The Application Value Of 64-slice Spiral CT Perfusion Imaging In The Preoperative Evaluation Of Rectal Cancer

Objective To study the value of 64-Slice spiral CT perfusion imaging parameters in the preoperative assessment of rectal cancer.Method 64 MDCT perfusion imaging wag performed in 30 patients with pathologically verified rectal cancer,all patients underwent preoperative CTPI successfully,and the parameters of individual perfusion imaging were recorded accurately,such as BV PEI PF TTP,determined the final pTNM after surgery and then used for statistical analysis.Results CT perfusion images in 30 patients of rectal cancer were satisfied,in T stage,the difference was statistically significant among perfusion,TTP BV(P<0.01),but not PEI(P>0.05),and as stage increased,TTP,BV increased,perfusion decreased,in lymph node metastasis group,in without lymph node metastasis group,perfusion and BV were more than these in group with lymph node metastasis,and the difference was statistically significant(P<0.05),but TTP,PEI make no sense(P>0.05),in distant metastasis group,PEI and Perfusion in liver metastasis group at the same time less than without distant metastases group,and it made sense(P<0.05),not TTP,BV(P<0.05),in differentiation of the cancer group,of higher degree of differentiation of the tumor,its blood flow more than poorly differentiated tumor,from poor degree to high degree,parameters of Perfusion,TTP gradually increased,and the difference was statistically significant(P<0.05),in lymph node group,Characterized target Perfusion of lymph node metastasis of lymph node had more blood flow than reactive hyperplasia of lymph nodes,the data was statistically difference(P=0.0001),it proved that metastasis have support of blood flow.Conclusions the parameters in cancer patients with CTPI in the preoperative evaluation of rectal cancer has a certain value,make more accurate preoperative evaluation,and thus be able to take a more rational treatment strategies.