| pubmed-article:8013818 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:8013818 | lifeskim:mentions | umls-concept:C0014245 | lld:lifeskim |
| pubmed-article:8013818 | lifeskim:mentions | umls-concept:C0184511 | lld:lifeskim |
| pubmed-article:8013818 | lifeskim:mentions | umls-concept:C0221198 | lld:lifeskim |
| pubmed-article:8013818 | lifeskim:mentions | umls-concept:C0242485 | lld:lifeskim |
| pubmed-article:8013818 | lifeskim:mentions | umls-concept:C0456389 | lld:lifeskim |
| pubmed-article:8013818 | lifeskim:mentions | umls-concept:C0178706 | lld:lifeskim |
| pubmed-article:8013818 | lifeskim:mentions | umls-concept:C0443131 | lld:lifeskim |
| pubmed-article:8013818 | pubmed:issue | 2 Pt 1 | lld:pubmed |
| pubmed-article:8013818 | pubmed:dateCreated | 1994-7-22 | lld:pubmed |
| pubmed-article:8013818 | pubmed:abstractText | Endoscopic measurement of lesions is of great importance in the design and performance of clinical trials, as, for example, in studies of ulcer disease. Endoscopes are constructed with wide-angle lenses that significantly distort the image by creating a relative compression of points in its periphery. We have recently developed a computer program to correct the distortion of the wide-angle lens. We sought to determine the accuracy of the currently used open-biopsy forceps measurement technique and compare it to that of an image-processing technique designed to correct image distortion. The overall error of the open-biopsy forceps technique using an in vitro ulcer model was under-estimation of lesion size by 41.8% +/- 23.3%. When image processing was used to correct distortion, error was significantly decreased to 1.8% +/- 2.2% (p < 0.05). In vivo measurements were made using an inserted object of known size (coated chewing gum). The mean error of the forceps technique in vivo was 26.5% +/- 5.7% (under-estimation of size), which improved significantly to an error of 2.8% +/- 3.2% (p < 0.05) with the image-processing technique. We conclude that image processing significantly enhances the accuracy of measurement at endoscopy. | lld:pubmed |
| pubmed-article:8013818 | pubmed:commentsCorrections | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:8013818 | pubmed:language | eng | lld:pubmed |
| pubmed-article:8013818 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:8013818 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:8013818 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:8013818 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:8013818 | pubmed:issn | 0016-5107 | lld:pubmed |
| pubmed-article:8013818 | pubmed:author | pubmed-author:KnyrimKK | lld:pubmed |
| pubmed-article:8013818 | pubmed:author | pubmed-author:SmithWW | lld:pubmed |
| pubmed-article:8013818 | pubmed:author | pubmed-author:VakilNN | lld:pubmed |
| pubmed-article:8013818 | pubmed:author | pubmed-author:EverbachE CEC | lld:pubmed |
| pubmed-article:8013818 | pubmed:author | pubmed-author:BourgeoisKK | lld:pubmed |
| pubmed-article:8013818 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:8013818 | pubmed:volume | 40 | lld:pubmed |
| pubmed-article:8013818 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:8013818 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:8013818 | pubmed:pagination | 178-83 | lld:pubmed |
| pubmed-article:8013818 | pubmed:dateRevised | 2006-11-15 | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:meshHeading | pubmed-meshheading:8013818-... | lld:pubmed |
| pubmed-article:8013818 | pubmed:articleTitle | Endoscopic measurement of lesion size: improved accuracy with image processing. | lld:pubmed |
| pubmed-article:8013818 | pubmed:affiliation | Department of Medicine, University of Rochester. | lld:pubmed |
| pubmed-article:8013818 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:8013818 | pubmed:publicationType | In Vitro | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:8013818 | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:8013818 | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:8013818 | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:8013818 | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:8013818 | lld:pubmed |
