Fishman-Javitt M C, Lovecchio J L, Javors B, Naidich J B, McKinley M, Stein H L
Department of Radiology, North Shore University Hospital, Cornell University Medical College, Manhasset, New York.
Magn Reson Imaging. 1987;5(5):371-80. doi: 10.1016/0730-725x(87)90126-3.
MRI of the perirectal region is facilitated by the superb soft tissue contrast, multiplanar imaging capability, lack of respiratory motion artifact and absence of clip artifact which can hamper visualization by CT scan. MRI provides distinct advantages over CT scanning without the need for ionizing radiation or the injection of intravenous contrast material. This study reviews the findings in 18 consecutive patients with a variety of perirectal pathologies including rectal carcinoma (3), gynecologic neoplasm (8), sacral lesions (2), pelvic arteriovenous malformations (2), inflammatory bowel disease (2), and a pelvic kidney (1). In the perirectal region, MR was useful to show normal tissue planes, benign processes which can mimic neoplasm, intrapelvic extension of malignancy and adenopathy.
直肠周围区域的磁共振成像（MRI）因具有出色的软组织对比度、多平面成像能力、无呼吸运动伪影以及不存在会妨碍CT扫描可视化的金属夹伪影而变得更加容易。与CT扫描相比，MRI具有明显优势，无需电离辐射或注射静脉造影剂。本研究回顾了18例连续患者的检查结果，这些患者患有多种直肠周围疾病，包括直肠癌（3例）、妇科肿瘤（8例）、骶骨病变（2例）、盆腔动静脉畸形（2例）、炎症性肠病（2例）和盆腔肾（1例）。在直肠周围区域，MRI有助于显示正常组织层面、可模仿肿瘤的良性病变、恶性肿瘤的盆腔内扩展以及腺病。
