针对急性尾炎的开放式12分钟MRI查:对诊断准确性的五年回顾性观察研究
Andrew Owen Jones1, James Nol1,2
1Medical Imaging Department Blacktown Mount Druitt Hospitals, Blacktown Hospital, 18 Blacktown Road, Blacktown, Sydney, NSW 2148, Australia.
Journal of clinical medicine
|December 17, 2024
概括
开放式,无对比度的MRI对于诊断急性尾炎 (AA) 是非常准确的. 这种快速序列成像协议提供了卓越的灵敏度和特异性,使其成为急诊室患者的可靠选择.
科学领域:
- 放射学 放射学是一门学科.
- 诊断成像 诊断成像 诊断成像
- 紧急医疗 紧急医疗
背景情况:
- 急性尾炎 (AA) 是一个常见的手术紧急情况.
- 在AA的诊断挑战可能导致延迟和并发症.
- 非对比的MRI提供了一个无辐射成像替代方案.
研究的目的:
- 为了评估开放式访问,快速序列,非对比性MRI的诊断准确性.
- 评估这种MRI协议在紧急情况下的可行性和可靠性.
- 为了确定其作为一线成像模式的适用性.
主要方法:
- 追溯观察研究3478个ED转诊的疑似AA.
- 使用了一个12分钟的,无对比的MRI协议,可在开放访问基础上使用.
- 将MRI报告与AA的确定的医疗记录发现进行了比较.
- 评估报告的可用性,交付时间和诊断性能指标.
主要成果:
- 对AA的高诊断准确性:98%的灵敏度,98%的特异性,98%的准确性.
- 快速报告:74%的报告在2小时内完成,94%在4小时内完成.
- 在关键子组中表现出色:15-19岁女性的准确率为98%,孕妇的准确率为99%.
- 高负预测值 (99%) 不包括AA.
结论:
- 快速序列,无对比的MRI协议是准确的诊断AA.
- 它是适合和可靠的首次成像选择,适用于儿科,年轻成人和孕妇.
- 这种MRI方法避免了辐射暴露和需要静脉注射对比剂.
更多相关视频
相关概念视频
Appendicitis-II: Diagnostic Studies and Management
64
Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
64
Magnetic Resonance Imaging
4.9K
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...
4.9K
Appendicitis-I: Introduction
88
The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
88
Imaging Studies I: CT and MRI
193
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...
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...
193
Imaging Studies for Cardiovascular System IV: CMRI
4
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
4


