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在前列腺癌中评估局部扩张和淋巴结转移的PSMA PET/CT和多参数MRI

Mehmet Eflatun Deniz¹, Gülnihal Gür², Mehmet Vehbi Kayra¹

¹Urology, Baskent University Adana Dr. Turgut Noyan Hospital, Adana, Turkey.

International journal of urology : official journal of the Japanese Urological Association

|September 25, 2025

概括

与多参数磁共振成像 (mpMRI) 相比,前列腺特异性膜抗原正子发射断层扫描/计算机断层扫描 (PSMA PET/CT) 对检测精液囊侵入 (SVI) 和前列腺外延伸 (EPE) 的敏感性更高. 无论是成像模式还是PSA水平都不能可靠地预测局部入侵或淋巴结转移.

科学领域:

在瘤学瘤学.
放射学放射学是指放射学
核医学是一种核医学.

背景情况:

精确的前列腺癌 (PCa) 阶段确定对于治疗规划至关重要.
精液囊侵入 (SVI),前列腺外延伸 (EPE) 和淋巴结 (LN) 转移是影响治疗决策的关键病理指标.
评估先进成像技术的诊断性能对于改善PCa分期至关重要.

研究的目的:

为了比较PSMA PET/CT和mpMRI在检测PCa患者SVI,EPE和LN转移中的诊断性能.
评估前列腺特异性抗原 (PSA) 和最大标准化吸收值 (SUVmax) 在预测这些病理结果中的实用性.
为了将成像检测结果与根性前列腺切除术后的组织病理学结果相关联.

主要方法:

对66名接受了手术前PSMA PET/CT和激进前列腺切除术的PCa患者的回顾性分析.
从PSMA PET/CT和mpMRI (在33名患者中可用) 的成像研究结果与他的病理学结果的比较.
对检测SVI,EPE和LN转移的灵敏度,特异性和准确性的计算.
评估PSA,SUVmax和病理结果之间的关系.

主要成果:

对于SVI检测,PSMA PET/CT表现出比mpMRI更高的灵敏度和整体准确性,而mpMRI显示出更高的特异性.
对于EPE,PSMA PET/CT更敏感,mpMRI更具体;预测值相似.
SUVmax和PSA显示出正相关性,但并没有根据SVI,EPE或LN转移显著区分患者.
在PSMA PET/CT上LN吸收与病理学普遍一致,但与SUVmax或PSA没有显著的关联.

结论:

在检测SVI方面,PSMA PET/CT更有效,而mpMRI在EPE方面更为突出.
SUVmax显示了SVI和LN转移检测的近显潜力.
在诊断局部前列腺侵袭或LN转移时,PSA水平没有价值.

关键词:

在PSMA PET/CT中使用.这是一辆SUVmax,SUVmax.转移转移转移转移多个参数的MRI.前列腺癌是前列腺癌.

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