Systematic Reviews
Copyright ©The Author(s) 2016.
World J Gastroenterol. Oct 7, 2016; 22(37): 8414-8434
Published online Oct 7, 2016. doi: 10.3748/wjg.v22.i37.8414
Table 10 Study definitions of poor response according to magnetic resonance imaging tumour regression grade scales
Ref.YearTRG scale used (histological stage based upon)Scales accurate?Poor response definitionTotal (n)Poor responders (n)Average F/up in monthsLR (%) 5 yrDR (%) 5 yrDFS (%)OS (%)
Shihab et al[52]2011MRI TRG (based on Mandard)YesTRG 4,5371749
Patel et al[5,7]2012MRI TRG (based on Dworak)YesTRG 4,56922
Patel et al[6] and Patel et al[7]2011 and 2012MRI TRG (based on Dworak)YesTRG 4,566346029Yr. 5: 31Yr. 5: 27
Yu[53]2014 (unpublished data from our centre)MRI TRG (based on Mandard and Dworak)YesTRG 4,521085Yr. 3: 52%Yr. 3: 74%
Yu[53]2014 (unpublished data from our centre)MRI TRG (based on Mandard and Dworak)YesTRG 4,515247Yr. 5: 59%Yr. 5: 68%