Abstract: To analyze two-phase dynamic CT features of 38 cases with cardiac carcinoma and to assess its usefulness for tumor detection and stages compared with surgical and pathologic findings. The detectablity of two-phase enhanced CT scanning for early and advanced cardiac carcinoma was 80% and 93.3% respectively. The accuracy of TNM stages and predicted surgery was 81.6% and 89.7% respectively. The manifestation of cardiac carcinoma included local or extensive thickening of gastric wall shown moderate or marked heterogeneous enhancement in the first phase (early enhancing phase). However, they shown homogeneous enhancement in the second phase. The results suggest that enhanced dynamic CT scan plays significant role in the diagnosis of cardiac carcinoma. the early enhancing phase scan demonstrates the tumor lesions. and it offers helpful information for selecting the method of therapy.