Echography is a medical term used to describe an ultrasound examination. However, there are several other synonyms that can be used to refer to the same procedure, such as sonography, ultrasonography, and diagnostic sonography. These terms are often used interchangeably within the medical community and refer to the use of high-frequency sound waves to create an image of internal body structures. Additionally, other related terms include echocardiography, which refers specifically to ultrasound testing of the heart, and obstetric ultrasound, which is used to monitor fetal development during pregnancy. Overall, the use of these synonyms helps ensure clear and accurate communication among doctors, medical professionals, and patients.