Fig. 1

CT images of the abdomen and pelvic cavity in a patient with recurrent ovarian cancer and metastases (case 1). Recurrent nodules and masses in the pelvic cavity, multiple metastatic nodules in the right para colonic sulcus, splenic hilum and hepatic parenchyma, and metastatic lymph nodes in the hepatic portal area and the upper middle abdominal peritoneum. (a) CR image showed that the intra-abdominal metastatic nodules had strong stereo effects. The relationship between the lesions and peritoneum and colonic adhesions was clear. Metastatic lymph nodes showed a higher brightness of white because of calcification, while the soft-tissue components around the calcified lesions were also demonstrated clearly. (b) The MPR image showed the overall view of the lesions similar to that of CR, but the gray-level image was less detailed and lacked a better texture. The relationship between the metastatic lymph nodes and the adjacent duodenum and the abdominal vessels was not clear. (c) Because of the close density between the metastases and the gastrointestinal tract in the VR image, the lesions can hardly be distinguished. The display effect for other structures in the abdominal cavity was also poor