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題 名 | Noninvasive Imaging Features of Hemangiopericytomas=血管外皮細胞瘤之非侵襲性影像學之特徵 |
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作 者 | 阮春榮; 范洪春; 黃國書; 韓鴻志; 吳清俊; 徐先和; 蕭海松; 梁家斌; | 書刊名 | 醫學研究 |
卷 期 | 20:6 2000.06[民89.06] |
頁 次 | 頁321-332 |
分類號 | 415.641 |
關鍵詞 | 血管外皮細胞瘤; 電腦斷層攝影; 磁振造影; 彩色都卜勒超音波; 血管攝影; Hemangiopericytoma; Computed tomography; CT; Magnetic resonance; MR; Color Doppler ultrasonography; Angiography; |
語 文 | 英文(English) |
中文摘要 | 血管外皮細胞瘤是一種可以侵犯全身各處的血管性腫瘤。本文的目的是針對血管外皮細胞瘤之臨床及影像學之特徵加以分析。本研究包括在十七年間經病理診斷為血管外皮細胞瘤之十八位病患,其中包括九位男性及九位女性,平均年齡為四十八歲。有十位病患曾接受電腦斷層攝影檢查,三位病患曾接受磁振造影檢查,一位病患曾接受彩色都卜勒超音波檢查。我們針對所有的病歷及影像加以回顧和分析。有十二位病患其腫瘤發生於四肢,為所有病患的百分之六十七。有十一位病患於診斷後兩個月至十九年五個月之間死亡,平均為三年,為所有病患的百分之六十一。在電腦斷層攝影方面,有八位病患其腫瘤有清楚的邊緣,有九位病患其腫瘤的密度為異質性的。在靜脈注射對比劑之後所有的腫瘤皆呈現輕微至強烈不等的顯影。有五位病患可於電腦斷層影像上發展有腫瘤壞死的現象,腫瘤出血則見於一位病患。在磁振造影方面,血管外皮細胞瘤在T1及氫核密度為主的影像上呈現中等程度的訊號,而後在T2為主的影像上皆呈現高訊號。此外,三個病患皆呈現無訊號之血管結構。彩色都卜勒超音波成功的診斷出一位病患有腫瘤內動靜脈分流的現象。高血管性質對於診斷血管外皮細胞瘤是非常重要的,而電腦斷層攝影、磁振造影及彩色都卜勒超音波能以非侵襲性的方式提供相關的信息。此外,彩色都卜勒超音波更能顯示出此腫瘤可能出現的動靜脈分流,因而避免在經皮穿刺切片檢查時因傷及大血管而造成大量的出血。 |
英文摘要 | Hemangiopericytomas(HPC) are vascular tumors, which may arise from anywhere of the body. In this article, we analyzed the clinical and imaging features of HPC retrospectively. This study included 18 patients(9 men, 9 women, averaging 48 years) of pathologically confirmed HPC during a period of 17 years. Imaging studies included computed tomography(CT) scans in 10 cases, magnetic resonance(MR) images in 3 and color Doppler ultrasonography(CDU) in one. All medical records and images were reviewed and analyzed. The tumor arose from the extremities in 12 cases(67¢H). Eleven patients(61¢H) expired 2 months to 19 years and 5 months after the initial diagnosis with an average of 3 years. On CT scans, the tumor was well-defined in 8 cases and heterogeneous in 9. All except one showed various degree of enhancement after intravenous administration of contrast. Intratumoral necrosis was evidenced in 5 cases and tumor bleeding was seen in one. On MR images, the tumor showed intermediate signal intensity on T1 or proton density-weighted images and high signal intensity on T2-weighted images. Signal void vascular structures were seen in all of 3 cases. In one case, intratumoral arteriovenous shunting was demonstrated on CUD may provide the preoperative evaluation of the tumor vascularity similar to that of angiography. In addition, CDU may also demonstrate the possible arteriovenous shunting and therefore help avoid injury of large vessels by the needle during a percutaneous biopsy. |
本系統中英文摘要資訊取自各篇刊載內容。