Читать книгу Point-of-Care Ultrasound Techniques for the Small Animal Practitioner - Группа авторов - Страница 87

Find a happy medium between penetration and resolution. Use the highest frequency (MHz) possible yet still see as deeply as needed. The smaller the patient, the higher the frequency and the larger the patient, the lower the frequency. High MHz provides detail at the expense of penetration and low MHz provides penetration at the expense of detail. In addition to the frequency, the focus position and focus number also have a major impact on the image. Frequency is also affected by presets. Smaller parts, pediatric and smaller abdominal and cardiac presets generally increase the frequency automatically and adult and larger abdominal and cardiac presets decrease the frequency automatically.