Atrial septal defect doppler: Difference between revisions
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* Used to demonstrate left to right flow. | * Used to demonstrate left to right flow. | ||
* Effective modality for: | * Effective modality for: | ||
:* Confirmation of a suspected atrial septal defect | :* Confirmation of a suspected atrial septal defect. | ||
:* Estimation of the defect size | :* Estimation of the defect size. | ||
:* Determination of the universal direction of flow across the septum | :* Determination of the universal direction of flow across the [[septum]]. | ||
:* Determination of the usage of percutaneous closure and surgical therapies | :* Determination of the usage of percutaneous closure and surgical therapies. | ||
:* Determination of high velocity flow, useful in patients with restrictive defects, obstructed pulmonary venous return and/or left atrial hypertension | :* Determination of high velocity flow, useful in patients with restrictive defects, obstructed pulmonary venous return and/or left atrial hypertension. | ||
===Disadvantages=== | ===Disadvantages=== | ||
* May show false positive shunting as caval flow and incorrectly set gain may appear as left to right flow. | * May show false positive shunting as caval flow and incorrectly set gain may appear as left to right flow. | ||
* Coloring across the interatrial septum can distort the perception of the shunt flow | * Coloring across the [[interatrial septum]] can distort the perception of the [[shunt]] flow. | ||
* Not effective in determination of sinus venosus defects | * Not effective in determination of sinus venosus defects. | ||
==References== | ==References== |
Revision as of 16:15, 9 January 2013
Atrial Septal Defect Microchapters | |
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Atrial septal defect doppler On the Web | |
American Roentgen Ray Society Images of Atrial septal defect doppler | |
Risk calculators and risk factors for Atrial septal defect doppler | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S. [2], Cafer Zorkun, M.D., Ph.D. [3]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [4]
Doppler
- Used to demonstrate left to right flow.
- Effective modality for:
- Confirmation of a suspected atrial septal defect.
- Estimation of the defect size.
- Determination of the universal direction of flow across the septum.
- Determination of the usage of percutaneous closure and surgical therapies.
- Determination of high velocity flow, useful in patients with restrictive defects, obstructed pulmonary venous return and/or left atrial hypertension.
Disadvantages
- May show false positive shunting as caval flow and incorrectly set gain may appear as left to right flow.
- Coloring across the interatrial septum can distort the perception of the shunt flow.
- Not effective in determination of sinus venosus defects.