95% CI, 1.585–4.845; p=0.025) were independent risk factors for BCR.
conclusionMK value, as well as baseline F-PSA, ISUP grade group 4 or 5, positive EPE and surgical margin were associated with BCR of PCa after RP.
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