SciELO - Scientific Electronic Library Online

 
vol.110 número5Coledocoduodenostomía guiada por ultrasonografía endoscópica ante fallo o imposibilidad de CPREFecal microbiota transplantation in refractory or recurrent Clostridium difficile infection: a real-life experience in a non-academic center índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Revista Española de Enfermedades Digestivas

versión impresa ISSN 1130-0108

Resumen

CASTRO-POCAS, Fernando et al. 3D echoendoscopy and miniprobes for rectal cancer staging. Rev. esp. enferm. dig. [online]. 2018, vol.110, n.5, pp.306-310. ISSN 1130-0108.  https://dx.doi.org/10.17235/reed.2018.4453/2016.

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.

Palabras clave : Human colon; Miniprobes; Endoscopic Ultrasonography; Intestinal wall.

        · texto en Inglés     · Inglés ( pdf )