Table 1.

Definition of study type

Study type	Definition
Pelvic	Pelvic US examination of the uterus and overies in patients known or presumed to be HCG negative
Second/third trimester pregnancy	Fetal and uterine examination of patients known or deemed to be in their second/third trimester of pregnancy
First trimester pregnancy	Fetal, Uterine, and ovarian examination of patients known or deemed to be in their first trimester of pregnancy
RUQ	Right upper quadrant US, carried out for suspected hapatobiliary disease
IP fluid	Intraperitoneal fluid analysis carried out for nontraumatic evaluation of ascites or abdominal distention
ECHO	Echo-cardiographic evaluation of the heart, nontraumatic
FAST	Focused assessment for sonography in trauma
Renal/bladder	Reanal and bladder US
Interventional	Interventional US for line placement, drainage of fluid/ascess collection, and fracture reduction
IT fluid	Evaluation of nontraumatic intrathoracic fluid collection. Noninterventional
Vascular	Vascular US for evaluation of arterial and venus aneurysm, thrombosis and anatomy. Noninterventional
Other	All other indications and use of US imaging.