Vascular pedicle
Last revised by Francis Deng ◉ on 28 Nov 2019
Citation, DOI, disclosures and article data
Citation:
Amini B, Deng F, Kang O, et al. Vascular pedicle. Reference article, Radiopaedia.org (Accessed on 21 Sep 2023) https://doi.org/10.53347/rID-10064
Permalink:
rID:
10064
Article created:
19 Jun 2010, Behrang Amini
Disclosures:
At the time the article was created Behrang Amini had no recorded disclosures.
View Behrang Amini's current disclosuresLast revised:
28 Nov 2019, Francis Deng ◉
Disclosures:
At the time the article was last revised Francis Deng had no recorded disclosures.
View Francis Deng's current disclosuresRevisions:
14 times, by 8 contributors - see full revision history and disclosures
Systems:
Sections:
Vascular pedicle is bordered on the right by venous structures (right brachiocephalic vein above and superior vena cava) and on the left by an arterial structure (the left subclavian artery origin). The azygos vein (black oval) is seen en face above the right main bronchus.
The vascular pedicle width can help differentiate different forms of pulmonary edema:
- normal or narrowed-capillary permeability pulmonary edema
- normal-acute cardiac failure
- wide-fluid overload or renal failure pulmonary edema and chronic heart failure.
Radiographic features
Plain radiograph
The vascular pedicle width (VPW) is the distance between parallel lines drawn from the point at which the superior vena cava intersects the right main bronchus and a line drawn at the takeoff of the left subclavian artery from the aorta. The mean vascular pedicle width is 38-58 mm on posteroanterior chest radiographs.
References
- 1. Milne EN, Pistolesi M, Miniati M et-al. The vascular pedicle of the heart and the vena azygos. Part I: The normal subject. Radiology. 1984;152 (1): 1-8. Radiology (abstract) - Pubmed citation
- 2. Milne EN, Pistolesi M, Miniati M et-al. The radiologic distinction of cardiogenic and noncardiogenic edema. AJR Am J Roentgenol. 1985;144 (5): 879-94. AJR Am J Roentgenol (abstract) - Pubmed citation
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