Sentences with phrase «patients are false positives»

Not exact matches

Though they can't tell for sure from the data, the researchers say this suggest that patients who had the thallium scans were sent for further testing using the invasive angiography technique because the initial scan gave a false positive for serious blockage.

Dr. Catalona, who was the first physician in the U.S. to run the phi test, added, «However, the problem is that higher levels of PSA can also be caused by a benign enlargement or inflammation of the prostate, leading to many false ‐ positives for cancer and ultimately unnecessarily invasive biopsies and an increased potential for patient harm.»

Though the optimal scenario is actually estimated to catch fewer lung cancers than the criteria used in the National Lung Screening Trial (NLST) in the US, the authors predict this more stringent scenario would require fewer CT scans, and lead to fewer false positive screens and lung cancer overdiagnosis, which can lead to patient harm.

The disease is notoriously difficult to diagnose, leading to a large proportion of both false positives — where patients undergo surgery they don't need — as well as false negatives — where appendicitis is mistaken for gas or cramps and left untreated.

False positives were noted for three patients.

On the plus side, Aisner points out, testing via circulating tumor DNA returns very few false - positives — when a test discovers DNA with a cancer - causing genetic change, it is strong evidence that this alteration is, in fact, present in the patient's cancer.

Clinical examination and imaging technologies are critical elements for detecting and diagnosing breast cancer, yet the high rate of false positives and false negatives resulting from these approaches can significantly impact patient care.

And I'm not seeing patients that are at the same level as you know, being an athlete but I do try to keep them 48 hours away from strenuous workout so you don't get those false positives.

He didn't allow me to speak much, but I did get in my favorite argument about scientists needing 95 % certainty to make claim and thus being overly cautious (they need to avoid false positives in order to protect their reputations — which is understandable), while those living in the world (environmentalists, potential victims) would want to follow the «medical model» of avoiding false negatives, and would be concerned about possible problems at a much lower standard of certainty (a doctor would not tell her patient that there is only 94 % certainty the lump is cancerous, so we won't operate).