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目的 探讨螺旋CT(SCT)增强扫描对腹膜转移瘤的诊断价值。方法 经手术病理证实为腹膜转移瘤的患者 38例 ,术前 1周内行全腹CT平扫及SCT增强扫描。分析CT扫描所见 ,并与手术病理所见进行对照。结果 在SCT增强早期 ,大多数腹膜转移瘤表现出不同程度的强化 ;目测原发肿瘤与转移灶有相同程度的强化 ;对血供丰富的肿瘤 ,SCT增强扫描可显示 2mm的种植灶。CT平扫及SCT增强扫描对腹膜转移瘤总的敏感性分别为 4 6 .7%和 76 .6 % (P <0 .0 0 5 ) ,对附件、膈下、小肠系膜、横结肠系膜与大网膜 ,SCT增强扫描对腹膜转移瘤的检出率 >83%。结论 SCT增强扫描诊断腹膜转移瘤优于CT平扫 ,是诊断腹膜转移瘤有效的影像检查方法。
Objective To investigate the value of spiral CT (SCT) in the diagnosis of peritoneal metastases. Methods Thirty-eight patients with peritoneal metastases confirmed by surgery and pathology were examined by whole-body CT scan and SCT scan within one week before operation. Analysis of CT scan seen, and with surgical pathology see control. Results In the early stage of SCT enhancement, most of the peritoneal metastases showed different degrees of enhancement. The visualization of primary tumors and metastases were enhanced to the same extent. For blood-rich tumors, SCT enhanced scan showed 2mm of implantation sites. The total sensitivity of CT scan and SCT scan to peritoneal metastases were respectively 46.7% and 76.6% (P <0.05), and the sensitivity of accessory, subphrenic, small mesentery, transverse mesocolon With the omentum, SCT enhanced peritoneal metastases detection rate of> 83%. Conclusions SCT enhanced scan is superior to CT scan in the diagnosis of peritoneal metastases, which is an effective imaging method for the diagnosis of peritoneal metastases.