The Effectiveness Evaluation Of Diagnosis The Liver Carcinoma Of Cirrhosis Background By CT,MRI Examination

Objective To research the enhancement characteristics between the dynamic MR and 64-slice MDCT scan on the background of small hepatocellular carcinoma (HCC)with liver cirrhosis, and compare the diagnosis advantages and disadvantages between the both Image technique on HCC with liver cirrhosis. Methods To retrospective study 68 patients who dianosised small hepatocellular carcinoma with liver cirrhosis background, and everyone cheched by both spiral CT and MR dynamic enhancement scan. The scan parameters dual source 64-slice spiral CT machine (SIEMENS):slice thickness 7mm, pitch 3; enhanced three scan phase after normal scan, each phase is: pulse of the scan (after inject contrast agent 25-30s), portal phase (after inject contrast agent 50-60s) and the extension period (after inject contrast agent 120-180s). The MR checked by conventional spin-echo sequences (T1WI, T2WI), LAVA sequence enhanced multiphase scan. All the phases images independent analysis by two deputy doctors who unknown the pathology results, and determine the number of tumor lesions, size, and enhanced characters. And discuss together when the views is different until the two the same on the same cases. The statistical method isχ2 test. Results All 68 patients were detecte 89 lesions, and 31 lesions is <3cm (small HCC), The MRI detection rate is 90.32% (28/31), and MDCT is 67.74%(21/31); and statistical analysis byχ2 test, p<0.05, The comparison is significantly between the two methods . For the 89 lesions, the detection rates of dynamic MR and spiral CT multi-phase scan are 94.38% and 87.6%, and the accuracy rate are 87.64% and 89.89%, respectively; statistical analysis byχ2 test, p<0.05, the difference was significance. Conclusion The dynamic MR and spiral CT scans all can show the enhanced features of HCC, and with the signal features by LAVA sequence. The MR is superior to MDCT in the detection rate,accuracy,the cancer capsule,vessels especially in the small lesions show and diagnosis. Objective To research the enhancement characteristics between the dynamic MR and 64-slice MDCT scan on the background of small hepatocellular carcinoma with liver cirrhosis (SHCC),and discuss the reasons about the MRI better than CT. Methods To retrospective study 28 small hepatocellular carcinoma liver cirrhosis background patients, and everyone cheched by both spiral CT and MR dynamic enhancement scan. The scan parameters dual source 64-slice spiral CT machine (SIEMENS):slice thickness 7mm, pitch 3; enhanced three scan phase after normal scan, each phase is: pulse of the scan (after inject contrast agent 25-30s), portal phase (after inject contrast agent 50-60s) and the extension period (after inject contrast agent 120-180s). The MR checked by conventional spin-echo sequences (T1WI, T2WI), LAVA sequence enhanced multiphase and conventional enhanced scan. All the phases images independent analysis by two deputy doctors who unknown the pathology results, and determine the number of tumor lesions, size, and enhanced characters. And discuss together when the views is different on the same cases. The statistical method isχ2 test. Results There are 31 lesions of 28 patients, the smallest lesions is 0.35cm by MRI multi-phase dynamic scan,the smallest lesions is 0.35cm by CT multi-phase dynamic scan;MR and CT scans were detection rates were 90.32%,and 67.74%。The statistic between the two methods was significantly (χ2=4.769, p<0.05). Conclusion The both of dynamic MR and spiral CT multi-phase scan can show the enhanced features of SHCC. and theMR Multi-phase dynamic scanning can detect the smallest leison better than CT.And MR is better than CT.