Nishimura K, Okada Y, Takeuchi H, Miyakawa M, Okada K, Yoshida O, Nishimura K
Hinyokika Kiyo. 1987 Feb;33(2):210-8.
Magnetic resonance imaging (MRI) was performed on 49 urological tumors (11 renal cell carcinomas, 3 renal pelvic cancers, 2 renal angiomyolipomas, 1 renal leiomyosarcoma, 1 large renal cyst, 4 adrenal tumors, 11 bladder cancers, 2 bone metastasis from bladder cancer, 10 prostatic cancers, 1 prostatic sarcoma, 1 urethral cancer, 1 penile cancer and 1 perivesical granuloma) since October 1985 to September 1986. MRI was performed using a Signa (G.E.) with a 1.5T superconductive magnet and 3 images, including T1 weighted image, T2 weighted image, and proton density image, were obtained. In conclusion MRI is a noninvasive examination and gives more information than computed tomography despite its high cost. In renal cell carcinoma, the chemical shift in MRI and clear visualization of tumor thrombus enable accurate staging. Differential diagnosis from other renal mass lesions may be possible by the T2 weighted image. In adrenal disease, most of the adrenal masses can be differentiated, but in some cases it is impossible. In bladder cancer, wall invasion of tumor may be evaluated in T2 weighted image, and MRI is suitable for staging of locally advanced tumor. In prostatic cancer, visualization of periprostatic plexus and differentiation between internal and external gland may enable local staging and identification of low stage tumors.
自1985年10月至1986年9月，对49例泌尿系统肿瘤（11例肾细胞癌、3例肾盂癌、2例肾血管平滑肌脂肪瘤、1例肾平滑肌肉瘤、1例巨大肾囊肿、4例肾上腺肿瘤、11例膀胱癌、2例膀胱癌骨转移、10例前列腺癌、1例前列腺肉瘤、1例尿道癌、1例阴茎癌和1例膀胱周围肉芽肿）进行了磁共振成像（MRI）检查。使用带有1.5T超导磁体的Signa（通用电气公司）进行MRI检查，获得了包括T1加权像、T2加权像和质子密度像在内的3幅图像。总之，MRI是一种无创检查，尽管成本高昂，但比计算机断层扫描能提供更多信息。在肾细胞癌中，MRI的化学位移和肿瘤血栓的清晰显示有助于准确分期。通过T2加权像可能对其他肾脏肿块病变进行鉴别诊断。在肾上腺疾病中，大多数肾上腺肿块可以鉴别，但在某些情况下则无法做到。在膀胱癌中，可在T2加权像上评估肿瘤的壁浸润情况，MRI适用于局部晚期肿瘤的分期。在前列腺癌中，前列腺周围丛的显示以及内外腺的区分有助于局部分期和低分期肿瘤的识别。
