- Use of a β-hCG discriminatory zone with bedside pelvic ultrasonographyRalph Wang
Department of Emergency Medicine, University of California, San Francisco, San Francisco, CA, USA
Ann Emerg Med 58:12-20. 2011..We seek to assess the performance of the β human chorionic gonadotropin (β-hCG) "discriminatory zone" when using bedside pelvic ultrasonography in the evaluation of symptomatic pregnant emergency department (ED) patients...
- Differential use of diagnostic ultrasound in u.s. Emergency departments by time of dayJOHN C STEIN
University of California, San Francisco
West J Emerg Med 12:90-5. 2011..Survey data over the last several decades suggests that emergency department (ED) access to diagnostic ultrasound performed by the radiology department is unreliable, particularly outside of regular business hours...
- Emergency physician ultrasonography for evaluating patients at risk for ectopic pregnancy: a meta-analysisJOHN C STEIN
Department of Emergency Medicine, University of California, San Francisco, CA 94143, USA
Ann Emerg Med 56:674-83. 2010..We present a meta-analysis of the use of emergency physician ultrasonography in the evaluation of patients at risk of ectopic pregnancy...