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頁籤選單縮合
題名 | Role of Triphasic Computed Tomography during Arterial Portography in Distinguishing Pseudolesion and Hepatocellular Carcinoma=三相性經動脈門靜脈肝臟電腦斷層造影在辨別肝細胞癌和假性病灶的角色 |
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作者姓名(中文) | 林勝彥; 黃培青; 吳冠群; 洪建福; 張啟仁; 吳樹鏗; 萬永亮; 呂嘉偉; | 書刊名 | Journal of Radiological Science |
卷期 | 37:1 2012.03[民101.03] |
頁次 | 頁1-10+a8 |
分類號 | 415.5362 |
關鍵詞 | 三相性經動脈門靜脈肝臟電腦斷層造影; 假性病灶; 肝細胞癌; 影像學; |
語文 | 英文(English) |
英文摘要 | To retrospectively evaluate the clinical efficacy of triphasic computed tomography during arterial portography (CTAP) for a pretreatment survey of patients with suspected hepatocellular carcinoma (HCC) and to compare the dynamic image features of HCCs and pseudolesions during triphasic CTAP. Between May 2007 and September 2010, 129 patients with known or suspected HCC underwent triphasic helical computed tomography (THCT) and triphasic CTAP at our institution. The HCC image characteristics and pseudolesion dynamic changes in enhancement, size, shape, and location were reviewed. The sensitivity, positive predictive rate (PPV), and area under the receiver operating characteristic curve of triphasic CTAP were calculated and compared. Of 129 patients, 103 with 184 HCCs and 134 pseudolesions were enrolled. The PPVs for triphasic CTAP and monophasic CTAP were 90.2% and 53.9%, respectively (P < 0.05). During the precontrast phase of triphasic CTAP, low attenuation of HCCs and pseudolesions occurred in 96.3% and 3% of the cases, respectively (P < 0.05). After contrast administration, 133 (99.3%) low-attenuation pseudolesions that appeared during the first phase of CTAP, 66 (49.3%) during the second phase, and 121 (90.3%) during the third phase became iso-attenuated to normal liver parenchyma. The proportion of HCCs with low attenuation during the first, second, and third CTAP phases was 100%, 97.5%, and 97.5%, respectively. During the third phase of triphasic CTAP, low attenuation was more likely associated with HCC than pseudolesions (97.5% vs. 9.7%, P < 0.05). The PPV was significantly increased by triphasic CTAP compared to monophasic CTAP. The dynamic image features of triphasic CTAP are useful for distinguishing pseudolesions from HCC. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。