Janus C L, Mendelson D S
Department of Radiology, University of Virginia Health Sciences Center, Charlottesville 22908.
Crit Rev Diagn Imaging. 1991;32(2):69-118.
Accurate preoperative assessment of renal and perirenal tumors is crucial in determining the type of therapy and/or in planning the operative approach. Computed tomography has been used extensively to stage renal cancer by defining the extent of disease within and outside the kidney, demonstrating patency of the renal vein and inferior vena cava, and depicting sites of lymph node involvement. Recent studies have shown magnetic resonance imaging to be comparable or superior to computed tomography in staging renal carcinoma. Because of its multiplanar imaging capabilities, MRI has also proven useful in evaluating perirenal masses that may obstruct, displace, or invade the kidney. The advantages and limitations of MRI and CT are discussed and their current roles in the evaluation of renal and perirenal abnormalities are reviewed.
准确的术前评估肾及肾周肿瘤对于确定治疗类型和/或规划手术入路至关重要。计算机断层扫描已被广泛用于肾癌分期，通过确定肾脏内外疾病的范围、显示肾静脉和下腔静脉的通畅情况以及描绘淋巴结受累部位。最近的研究表明，磁共振成像在肾癌分期方面与计算机断层扫描相当或更具优势。由于其多平面成像能力，MRI在评估可能阻塞、移位或侵犯肾脏的肾周肿块方面也已证明很有用。本文讨论了MRI和CT的优缺点，并综述了它们目前在评估肾及肾周异常中的作用。
