Rigid sigmoidoscopy and MRI are not interchangeable in determining the position of rectal cancers

Baatrup, Gunnar; Bolstad, Marte; Mortensen, Jette

doi:10.1016/j.ejso.2009.02.004

Cited by 16 publications

(16 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the rectosigmoid junction in rectal cancer has been defined by the distance from the anal verge during rigid sigmoidoscopy of below 16 cm (UICC TNM classification [25]), of below 15 cm (most European studies [12]), and below 12 cm (in the United States of America [12]). Radiological landmarks (sacral promontory [26] or the S2/S3 [24]) used in the Japanese classification system [12] are not reliable alternatives to rigid sigmoidoscopy [27]. In our opinion, (preoperative) radiotherapy in cancers of the upper third of the rectum is still justified in the case of the tumor touching (<=1 mm) or infiltrating the mesorectal fascia and/or in the case of a cT4 tumor-infiltrating neighboring organs and making complete en bloc resection hazardous.…”

Section: Discussionmentioning

confidence: 98%

Adenocarcinomas of the upper third of the rectum and the rectosigmoid junction seem to have similar prognosis as colon cancers even without radiotherapy, SAKK 40/87

Käser

Froelicher

et al. 2014

Langenbecks Arch Surg

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 98%

Adenocarcinomas of the upper third of the rectum and the rectosigmoid junction seem to have similar prognosis as colon cancers even without radiotherapy, SAKK 40/87

Käser

Froelicher

et al. 2014

Langenbecks Arch Surg

View full text Add to dashboard Cite

show abstract

“…These studies concluded that measurements by both techniques indeed differ significantly and are not interchangeable. 16 – 18 Only one small study by Paparo et al., including 66 patients, concluded that MRI measurements of rectal tumor height correlated well with rigid proctosigmoidoscopy. These authors used the anal verge as a landmark and their levels of agreement were –15.7 cm to 4.7 cm, clearly showing a large variability between the measurements.…”

Section: Discussionmentioning

confidence: 99%

Comparison of MRI and colonoscopy in determining tumor height in rectal cancer

Jacobs

Meek

Heukelom

et al. 2017

United European Gastroenterology Journal

View full text Add to dashboard Cite

Background and aimEndoscopy and magnetic resonance imaging (MRI) are used routinely in the diagnostic and preoperative work-up of rectal cancer. We aimed to compare colonoscopy and MRI in determining rectal tumor height.MethodsBetween 2002 and 2012, all patients with rectal cancer with available MRIs and endoscopy reports were included. All MRIs were reassessed for tumor height by two abdominal radiologists. To obtain insight in techniques used for endoscopic determination of tumor height, a survey among regional endoscopists was conducted.ResultsA total of 211 patients with rectal cancer were included. Tumor height was significantly lower when assessed by MRI than by endoscopy with a mean difference of 2.5 cm (95% CI: 2.1–2.8). Although the agreement between tumor height as measured by MRI and endoscopy was good (intraclass correlation coefficient (ICC) 0.7 (95% CI: 0.7–0.8)), the 95% limits of agreement varied from –3.0 cm to 8.0 cm. In 45 patients (21.3%), tumors were regarded as low by MRI and middle–high by endoscopy. MRI inter- and intraobserver agreements were excellent with an ICC of 0.8 (95% CI: 0.7–0.9) and 0.9 (95% CI: 0.9–1.0), respectively. The survey showed no consensus among endoscopists as to how to technically measure tumor height.ConclusionThis study showed large variability in rectal tumor height as measured by colonoscopy and MRI. Since MRI measurements showed excellent inter- and intraobserver agreement, we suggest using tumor height measurement by MRI for diagnostic purposes and treatment allocation.

show abstract

“…However, rigid straight sigmoidoscopy is an invasive examination and may cause mucosal injury or local bleeding. [20] …”

Section: Discussionmentioning

confidence: 99%

Sphincter-preserving surgery for low-middle rectal cancer

Zhu

Wang

et al. 2017

Medicine

View full text Add to dashboard Cite

show abstract

Rigid sigmoidoscopy and MRI are not interchangeable in determining the position of rectal cancers

Cited by 16 publications

References 12 publications

Adenocarcinomas of the upper third of the rectum and the rectosigmoid junction seem to have similar prognosis as colon cancers even without radiotherapy, SAKK 40/87

Adenocarcinomas of the upper third of the rectum and the rectosigmoid junction seem to have similar prognosis as colon cancers even without radiotherapy, SAKK 40/87

Comparison of MRI and colonoscopy in determining tumor height in rectal cancer

Sphincter-preserving surgery for low-middle rectal cancer

Contact Info

Product

Resources

About