Pathophysiology of Congenital Heart Disease in the Adult
Feb 26 2008 flow
Measurement of Qp:Qs in the setting of congenital heart disease
Jun 1 2013 Qp = Pulmonary flow. Qs = Systemic flow. Qp:Qs describes the magnitude of a cardiovascular shunt. Normally = 1:1. Left to right shunts >1.0.
The Adult Patient with Eisenmenger Syndrome: A Medical Update
Abstract: Eisenmenger syndrome is the most severe form of pulmonary Qp:Qs ratio to 4-6-fold) and 1-1.5 cm at ventricular level ... with an ASD.
Atrial Septal Defect in Patients over the Age of Forty Years
Eight patients (13%) exhibited evidence of severe obliterative pulmonary vascular flow ratio (Qp/Qs) was determined in 52 pa-.
Cardiovascular Magnetic Resonance Pocket Guide
Presence and severity of TR. 6. Residual shunting: ASD VSD
Efficacy of treat-and-repair strategy for atrial septal defect with
Jun 15 2021 (ASD) with severe pulmonary arterial hypertension ... pulmonary to systemic blood flow ratio (Qp:Qs)
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Jan 11 2019 ventricular septal defect (VSD)
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Jan 11 2019 ventricular septal defect (VSD)
Cardiac MRI: Part 1 Cardiovascular Shunts
tients with moderate-to-severe renal dysfunc- Keywords: atrial septal defect hemodynamics
What radiologists need to know about the pulmonary---systemic flow
pulmonary---systemic flow ratio (Qp/Qs): What it is how to calculate it
When and how to fix a ‘hole in the heart’: Approach to ASD
A high Qp/Qs ratio The ratio of pul-monary blood flow (Qp) to systemic blood flow (Qs) can be calculated as: In PFO blood can flow only from right to left FIGURE 2 Color Doppler transesophageal echocardiogram images comparing a patent foramen ovale (left image) and secundum atrial septal defect (right image) In the left
What is a normal Qp/Qs ratio?
- flow, the Qp/Qs ratio, is a useful tool for quantifying the net shunt.AQp/Qsratioof1:1is normal and usually indicates that there is no shunting. A Qp/Qs ratio of 1:1 indicates that pulmonary flow exceeds systemic flow and defines a net left-to-right shunt. Similarly, a Qp/Qs ratio of 1:1 indicates a net right-to-left shunt.
What is the AUC of Qp/Qs ratio?
- threshold of a Qp/Qs ratio >1.75:1 (area under curve (AUC) 5 0.99). Quantification of left-to-right shunting can be performed reliably and accurately by PC-MRI and the data
What is the Qp/Qs ratio for right shunting?
- right shunting based on measurements of blood oxyge- nation [5–7]. Interventional closure or corrective surgery is usually indicated in patients with a Qp/Qs ratio >1.5. MRI is a non-invasive method that allows an exact visualisation of cardiac anatomy and an accurate non-
What is Qp and QS in echocardiography?
- Quantification of shunt volumes and of the ratio of flow in the pulmonary (Qp) and systemic circulation (Qs) and assessment of cardiac dilatation as a consequence of volume overload are crucial in the management of patients with left-to-right shunting [1–3]. Transthoracic and transoesophageal echocardiography usually allow exact localisation and
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