Abstract
Point-of-care ultrasound is now widely recognized in clinical settings as a tool that allows symptom or sign-based examination during the diagnosis of critical conditions. As this ultrasound technique is useful for judging physiological conditions very quickly in a real-time fashion, the authors have coined the term “ABCD sonography” for this technique, and they have been conducting educational workshops across Japan. The concept of ABCD sonography is reviewed in this manuscript.
