Deparment of Radiology and Biomedical Imaging, University of California, 185 Berry Street, San Francisco, CA, USA.
Deparment of Radiology and Biomedical Imaging, University of California, 185 Berry Street, San Francisco, CA, USA.
Magn Reson Imaging. 2022 Jan;85:251-261. doi: 10.1016/j.mri.2021.10.008. Epub 2021 Oct 16.
In this study, the objective was to characterize the MR signatures of the various benign prostate tissues and to differentiate them from cancer. Data was from seventy prostate cancer patients who underwent multiparametric MRI (mpMRI) and subsequent prostatectomy. The scans included T2-weighted imaging (T2W), diffusion weighted imaging, dynamic contrast-enhanced MRI (DCE MRI), and MR spectroscopic imaging. Histopathology tissue information was translated to MRI images. The mpMRI parameters were characterized separately per zone and by tissue type. The tissues were ordered according to trends in tissue parameter means. The peripheral zone tissue order was cystic atrophy, high grade prostatic intraepithelial neoplasia (HGPIN), normal, atrophy, inflammation, and cancer. Decreasing values for tissue order were exhibited by ADC (1.8 10 mm/s to 1.2 10 mm/s) and T2W intensity (3447 to 2576). Increasing values occurred for DCE MRI peak (143% to 157%), DCE MRI slope (101%/min to 169%/min), fractional anisotropy (FA) (0.16 to 0.19), choline (7.2 to 12.2), and choline / citrate (0.3 to 0.9). The transition zone tissue order was cystic atrophy, mixed benign prostatic hyperplasia (BPH), normal, atrophy, inflammation, stroma, anterior fibromuscular stroma, and cancer. Decreasing values occurred for ADC (1.6 10 mm/s to 1.1 10 mm/s) and T2W intensity (2863 to 2001). Increasing values occurred for DCE MRI peak (143% to 150%), DCE MRI slope (101%/min to 137%/min), FA (0.18 to 0.25), choline (7.9 to 11.7), and choline / citrate (0.3 to 0.7). Logistic regression was used to create parameter model fits to differentiate cancer from benign prostate tissues. The fits achieved AUCs ≥0.91. This study quantified the mpMRI characteristics of benign prostate tissues and demonstrated the capability of mpMRI to discriminate among benign as well as cancer tissues, potentially aiding future discrimination of cancer from benign confounders.
在这项研究中,目的是描述各种良性前列腺组织的磁共振(MR)特征,并将其与癌症区分开来。数据来自 70 名接受多参数磁共振成像(mpMRI)和随后前列腺切除术的前列腺癌患者。扫描包括 T2 加权成像(T2W)、扩散加权成像、动态对比增强磁共振成像(DCE MRI)和磁共振波谱成像。组织病理学信息被转化为磁共振图像。mpMRI 参数分别按区域和组织类型进行描述。根据组织参数均值的趋势对组织进行排序。外周带组织顺序为囊性萎缩、高级别前列腺上皮内瘤变(HGPIN)、正常、萎缩、炎症和癌症。ADC(1.810mm/s 至 1.210mm/s)和 T2W 强度(3447 至 2576)的组织顺序值降低。DCE MRI 峰值(143%至 157%)、DCE MRI 斜率(101%/min 至 169%/min)、分数各向异性(FA)(0.16 至 0.19)、胆碱(7.2 至 12.2)和胆碱/枸橼酸盐(0.3 至 0.9)的组织顺序值增加。移行带组织顺序为囊性萎缩、混合性良性前列腺增生(BPH)、正常、萎缩、炎症、基质、前纤维肌肉基质和癌症。ADC(1.610mm/s 至 1.110mm/s)和 T2W 强度(2863 至 2001)的组织顺序值降低。DCE MRI 峰值(143%至 150%)、DCE MRI 斜率(101%/min 至 137%/min)、FA(0.18 至 0.25)、胆碱(7.9 至 11.7)和胆碱/枸橼酸盐(0.3 至 0.7)的组织顺序值增加。使用逻辑回归创建区分癌症和良性前列腺组织的参数模型拟合。拟合获得的 AUC 值≥0.91。本研究量化了良性前列腺组织的 mpMRI 特征,并证明了 mpMRI 区分良性和癌症组织的能力,可能有助于未来区分癌症与良性混杂因素。
Acad Radiol. 2017-11-20
CA Cancer J Clin. 2016-1-7
Cancer Epidemiol Biomarkers Prev. 2016-3