Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, Stanford University, Stanford, CA, USA.
Cancer Imaging. 2022 Sep 3;22(1):45. doi: 10.1186/s40644-022-00481-3.
In the era of precision medicine, oncological imaging techniques are advancing at a rapid pace, particularly molecular imaging with promising new targets for prostate cancer (PC) such as gastrin releasing peptide receptors (GRPR) along the established and indispensable prostate specific membrane antigen (PSMA). As PC is characterized by heterogenous tumor biology ranging from indolent to aggressive disease, distinguishing clinically significant tumors from indolent disease is critical. Multiparametric MRI- and PET-targeted prostate biopsies mitigate the shortcomings and risks of standard systematic template biopsy by identifying more significant cancers.Focal treatment for localized disease is a minimally invasive approach that targets the index tumor - the lesion of the highest grade - while sparing the surrounding healthy tissue. Real-time MRI-guidance and thermal control with MR-thermometry, improves treatment accuracy and results in lower rates of functional side effects. PET imaging could be an useful tool to assess response to treatment compared to invasive prostate biopsies.In this comprehensive review, we focus on the image-guided detection and treatment of localized primary prostate cancer, its current status and future perspectives.
在精准医学时代,肿瘤影像学技术正在迅速发展,特别是分子影像学,为前列腺癌(PC)提供了有前途的新靶点,如胃泌素释放肽受体(GRPR)以及已确立且不可或缺的前列腺特异性膜抗原(PSMA)。由于 PC 的肿瘤生物学具有异质性,从惰性到侵袭性疾病不等,因此区分有临床意义的肿瘤与惰性疾病至关重要。多参数 MRI 和 PET 靶向前列腺活检通过识别更具意义的癌症,减轻了标准系统模板活检的缺点和风险。针对局限性疾病的局部治疗是一种微创方法,其针对的是指数肿瘤——即最高等级的病变——同时保留周围健康组织。实时 MRI 引导和 MR 测温的热控制可提高治疗准确性,并降低功能副作用的发生率。与侵入性前列腺活检相比,PET 成像可能是评估治疗反应的有用工具。在这篇全面的综述中,我们重点关注局部原发性前列腺癌的图像引导检测和治疗、其现状和未来展望。