Maruyama Y
Radiology. 1979 Nov;133(2):473-5. doi: 10.1148/133.2.473.
Californium 252 low dose rate intracavitary neutron implants combined with conventional external beam therapy for advanced pelvic tumors produced better local response than 137Cs in pelvic brachytherapy. Greater tumor regression was achieved by applying 252Cf while the maximum amount of tumor was present preceding or shortly after starting external beam therapy (12/14 or 86%). This schedule was more effective than similar neutron doses given after external beam irradiation.
锎252低剂量率腔内中子植入联合传统外照射治疗晚期盆腔肿瘤，在盆腔近距离治疗中比铯137产生更好的局部反应。在开始外照射治疗之前或之后不久肿瘤量最大时应用锎252可实现更大程度的肿瘤消退（14例中的12例，即86%）。该方案比外照射后给予相似中子剂量更有效。
