腎臓移植の磁気共鳴動脈造影は,腎臓移植の磁気共鳴動脈造影である
W M Gedroyc1, R Negus, A al-Kutoubi
1Department of Radiology, St. Mary's Hospital, London, UK.
Lancet (London, England)
|March 28, 1992
まとめ
磁気共鳴動脈造影 (MRA) は,腎臓移植患者の腎動脈狭窄を診断するための非侵襲的な代替手段を提供します. この方法は,従来のアニオグラフィと比較して高い精度を示し,移植機能不全の評価に役立ちます.
科学分野:
- ネフロロジーは腎臓科です.
- 放射線学 放射線学
- 血管イメージング 血管イメージング
背景:
- 腎動脈狭窄は,腎臓移植移植移植の機能不全の重要な原因です.
- 静脈内デジタル抽出血管撮影 (IADSA) による従来の診断は侵襲的でリスクが伴う.
研究 の 目的:
- 移植受信者における腎動脈狭窄の診断のためのIADSAの非侵襲的な代替手段として,磁気共振動脈造影 (MRA) を評価する.
- この患者集団におけるMRAとIADSAの診断精度を比較する.
主な方法:
- 50人の腎臓移植患者におけるMRAとIADSAの見通し比較.
- IADSAに対するMRAの感受性と特異性の評価.
- 両方の画像技術による狭窄症の重度の遡及的分類.
主要な成果:
- MRAは,IADSAと比較して83%の感度と97%の特異性を示しました.
- MRA と IADSA の間では,狭窄症の重度の分類において有意な相関関係 (r = 0.74,p < 0.001) が認められた.
- MRAは,腎臓移植動脈の正確な非侵襲的イメージングを提供しました.
結論:
- MRAは,腎臓移植動脈狭窄を評価するための非常に敏感で特定の非侵襲的イメージング技術です.
- MRAは,診断とフォローアップのための侵襲性血管撮影の貴重な代替手段として機能することができます.
- これにより,動脈狭窄による移植機能不全のリスクのある腎臓移植受容者の管理が改善されます.
関連する概念動画
Magnetic Resonance Imaging
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...
Imaging Studies I: CT and MRI
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...
Imaging Studies for Cardiovascular System IV: CMRI
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,...
Imaging Studies IV: Magnetic Resonance Imaging
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
Imaging Studies VII: Vascular Imaging
DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...


