Periturnoral rim enhancement of liver metastasis: Hemodynamics observed on single-level dynamic CT during hepatic arteriography and histopathologic correlation
Periturnoral rim enhancement of liver metastasis: Hemodynamics observed on single-level dynamic CT during hepatic arteriography and histopathologic correlation
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DOI：
10.1097/00004728-200211000-00021
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发表时间：
2002-11-01
影响因子：
1.3
通讯作者：
Kadoya, M
中科院分区：
文献类型：
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作者：
Terayama, N;Matsui, O;Kadoya, M
目的：方法：对29例结肠癌肝转移瘤行肝动脉造影时，采用单层面动态CT扫描，在无床饲条件下进行。结果：11例转移瘤为富血供，IS为富血供，10例富血供转移瘤中3例出现早期边缘强化，18例低血供转移瘤中17例出现早期边缘强化（P < 0.01）。瘤周边缘强化的出现时间和厚度与周围肝实质的促纤维增生反应和炎症反应无明显相关性。结论：瘤内和瘤周强化可分为两种类型。瘤周边缘增强被认为主要是由于血流从肿瘤引流到周围的肝实质中的富血供转移或肿瘤周围的动脉-门静脉分流增加的低血供转移。
Purpose: The purpose of this work was to clarify the mechanism of peritumoral rim enhancement of metastatic liver cancer.Method: Twenty-nine liver metastases of colon cancer were examined by single-level dynamic CT during hepatic arteriography, which was performed without table feed. We analyzed these findings and correlated them with the histopathologic findings.Results: Eleven metastases were hypervascular and IS were hypervascular, Early appearance of rim enhancement was seen in 3 of 10 hypervascular metastases and 17 of 18 hypovascular metastases (p < 0.01). The time of appearance and thickness of peritumoral rim enhancement showed no apparent correlation with the desmoplastic reaction or inflammation in the surrounding hepatic parenchyma.Conclusion: Two types of intra- and peritumoral enhancement were observed. Peritumoral rim enhancement was considered to be due mainly to the drainage of blood flow from the tumor to the surrounding hepatic parenchyma in hypervascular metastasis or increased arterioportal shunts surrounding the tumor in hypovascular metastasis.