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相关概念视频

Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

127
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
127

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相关实验视频

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A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound
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常规的前列腺活检在冷治疗后不需要,如果监视MRI是正常的.

Herbert Lepor1, Jesse Persily1, Samuel Parry1

  • 1Department of Urology, NYU Grossman School of Medicine, New York, NY, USA.

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概括

在焦点治疗后,磁共振成像 (MRI) 可见的前列腺癌不太可能比MRI隐形癌症具有临床意义. 在大多数阴性MRI病例中,避免活检可以降低监测成本和发病率.

关键词:
磁力共振成像看不见的前列腺癌磁力共振成像可见的前列腺癌.焦点治疗焦点治疗mpMRI 的时间.部分腺体冷藏剥离部分腺体冷藏剥离前列腺癌是前列腺癌.前列腺癌的疾病复发复发.

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科学领域:

  • 泌尿器科 泌尿器科 泌尿器科 泌尿器科
  • 在瘤学瘤学.
  • 放射学 放射学是一门学科.

背景情况:

  • Ablative焦点疗法 (AFT) 是中等风险前列腺癌 (PCa) 的一种选择.
  • 治疗后的监测策略,包括MRI和活检,对于监测复发至关重要.
  • 区分MRI可见 (MRIv) 和MRI不可见 (MRIi) 癌症对于风险分层很重要.

研究的目的:

  • 为了比较MRIv与MRIi前列腺癌的检测率和病理特征.
  • 评估AFT后检测到的癌症的临床意义.
  • 评估MRI研究结果对监测策略的影响.

主要方法:

  • 对305名接受初级部分腺缩术 (PPGCA) 的男性进行了回顾性分析,以中等风险的PCa.
  • 纳入标准:MRI PI-RADS 2-5,单边中等风险疾病,没有粗额外前列腺延伸,没有相反的显著疾病,和≥6个月的随访.
  • 6,24,42,60个月进行的MRI;根据不断变化的标准进行活检;Gleason模式4 (GP4) 定义了临床显著的PCa复发 (csPCaR).

主要成果:

  • 在665个治疗后的MRI中,13.1%为csPCaR阳性.
  • 临床显著的PCa检测率 (csPCaDR) 为阳性MRI的43.5%和阴性MRI的10.6%.
  • 平均GP4长度为MRIv的2.6毫米,而MRIi csPCaR的0.6毫米 (P=0.08).
  • 通过持续的积极监测,MRIi csPCaRs更有可能得到管理 (44%对MRIv的14%,P=0.03).

结论:

  • 在PPGCA之后的MRI隐形癌症不太可能具有临床意义.
  • 在大多数负的MRI病例中,避免活检可以安全地降低监测成本和发病率.
  • 这种方法支持一个更为量身定制的监测策略后焦点治疗.