scholarly journals Efficacy of High Resolution Magnetic Resonance Imaging in Preoperative Local Staging of Rectal Cancer

2013 ◽  
Vol 22 (2) ◽  
pp. 42-48 ◽  
Author(s):  
Aysun Uçar ◽  
Funda Obuz ◽  
Selman Sökmen ◽  
Cem Terzi ◽  
Özgül Sağol ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Rectal Cancer ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Resonance Imaging ◽  
Local Staging

Potentials of high resolution magnetic resonance imaging versus computed tomography for preoperative local staging of colon cancer

2013 ◽  
Vol 54 (7) ◽  
pp. 722-730 ◽  
Author(s):  
Erik Rollvén ◽  
Torbjorn Holm ◽  
Bengt Glimelius ◽  
Esther Lörinc ◽  
Lennart Blomqvist
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Colon Cancer ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Resonance Imaging ◽  
Local Staging

Preoperative High-resolution Magnetic Resonance Imaging Can Identify Good Prognosis Stage I, II, and III Rectal Cancer Best Managed by Surgery Alone

2011 ◽  
Vol 253 (4) ◽  
pp. 711-719 ◽  
Author(s):  
Fiona G.M Taylor ◽  
Philip Quirke ◽  
Richard J Heald ◽  
Brendan Moran ◽  
Lennart Blomqvist ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Rectal Cancer ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Good Prognosis ◽  
Stage I ◽  
Resonance Imaging

scholarly journals Characteristics and Prognostic Significance of Preoperative Magnetic Resonance Imaging-Assessed Circumferential Margin in Rectal Cancer

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaoji Ma ◽  
Xinxiang Li ◽  
Linghui Xu ◽  
Debing Shi ◽  
Tong Tong ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Rectal Cancer ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Local Recurrence ◽  
Prognostic Significance ◽  
Preoperative Magnetic Resonance Imaging ◽  
Circumferential Margin ◽  
Resonance Imaging ◽  
Preoperative Magnetic Resonance

Purpose. To study the characteristics and prognostic significance of preoperative magnetic resonance imaging- (MRI-) assessed circumferential margin (CRM) in rectal cancer.Methods. Patients underwent preoperative high resolution pelvic MRI, followed by resection of primary tumor. The relationship between MRI-assessed CRM and pathological CRM (pCRM) was studied, and survival analysis was used to determine the prognostic significance of MRI-assessed CRM.Results. Of all the 203 patients, the total accuracy of MRI-assessed CRM for predicting involvement of pCRM was 84.2%, sensitivity was 50%, and specificity was 86.8%. Anterior tumors were more possible to assess involvement of CRM by MRI, while the false positive rate was significantly higher than lateral or posterior tumor (87.5% versus 50%,p=0.0002). The 3-year local recurrence, disease-free survival, and overall survival rates were 35.6%, 58.1%, and 85.2% in patients with involved mrCRM, compared with 8.9%, 78.9%, and 92.3% in patients with clear mrCRM. In multivariate analysis, MRI-assessed CRM found an independent risk factor for local recurrence, with a hazard ratio of 3.49 (p=0.003).Conclusions. High resolution MRI was accurate to assess CRM preoperatively, while anterior tumor should be assessed more cautiously. Involvement of mrCRM was significantly associated with local recurrence regardless of pCRM status.

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