Densitometric CT evaluation of acute and chronic thromboembolic filling defects of the pulmonary arteries before and after contrast injection.

La Radiologia medica
F De LucaMaurizio Zompatori

Abstract

The aim of this study was to assess the baseline computed tomography (CT) attenuation of acute and chronic pulmonary thromboemboli, their contrast enhancement (CE), correlation with haematocrit (Ht) levels and the presence of hypertrophic bronchial arteries. From January 2006 to October 2009, we measured the baseline and postcontrast attenuation values of acute pulmonary thrombi emboli on CT angiograms of 86 patients with acute pulmonary embolism (PE) and those of chronic thrombi in 29 patients with pulmonary hypertension of various origins. The attenuation of acute thrombi was correlated with Ht and CE of chronic thrombi with the presence of hypertrophic bronchial arteries. Acute emboli had a mean baseline attenuation of 54.9 Hounsfield units (HU) and showed no CE. The attenuation of acute thrombi was not dependent on Ht. Chronic thrombi had a mean baseline attenuation of 33.8 HU, and 54% of thrombi showed significant CE. In 57% of cases, a collateral circulation had developed. In 76.5% of cases, CE and hypertrophic bronchial arteries coexisted (p=0.026). Neither thrombotic CE nor bronchial artery hypertrophy predominated in any one of the diseases associated with chronic thrombosis. Before contrast administration, acute embol...Continue Reading

References

Jan 1, 1975·Progress in Cardiovascular Diseases·J E Dalen, J S Alpert
Jan 1, 1990·The American Review of Respiratory Disease·K M Moser
Oct 1, 1984·AJR. American Journal of Roentgenology·S J SwensenD H Stephens
Aug 1, 1984·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·S K JindalJ Butler
Jan 1, 1995·Chest·C GiuntiniA Palla
Apr 12, 2000·The European Respiratory Journal·P F FedulloR N Channick
May 23, 2003·AJR. American Journal of Roentgenology·Jeffrey P KanneEric J Stern
Oct 3, 2003·Trends in Cardiovascular Medicine·Nicanor I Moldovan, Takayuki Asahara
Jan 25, 2005·Journal of Computer Assisted Tomography·Rocco CobelliCarla Marcato
Apr 19, 2005·Radiology·Conrad WittramJo-Anne O Shepard

❮ Previous
Next ❯

Citations

Jun 27, 2013·La Radiologia medica·Domenico AttinàMaurizio Zompatori
Nov 9, 2016·AJR. American Journal of Roentgenology·Emre UnalOrhan Macit Ariyurek
Apr 23, 2019·Journal of Thoracic Imaging·Justin T StowellChristopher M Walker

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cardiomyopathy

Cardiomyopathy is a disease of the heart muscle, that can lead to muscular or electrical dysfunction of the heart. It is often an irreversible disease that is associated with a poor prognosis. There are different causes and classifications of cardiomyopathies. Here are the latest discoveries pertaining to this disease.

Related Papers

American Journal of Respiratory and Critical Care Medicine
Magdalini StratikiGeorgios T Stathopoulos
Radiology
Rocco CobelliGabriele Levrini
The International Journal of Cardiovascular Imaging
Simon SunBenoît Mesurolle
© 2021 Meta ULC. All rights reserved