when in reality, there is no disease. A false positive result is an error, which means the result is not giving you the correct information. As an example of a false positive, suppose ablood testis designed to detectcolon cancer. The test results come back saying a person has colon ...
PHILADELPHIA — Patients with a false-positiveShield testresult did not appear to be at increased risk for non-colorectal cancer malignancies at 1 year compared with those with a true-negative result, according to a presenter here. “Although there are multiple colon ...
By design, screening tests are imperfect—unresponsive to some cancers (false negatives) while occasionally raising suspicion of cancer where none exists (false positives). This pilot study describes patients' responses to having a false-positive screening test for cancer, and identifies screening effect...
The guaiac-impregnated test slide (Hemoccult) used in testing for occult blood in the stool gave a false-positive reaction in a trauma patient when a povidone-iodine antiseptic solution (Betadine) was used prior to the insertion of a urinary catheter. Laboratory testing using serial dilutions of...
Colon polyps/diagnosisColonoscopyDNA/analysisEarly detection of cancerBackground There is uncertainty as to the appropriate follow-up of patients who test positive on multimarker stool DNA (sDNA) testing and have a colonoscopy without neoplasia.Cooper, Gregory S.Markowitz, Sanford D.Chen, ZhengyiTuck...
Silastic injection for vocal fold medialization resulting in a false-positive finding on F18 FDG-PET/CT Other potential causes for false-positive urine pregnancy test results include tubo-ovarian abscess, (6) adenomyosis, (7) and cancers that produce hCG, such as colon, pancreatic, lung, liver,...
To identify false positive genes, we used the bulk DE analysis to exclude genes called as DE at a false discovery rate of 10% from the matched single-cell results, then retained the 100 top-ranked remaining genes in the single-cell data. To identify false negative genes, we used the ...
However, as we implemented multiplex PCR-based NGS to detect mutations in colon and lung cancer specimens, we commonly encountered false-positive mutations, especially in patient samples with low DNA amounts or shallow read depths. This phenomenon occurs uniformly at the 5′ or 3′ end of short...
Gastro-intest Endosc 2003;58:S3-S43.4. Uno Y, Munakata A. The non-lifting sign of invasive colon cancer.Gastrointest Endosc 1994;40:485-9.5. Kitajima K, Fujimori T, Fujii S, et al. Correlations between lymph nodemetastasis and depth of submucosal invasion in submucosal invasivecolorectal ...
The more challenging colon set distinguishes the seven processing methods to a greater extent than the ovary set. Using FDR0 = 0.1 as a reference point, there is roughly 7-fold variation across the seven methods in the number of detected genes in colon data using t-test statistics, while fo...