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相关概念视频

Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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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...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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Magnetic Resonance Imaging01:24

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Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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前列腺MRI是负的-接下来是什么?

Tyler M Seibert1,2,3

  • 1Department of Radiation Medicine and Applied Sciences, UC San Diego School of Medicine, La Jolla, California.

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
|May 1, 2024
PubMed
概括

在PSA水平升高后进行无疑前列腺MRI (nMRI) 的男性面临更高的前列腺癌风险. 仔细的随访,将MRI发现与年龄和PSA密度等风险因素相结合,对于平衡错过诊断和过度诊断至关重要.

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科学领域:

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

背景情况:

  • 前列腺MRI (磁共振成像) 越来越多地用于评估男性前列腺特异性抗原 (PSA) 水平升高的情况.
  • 毫无疑问的MRI可以帮助许多男性避免立即进行前列腺活检.
  • 对于没有怀疑的MRI患者,最佳的随访策略尚不清楚.

研究的目的:

  • 调查临床显著的前列腺癌 (csPCa) 和临床无意义的前列腺癌 (ciPCa) 的发生率,在没有怀疑的MRI (nMRI) 患者中.
  • 为了将这种nMRI组的癌症发病率与一般人群进行比较.
  • 为接受nMRI患者的后续策略提供信息.

主要方法:

  • 由于临床怀疑csPCa,转诊前列腺MRI的患者的回顾性分析.
  • 识别没有怀疑的MRI (nMRI) 患者.
  • 在nMRI队列中的csPCa和ciPCa发病率与芬兰普通人口的比较.

主要成果:

  • 与一般人群相比,接受nMRI的患者被诊断患有csPCa的可能性大约是3.4倍.
  • 与一般人群相比,接受nMRI的患者被诊断患有ciPCa的可能性大约是8.2倍.
  • 该研究突出显示,nMRI患者的前列腺癌显著和不显著的风险显著增加.

结论:

  • 没有怀疑的前列腺MRI患者需要仔细跟踪,因为csPCa和ciPCa的发病率增加.
  • 为了平衡遗漏cspca和过度诊断的风险,需要将MRI发现与其他风险因素 (如年龄和PSA密度) 整合起来.
  • 多变量模型和定量成像/病理学可能有助于在nMRI后进行个性化风险评估和管理.