Publication
3D echoendoscopy and miniprobes for rectal cancer staging
| dc.contributor.author | Castro-Poças, F | |
| dc.contributor.author | Dinis-Ribeiro, M | |
| dc.contributor.author | Rocha, A | |
| dc.contributor.author | Araújo, T | |
| dc.contributor.author | Pedroto, I | |
| dc.date.accessioned | 2018-02-04T20:17:58Z | |
| dc.date.available | 2018-02-04T20:17:58Z | |
| dc.date.issued | 2018-01-11 | |
| dc.description.abstract | BACKGROUND: Rectal cancer staging using rigid probes or echoendoscopes has some limitations. The aim of the study was to compare rectal cancer preoperative staging using conventional endoluminal ultrasonography with three-dimensional endoscopic ultrasonography and miniprobes. MATERIALS AND METHODS: Sixty patients were included and evaluated with: a) a conventional echoendoscope (7.5 and 12 MHz); b) miniprobes (12 MHz); and c) the Easy 3D Freescan software for three-dimensional endoscopic ultrasonography. The reference or gold standard was conventional endoluminal ultrasonography in all cases and pathological assessment for those without preoperative therapy. The differences in T and N staging accuracy in both longitudinal and circumferential extension were evaluated. RESULTS: With regard to T staging, conventional endoluminal ultrasonography had an accuracy of 85% (compared to pathological analysis), and the agreement between miniprobes vs conventional endoluminal ultrasonography (kappa = 0.81) and three-dimensional endoscopic ultrasonography vs conventional endoluminal ultrasonography (k = 0.87) was significant. In addition, miniprobes had an accuracy of 82% and three-dimensional endoscopic ultrasonography had a higher accuracy (96%). With regard to N staging, conventional endoluminal ultrasonography had an accuracy of 91% with a sensitivity of 78%. However, the agreement between miniprobes and conventional endoluminal ultrasonography and three-dimensional endoscopic ultrasonography and conventional endoluminal ultrasonography (k = 0.70) was lower. Interestingly, miniprobes had a lower accuracy of 81% whereas three-dimensional endoscopic ultrasonography had an accuracy of 100% without any false negative. No false positives were observed in any of the techniques. Accuracy for T and N staging was not influenced by longitudinal or circumferential extensions of the tumor in all types of endoscopic ultrasonography analyzed. CONCLUSIONS: Miniprobes and especially three-dimensional endoscopic ultrasonography may be relevant during rectal cancer staging | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Rev Esp Enferm Dig. 2018 Jan 11;110. | pt_PT |
| dc.identifier.doi | 10.17235/reed.2018.4453/2016 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.26/20976 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.subject | Neoplasias do Recto | pt_PT |
| dc.subject | Endossonografia | pt_PT |
| dc.subject | Endosonography | pt_PT |
| dc.subject | Rectal Neoplasms | pt_PT |
| dc.subject | Neoplasm Staging | pt_PT |
| dc.title | 3D echoendoscopy and miniprobes for rectal cancer staging | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.volume | 110 | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |