scholarly journals CT Pulmonary Angiography for Risk Stratification of Patients with Nonmassive Acute Pulmonary Embolism

2020 ◽  
Vol 2 (4) ◽  
pp. e190188
Author(s):  
David C. Rotzinger ◽  
Jean-François Knebel ◽  
Anne-Marie Jouannic ◽  
Ghazal Adler ◽  
Salah D. Qanadli
Keyword(s):  
Pulmonary Embolism ◽  
Risk Stratification ◽  
Acute Pulmonary Embolism ◽  
Pulmonary Angiography ◽  
Ct Pulmonary Angiography

scholarly journals COVID-19-induced vascular angiopathy: CTPA signs in critically ill patients other than acute pulmonary embolism and high-lung opacity scores

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Mohamed Hossameldin khalifa ◽  
Ahmed Samir ◽  
Ayman Ibrahim Baess ◽  
Sara Samy Hendawi
Keyword(s):  
Artificial Intelligence ◽  
Pulmonary Embolism ◽  
Lung Volume ◽  
Acute Pulmonary Embolism ◽  
Pulmonary Angiography ◽  
Vascular Tree ◽  
Ct Pulmonary Angiography ◽  
Artificial Intelligence System ◽  
Intelligence System ◽  
Severity Scores

Abstract Background Vascular angiopathy is suggested to be the major cause of silent hypoxia among COVID-19 patients without severe parenchymal involvement. However, pulmonologists and clinicians in intensive care units become confused when they encounter acute respiratory deterioration with neither severe parenchymal lung involvement nor acute pulmonary embolism. Other radiological vascular signs might solve this confusion. This study investigated other indirect vascular angiopathy signs on CT pulmonary angiography (CTPA) and involved a novel statistical analysis that was performed to determine the significance of associations between these signs and the CT opacity score of the pathological lung volume, which is calculated by an artificial intelligence system. Results The study was conducted retrospectively, during September and October 2020, on 73 patients with critical COVID-19 who were admitted to the ICU with progressive dyspnea and low O2 saturation on room air (PaO2 < 93%). They included 53 males and 20 females (73%:27%), and their age ranged from 18 to 88 years (mean ± SD=53.3 ± 13.5). CT-pulmonary angiography was performed for all patients, and an artificial intelligence system was utilized to quantitatively assess the diseased lung volume. The radiological data were analyzed by three expert consultant radiologists to reach consensus. A low CT opacity score (≤10) was found in 18 patients (24.7%), while a high CT opacity score (>10) was found in 55 patients (75.3%). Pulmonary embolism was found in 24 patients (32.9%); three of them had low CT opacity scores. Four other indirect vasculopathy CTPA signs were identified: (1) pulmonary vascular enlargement (57 patients—78.1%), (2) pulmonary hypertension (14 patients—19.2%), (3) vascular tree-in-bud pattern (10 patients—13.7%), and (4) pulmonary infarction (three patients—4.1%). There were no significant associations between these signs and the CT opacity score (0.3205–0.7551, all >0.05). Furthermore, both pulmonary vascular enlargement and the vascular tree-in-bud sign were found in patients without pulmonary embolism and low CT-severity scores (13/15–86.7% and 2/15–13.3%, respectively). Conclusion Pulmonary vascular enlargement or, less commonly, vascular tree-in-bud pattern are both indirect vascular angiopathy signs on CTPA that can explain the respiratory deterioration which complicates COVID-19 in the absence of severe parenchymal involvement or acute pulmonary embolism.

CT Pulmonary Angiography is the First-Line Imaging Test for Acute Pulmonary Embolism: A Survey of US Clinicians

2006 ◽  
Vol 13 (4) ◽  
pp. 434-446 ◽  
Author(s):  
Clifford R. Weiss ◽  
John C. Scatarige ◽  
Gregory B. Diette ◽  
Edward F. Haponik ◽  
Barry Merriman ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Acute Pulmonary Embolism ◽  
Pulmonary Angiography ◽  
First Line ◽  
Ct Pulmonary Angiography ◽  
Imaging Test ◽  
Line Imaging

Widening of coronary sinus in CT pulmonary angiography indicates right ventricular dysfunction in patients with acute pulmonary embolism

2010 ◽  
Vol 20 (7) ◽  
pp. 1615-1620 ◽  
Author(s):  
Grzegorz Staskiewicz ◽  
Elżbieta Czekajska-Chehab ◽  
Jerzy Przegalinski ◽  
Andrzej Tomaszewski ◽  
Kamil Torres ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Right Ventricular ◽  
Coronary Sinus ◽  
Acute Pulmonary Embolism ◽  
Ventricular Dysfunction ◽  
Right Ventricular Dysfunction ◽  
Pulmonary Angiography ◽  
Ct Pulmonary Angiography

Role of Helical CT Pulmonary Angiography in Risk Stratification for Patients With Pulmonary Embolism

2011 ◽  
Vol 18 (5) ◽  
pp. 230-237
Author(s):  
Thomas H. Urbania ◽  
Michael B. Gotway ◽  
Michael D. Hope ◽  
David M. Naeger ◽  
Karen G. Ordovas ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Risk Stratification ◽  
Helical Ct ◽  
Pulmonary Angiography ◽  
Ct Pulmonary Angiography

scholarly journals Short-term Mortality in Acute Pulmonary Embolism: Clot Burden and Signs of Right Heart Dysfunction at CT Pulmonary Angiography

Radiology ◽  
2012 ◽  
Vol 265 (1) ◽  
pp. 283-293 ◽  
Author(s):  
Alessandro Furlan ◽  
Ayaz Aghayev ◽  
Chung-Chou H. Chang ◽  
Amol Patil ◽  
Kyung Nyeo Jeon ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Acute Pulmonary Embolism ◽  
Pulmonary Angiography ◽  
Ct Pulmonary Angiography ◽  
Short Term ◽  
Right Heart ◽  
Heart Dysfunction ◽  
Short Term Mortality ◽  
Clot Burden ◽  
Right Heart Dysfunction

73. CT pulmonary angiography in patients with suspected acute pulmonary embolism

2000 ◽  
Vol 21 (4) ◽  
pp. 392-393 ◽  
Author(s):  
J. B. Neilly ◽  
J. Davidson ◽  
D. McCarter ◽  
F. W. Poon ◽  
G. H. Roditi ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Acute Pulmonary Embolism ◽  
Pulmonary Angiography ◽  
Ct Pulmonary Angiography
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