Bicuspid aortic stenosis MRI: Difference between revisions
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* Phase velocity mapping helps in measuring the ratio of pulmonary to systemic blood flow (Qp:Qs). | * Phase velocity mapping helps in measuring the ratio of pulmonary to systemic blood flow (Qp:Qs). | ||
==ACC/AHA Guidelines for MRI in Patients with Bicuspid Aortic Valve<ref name="pmid18820172">{{cite journal |author=Bonow RO, Carabello BA, Chatterjee K, de Leon AC, Faxon DP, Freed MD, Gaasch WH, Lytle BW, Nishimura RA, O'Gara PT, O'Rourke RA, Otto CM, Shah PM, Shanewise JS |title=2008 Focused update incorporated into the ACC/AHA 2006 guidelines for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 1998 Guidelines for the Management of Patients With Valvular Heart Disease): endorsed by the Society of Cardiovascular Anesthesiologists, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons |journal=[[Circulation]] |volume=118 |issue=15 |pages=e523–661 |year=2008 |month=October |pmid=18820172 |doi=10.1161/CIRCULATIONAHA.108.190748 |url=http://circ.ahajournals.org/cgi/pmidlookup?view=long&pmid=18820172 |accessdate=2012-04-11}}</ref>== | |||
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===[[ACC AHA guidelines classification scheme#Classification of Recommendations|Class I]]=== | |||
'''1.''' Cardiac magnetic resonance imaging or cardiac computed tomography is indicated in patients with bicuspid aortic valves when morphology of the aortic root or | |||
ascending aorta cannot be assessed accurately by echocardiography. ''([[ACC AHA guidelines classification scheme#Level of Evidence|Level of Evidence: C]])'' | |||
'''2.''' Patients with bicuspid aortic valves and dilatation of the aortic root or ascending aorta (diameter > 4.0 cm*) should undergo serial evaluation of aortic root/ascending aorta size and morphology by echocardiography, cardiac magnetic resonance, or computed tomography on a yearly basis. ''([[ACC AHA guidelines classification scheme#Level of Evidence|Level of Evidence: C]])'' | |||
===[[ACC AHA guidelines classification scheme#Classification of Recommendations|Class IIa]]=== | |||
'''1.''' Cardiac magnetic resonance imaging or cardiac computed tomography is reasonable in patients with bicuspid aortic valves when aortic root dilatation is detected by echocardiography to further quantify severity of dilatation and involvement of the ascending aorta. ''([[ACC AHA guidelines classification scheme#Level of Evidence|Level of Evidence: B]])'' | |||
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<NOWIKI>*</NOWIKI>Consider lower threshold values for patients of small stature of either gender.}} | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
Revision as of 15:39, 11 April 2012
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Bicuspid aortic stenosis Microchapters |
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Bicuspid aortic stenosis MRI On the Web |
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American Roentgen Ray Society Images of Bicuspid aortic stenosis MRI |
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Risk calculators and risk factors for Bicuspid aortic stenosis MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Varun Kumar, M.B.B.S. [2]
Overview
Magnetic resonance imaging can be helpful as a diagnostic tool in conditions where the echocardiographic findings are inconclusive.
Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) can be used as a diagnostic modality in aortic stenosis.
Advantages of using MRI include:
- It can be used in cases where echocardiographic results are inconclusive.
- Helps in measuring heart volumes, blood flow and ventricular wall thickness.
- The magnetic resonance angiography helps in better visualization of heart vasculature.
- Phase velocity mapping helps in measuring the ratio of pulmonary to systemic blood flow (Qp:Qs).
ACC/AHA Guidelines for MRI in Patients with Bicuspid Aortic Valve[1]
| “ |
Class I1. Cardiac magnetic resonance imaging or cardiac computed tomography is indicated in patients with bicuspid aortic valves when morphology of the aortic root or ascending aorta cannot be assessed accurately by echocardiography. (Level of Evidence: C) 2. Patients with bicuspid aortic valves and dilatation of the aortic root or ascending aorta (diameter > 4.0 cm*) should undergo serial evaluation of aortic root/ascending aorta size and morphology by echocardiography, cardiac magnetic resonance, or computed tomography on a yearly basis. (Level of Evidence: C) Class IIa1. Cardiac magnetic resonance imaging or cardiac computed tomography is reasonable in patients with bicuspid aortic valves when aortic root dilatation is detected by echocardiography to further quantify severity of dilatation and involvement of the ascending aorta. (Level of Evidence: B) *Consider lower threshold values for patients of small stature of either gender. |
” |
References
- ↑ Bonow RO, Carabello BA, Chatterjee K, de Leon AC, Faxon DP, Freed MD, Gaasch WH, Lytle BW, Nishimura RA, O'Gara PT, O'Rourke RA, Otto CM, Shah PM, Shanewise JS (2008). "2008 Focused update incorporated into the ACC/AHA 2006 guidelines for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 1998 Guidelines for the Management of Patients With Valvular Heart Disease): endorsed by the Society of Cardiovascular Anesthesiologists, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons". Circulation. 118 (15): e523–661. doi:10.1161/CIRCULATIONAHA.108.190748. PMID 18820172. Retrieved 2012-04-11. Unknown parameter
|month=ignored (help)