関連する実験動画
Updated: Aug 19, 2026

11:38
Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy
Published on: July 3, 2014
まとめ
入院の胸部X線は,特に症状のない患者では,患者の管理をめったに変更しません. 定期的な胸部X線 (CXRs) は,患者のケアに影響を及ぼさずに60%削減できます.
科学分野:
- メディカルイマージング (医学イメージング)
- クリニカル・マネジメント
- 診断の精度 診断の精度
背景:
- 入院の胸部X線 (CXR) は,一般病棟で頻繁に使用されます.
- すべての入院患者における日常的なCXRの臨床的影響と必要性は,引き続き調査の対象となっています.
研究 の 目的:
- 一般病棟に入院した患者の臨床管理に対する入院時の胸部X線による独立した効果を将来的に評価する.
- 患者の診断,調査,治療計画を変更する際のCXRの効果を決定する.
主な方法:
- 432回連続した全般医療病棟入院の見通し評価.
- 診断,調査,治療を含む臨床データは,CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.CXR.
- CXR後の管理の変化は,患者のプレゼンテーションとCXRの発見に基づいて記録され,分析されました.
主要な成果:
- 432人の患者のうち,226人 (53%) が異常なCXRを持っていたが,CXRの9%だけが管理の変更につながった.
- 心肺疾患の症状のない患者では (n=214),CXRは5%で管理を変えたが,1.4%で改善した.
- 管理の変更は,新しい心呼吸器疾患 (14%) と胸部疾患の可能性 (9%) の患者で最も高かった.
結論:
- 胸部疾患の臨床的証拠のない患者の通常の入院胸部X線は,臨床的利益が最小限である.
- 明確な徴候を有する患者におけるCXRの選択的使用は,検査の数を約60%減らすことができる.
関連する概念動画
X-ray Imaging
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...
Radiological Investigation I: X-ray and CT
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
Radiological Investigation II: MRI and Ventilation Perfusion Scan
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Radiological Investigation III: Pulmonary Angiogram and PET Scan
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...
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...
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 III: X-Ray
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...

