For tumor volume, a negative correlation was detected that resulted in the delay of fibrosis in the rapid formation of tumor matrix (y1.5h = −0.234x + 2.803 and y5h = −0.144x + 1.841); accordingly, a positive correlation was undoubtedly manifested between tracer uptake and FAP expression (y1.5h = 0.020x + 0.663 and y5h = 0.012x + 0.537). The gene discussed is FAP; the disease is neoplasm.