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. Author manuscript; available in PMC: 2016 Jul 27.
Published in final edited form as: Dis Colon Rectum. 2008 Aug 6;51(11):1641–1648. doi: 10.1007/s10350-008-9420-3

FIGURE 2.

FIGURE 2

A. 60Cu-ATSM-positron emission tomography scan showing a hypoxic tumor (tumor-to-muscle uptake ratio=3.1). The tumor has increased tracer uptake compared with surrounding tissues because the 60Cu-ATSM is reduced and retained more avidly in hypoxic tissues. This tumor did not respond to neoadjuvant chemoradiation therapy. B. 60Cu-ATSM-positron emission tomography scan showing a normoxic tumor (tumor-to-muscle activity ratio= 2.3). This tumor responded to neoadjuvant chemoradiation therapy. The bright spot above the tumor is the bladder.