Читать книгу Point-of-Care Ultrasound Techniques for the Small Animal Practitioner - Группа авторов - Страница 85

When reviewing a radiograph, the clinician can become narrow‐sighted by focusing on one area and not looking at the rest of the film. With ultrasound, however, the goal is to focus on one area. Adjust the depth to the area of interest. Filling up the screen with the area of interest will result in a better diagnostic ultrasound image and this strategy is used for detailed parenchymal assessment. However, during AFAST and TFAST target organs are usually reduced to 25–33% of the screen, depending on the target organ and the respective view.

Every sonographer performing ultrasound has a responsibility to know where the ultrasound scale is located; usually values are in centimeters and are displayed along the side of the machine's screen. The awareness of depth within the image is often overlooked by beginning sonographers. However, recognizing depth is of the utmost importance because what looks large on ultrasound may in fact be small. Attention to the centimeter scale on the screen also allows for eyeballing not only the depth but also the dimensions of structures in view.