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Watch & Wait Rectal Report Assistant

Select the T2W and DWI findings; the tool returns the complete / near-complete / incomplete response.

Based on the Memorial Sloan Kettering Cancer Center watch-and-wait MRI regression schema (as provided). Interpret with multidisciplinary review.

MRI Findings

pick the finding that best matches each component

MRI — T2W —

T2-weighted

Wall / scar T2 signal

Lymph nodes

MRI — DWI —

Diffusion-weighted

High b-value (B800–B1000)

ADC map

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MRI response

Select findings for both sequences.

Copy to report

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Show MSK watch-and-wait regression schema (reference)

Note: the ADC "Complete response" wording is shown corrected to "Lack of low signal on ADC map". The source prints "Lack of or low signal," which conflicts with low ADC signal denoting residual tumor.

Assessment	Complete response	Near-complete response	Incomplete response
Endoscopy (clinical ref.)	Flat white scar; telangiectasia; no ulcer; no nodularity	Irregular mucosa; small mucosal nodules or minor abnormality; superficial ulceration; mild persisting erythema of the scar	Visible tumor
Digital rectal exam (clinical ref.)	Normal	Smooth induration or minor mucosal abnormalities	Palpable tumor nodules
MRI — T2W	Only dark T2 signal, no intermediate T2 signal AND no visible lymph nodes	Mostly dark T2 signal, some remaining intermediate signal AND/OR partial regression of lymph nodes	More intermediate than dark T2 signal, no T2 scar AND/OR no regression of lymph nodes
MRI — DWI	No visible tumor on B800–B1000 AND/OR lack of low signal on ADC map (uniform linear wall signal above tumor is OK)	Significant regression of signal on B800–B1000 AND/OR minimal or low residual signal on ADC map	Insignificant regression of signal on B800–B1000 AND/OR obvious low signal on ADC map