International journal of clinical oncology · 2021
Impact of prostate-specific antigen screening on tumor size in patients with prostate cancer in a super-aging district in Kyoto, Japan.
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Matsugasumi Toru, Okihara Koji, Tsujimoto Masashi, Sato Osamu, Imura Tetsuya, Yamada Yasuhiro, Fujihara Atsuko, Shiraishi Takumi, Hongo Fumiya, Ukimura Osamu
Аннотация
BACKGROUND: Population-based prostate-specific antigen (PSA) screening is effective for reducing prostate cancer (PCa)-related mortality rates. In this study, we assessed biopsy-proven maximum cancer core length (MCCL) and maximum cancer diameter on magnetic resonance imaging (MRI; MCDM) in prostate biopsy and multiparametric MRI (mp-MRI) by PCa detection.
METHODS: We retrospectively assessed 214 male PCa patients and 187 PCa patients with Prostate Imaging Reporting and Data System version 2 (PI-RADS) category 3-5 lesions in pre-biopsy mp-MRI and targeted biopsy characteristics. The mean biopsy-proven MCCL and MCDM were compared among three PSA screening groups, namely the population-based PSA screening (PBS), opportunistic PSA screening (OPS), and symptomatic outpatient PSA examination (SOP) groups.
RESULTS: The median age and PSA value of the 214 participants were 75 years and 7.9 ng/mL, respectively. In the PBS, OPS, and SOP groups, the median ages were 73, 76, and 76 years, respectively (p = 0.046); PSA values were 7.2, 9.5, and 11.5 ng/mL, respectively (p < 0.001); and biopsy-proven MCCL and MCDM were significantly increased to 7, 10, and 14 mm (p < 0.001) and to 11, 15, and 17 mm (p < 0.001), respectively. In the 187 PCa patients with PI-RADS category 3-5 lesions on mp-MRI, MCDM were 11, 14, and 17 mm (p < 0.001), respectively.
CONCLUSIONS: The biopsy-proven MCCL and MCDM were significantly smaller in the PBS and OPS groups than in the SOP group, which suggests that PSA screening detected PCa earlier than in symptomatic patients. PSA screening with MRI could objectively lead to earlier diagnosis based on tumor size.
METHODS: We retrospectively assessed 214 male PCa patients and 187 PCa patients with Prostate Imaging Reporting and Data System version 2 (PI-RADS) category 3-5 lesions in pre-biopsy mp-MRI and targeted biopsy characteristics. The mean biopsy-proven MCCL and MCDM were compared among three PSA screening groups, namely the population-based PSA screening (PBS), opportunistic PSA screening (OPS), and symptomatic outpatient PSA examination (SOP) groups.
RESULTS: The median age and PSA value of the 214 participants were 75 years and 7.9 ng/mL, respectively. In the PBS, OPS, and SOP groups, the median ages were 73, 76, and 76 years, respectively (p = 0.046); PSA values were 7.2, 9.5, and 11.5 ng/mL, respectively (p < 0.001); and biopsy-proven MCCL and MCDM were significantly increased to 7, 10, and 14 mm (p < 0.001) and to 11, 15, and 17 mm (p < 0.001), respectively. In the 187 PCa patients with PI-RADS category 3-5 lesions on mp-MRI, MCDM were 11, 14, and 17 mm (p < 0.001), respectively.
CONCLUSIONS: The biopsy-proven MCCL and MCDM were significantly smaller in the PBS and OPS groups than in the SOP group, which suggests that PSA screening detected PCa earlier than in symptomatic patients. PSA screening with MRI could objectively lead to earlier diagnosis based on tumor size.