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Playing on the Short‐axis and Long‐axis TFAST Lines
ОглавлениеIn contrast to many echocardiography courses that begin with the long‐axis cardiac views, we begin TFAST with short‐axis views. Importantly, if the sonographer can grasp the “short‐axis line” and “long‐axis line” concept and fan the probe while staying on these lines, echocardiography views are learned more quickly and acquired more consistently by the noncardiologist sonographer (Figure 5.6). Without even looking at the screen, knowing you are on these TFAST cardiac lines will optimize success. We could literally teach you from across the room, without any screen knowledge, by just seeing whether or not you are maintaining the ultrasound beam on these lines while fanning from the apex to the base on short‐axis, and from side to side on long‐axis using our clockface approach (see Figures 17.25 and 17.26).
Figure 5.5. Anatomy generally better recognized in longitudinal (sagittal) orientation than transverse. In (A) the kidney is generally better recognized and then interrogated by fanning through longitudinal planes than in (B), showing the kidney in less recognizable transverse orientation.
Source: Courtesy of Dr Daniel Rodriguez, Mexico City, Mexico.
Figure 5.6. Short‐axis and long‐axis lines for echo views. If only someone had told me this back in 2005, to religiously keep the probe head parallel to the short‐axis (cardiac) and long‐axis (cardiac) lines while fanning, I would have gained proficiency so much faster. Trust these lines and fan while staying on them to achieve your echo views. We can tell from across the room whether or not you are successful by seeing if you are on these lines using a clockface orientation approach (Figures 17.25 and 17.26). Wander from them and everything gets goofy.
Source: Courtesy of Dr Gregory Lisciandro, Hill Country Veterinary Specialists and FASTVet.com, Spicewood, TX.