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題 名 | Endometrial Carcinoma: Evaluation of Depth of Myometrial Invasion by MR Imaging-Preliminary Report=以磁振造影評估子宮內膜癌對子宮肌層之侵犯--初期報告 |
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作 者 | 許明輝; 王家槐; 劉偉民; 江宏; 張政彥; | 書刊名 | 中華放射線醫學雜誌 |
卷 期 | 23:6 1998.12[民87.12] |
頁 次 | 頁207-210 |
分類號 | 417.281 |
關鍵詞 | 子宮內膜癌; 磁振造影; 腫瘤分期; Uterus; Endometrium; Uterine neoplasm; MR; Staging; |
語 文 | 英文(English) |
中文摘要 | 對子宮內膜癌而言,子宮肌層被侵犯的深淺程度,直接影響淋巴腺轉移機率與整體預後。本文的目的在於研究磁振造影對子宮肌層被侵犯程度之評估上,所能扮演的角色。22例經臨床證實為FIGO第一期之子宮內膜癌患者,接受了包括快速自旋回波T2WI與靜脈注射造影劑後自旋回波T1WI在內的骨盆腔磁振造影檢查。對照磁振造影與病理檢查結果後獲得:整體癌病分期之準確率分別為64%(T2WI)與68%(T2WI+T1WI)。子宮內膜腔的大體積腫瘤,子宮肌層連接區形狀不規則或不明顯,腫瘤與子宮肌層間訊號對比不明顯,微量的子宮肌層侵犯等是造成分期錯誤的諸多因素。對區別表淺(IA+IB期)與深部(IC期)肌層侵犯之準確率皆為85%。據此得知磁振造影對子宮內膜癌之分期仍不失為一可靠的檢查。 |
英文摘要 | The depth of myometrial invasion is closely related to the incidence of lymph node metastasis and prognosis in patients with endometrial carcinoma. The purpose of this study is to assess the role of MR inaging in endometrial cancer, with emphasis on the evaluation of depth of myometrial invasion. Twenty-two women with clinical International Federation of Gynecology and Obstetrics (FIGO) stage I endometrial carcinoma diagnosed by fractional dilatation and curettage (D&C) were referred for preoperative MR study. MR imaging was performed with fast spin echo (FSE) T2-weighted image (T2-WI) and post-enhanced spin echo T1-weighted image (T1WI). Results of MR findings were correlated with histopathologic examination of surgical specimens after abdominal hysterectomy. Accuracy of MR staging of IA, IB and IC disease by T2WI alone and combined readings of T2WI with post-enhanced T1WI were 64% (14/22) and 68% (15/22), respectively. Bulky endometrial tumors, irregular and/or indistinct junctional zones, poor tumor-myometrial contrast and minimal (microscopic) myometrial invasion were the most causes of incorrect MR staging. The accuracy rates for T2WI and the combined reading for differentiating superficial (stage IA+IB) from deep invasive(stage IC) disease were both 85%. Based on this prepliminary study, MR imaging is reliable in differentiating superficial from deep invasive disease in endometrial carcinoma. |
本系統中英文摘要資訊取自各篇刊載內容。