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Imaging Planes
Echocardiography
| Term | Definition |
|---|---|
| LAX Long Axis Plane | Used in the parasternal and apical acoustic windows. Is a longitudinal vertical plane that divides the heart into right and left. Images the aorta, left atrium, left ventricle, interventricular septum and posterior wall of the left ventricle. |
| SAX Short Axis Plane | Used in the parasternal and subcostal acoustic windows. Is perpendicular to the long axis plane. Divides the heart into inferior and superior portions. |
| Four Chamber Plane | Used in the apical and subcostal acoustic windows. Is a vertical plane that is perpendicular to the LAX and divides the heart into anterior and posterior portions. |
| Probe Face | Is in contact with the patient |
| Probe Tail | The end of the probe connected to the cable |
| POM Probe orientation marker | Either a groove or button that marks one edge of the imaging plane. The POM is always displayed to the right of the 2D sector. |
| Probe movement | Actual sliding of the probe on the chest wall along the scan plane |
| Probe tilting | Up and down rocking of the probe from a fixed point on the chest wall |
| Probe angulation | Side to side swinging of the probe from a fixed point on the chest wall, usually medially or laterally. Helpful when trying to center structures of interest within the image display. |
| Probe rotation | Twisting the probe from a fixed position on the chest wall either clockwise or counterclockwise. |