Clinician skills still the best

Examining patients and taking a medical history are more useful to hospital doctors in diagnosing patients than high-tech scans, according to a study from Israel.

Tests such as CT scans and ultrasounds add to hospital bills, but doctors said that such tests given right after patients showed up in emergency rooms only helped with diagnosis in roughly one of three cases, says the study published in the Archives of Internal Medicine.

There is also research showing that the radiation from multiple CT scans might increase the risk of cancer over the long term.

To see whether such scans were really helpful, researchers led by Ami Schattner of Kaplan Medical Center in Rehovot, Israel, followed all the patients who showed up at the emergency room of a teaching hospital and were subsequently admitted.

"Basic clinical skills remain a powerful tool, sufficient for achieving an accurate diagnosis in most cases," Schattner and his colleagues write.