Pulmonary embolism | Radiology Reference Article
网页2024年8月15日 · Pulmonary embolism (PE) refers to partial or complete embolic occlusion of one or more pulmonary arteries, most commonly due to thrombus. PE is apparent as a ventilated perfusion defect on V/Q scan 35 .
CT pulmonary angiogram (protocol) - Radiopaedia.org
网页2024年7月18日 · suspected pulmonary embolism: acute or chronic. pulmonary venous varix assessment. Purpose. This technique is based on the detection of filling defects in the pulmonary arterial vasculature 6, so acquisition at the right time is of vital importance. The study is optimal when the pulmonary arteries are opacified, and the aorta is not.
Pulmonary infarction | Radiology Reference Article - Radiopaedia.org
网页2024年4月27日 · CT. Peripheral wedge-shaped pulmonary consolidations are a classic manifestation of pulmonary infarct, particularly in the setting of a PE. Recognized features include 1,8: wedge-shaped (less often rounded) juxtapleural opacification (Hampton hump) without air bronchograms. consolidation with internal air lucencies, "bubbly consolidation"
Pulmonary hemorrhage | Radiology Reference Article
网页2023年10月11日 · Pulmonary hemorrhage is a rather broad term given to describe any form of bleeding into the lung and can arise from a myriad of causes. In a very traditional sense it is described when the following constellation of clinicoradiological features occurs simultaneously 2 (although this is never an absolute necessity): hemoptysis.
Right heart strain | Radiology Reference Article - Radiopaedia.org
网页2024年6月2日 · Right heart strain can often occur as a result of pulmonary arterial hypertension (and its underlying causes such as massive pulmonary emboli).
Septic pulmonary emboli | Radiology Reference Article
网页2024年5月5日 · Citation, DOI, disclosures and article data. Septic pulmonary emboli refer to the embolization of infectious particles (intravascular thrombus containing microorganisms) into the lungs via the pulmonary arterial system.
Pulmonary embolism | Radiology Case | Radiopaedia.org
网页Case Discussion. Typical appearances of a large pulmonary emboli. The site and number of pulmonary emboli should be described: central, main, lobar, segmental or subsegmental vessels. Associated signs include: straightening of the intraventricular septum from right heart strain or pulmonary infarction.
CT triple-phase liver (protocol) | Radiology Reference Article ...
网页2023年7月29日 · The triple-phase liver CT protocol is a useful examination in the assessment of focal liver lesions, hypervascular liver metastases and endocrine tumors. It involves a dedicated late arterial phase, portal venous phase and delayed phase acquisition.
V/Q scan | Radiology Reference Article | Radiopaedia.org
网页diagnosis of suspected pulmonary embolism, particularly in patients with a contraindication to CTPA (e.g. iodine allergy) monitor pulmonary function following lung transplant. provide preoperative estimates of lung function in lung cancer patients, where …
Mosaic attenuation pattern in lung - Radiopaedia.org
网页2024年7月28日 · Mosaic attenuation is a descriptive term used in describing a patchwork of regions of differing pulmonary attenuation on CT imaging. It is a non-specific finding, although is associated with the following: obstructive small airways disease: low attenuation regions are abnormal and reflect two phenomena occurring at the same time: 1. air ...
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