【经皮穿刺治疗单肾囊肿伴动脉高压1例】。

Revista interamericana de radiologia Pub Date : 1980-01-01

E R Barajas González, A Ruíz Rangel, R Zurita Carrillo, J Macedo Ramírez, M H Bais

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引用次数: 0

摘要

在8 MV x射线下测量肿瘤最大比值和后向散射因子。测量得到的TMR符合经验表达式TMR(t) = K(t) A tm(t)。因此，不同水深的TMR与面积的对数-对数图产生直线，通过外推获得TMRo值(对于0 x 0 cm2的油田)。根据这些值，也可以推导出散射-幻像比。

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[Single renal cyst associated with arterial hypertension treated by percutaneous puncture, report of a case].

Tumor-maximum ratios and back-scatter factors were measured for 8 MV x-rays. The measured TMR's are found to conform to the empirical expression TMR(t) = K(t) A tm(t). Hence, log-log plots of TMR vs. area at various depths in water, yield straight lines from which values of TMRo (for 0 x 0 cm2 field) are obtained by extrapolation. From these values, scatter-phantom ratios are also derived.

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Revista interamericana de radiologia

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