A Study on the Displacements of the Clips in Surgical Cavity for External-beam Partial Breast Irradiation after Breast-conserving Surgery Based on 4DCT
作者： Suzhen WANG , Jianbin LI , Wei WANG , Yingjie ZHANG , Fengxing LI
DOI: 10.1269/JRR.11131
关键词:
摘要: To explore the clip and geometrical center displacements based on four-dimensional computed tomography (4DCT) for external-beam partial breast irradiation (EB-PBI), fourteen cancer patients treated with breast-conserving surgery were recruited EB-PBI undertook 4DCT simulation during free breathing. The of selected clips at left-right (LR), anterior-posterior (AP) superior-inferior (SI) directions measured. comparison correlation displacement between geometric analyzed. in AP SI greater than that LR same (P < 0.05). Almost all direction, 0.05), except lower direction. showed a statistical upper direction (both P Therefore, internal margin should be purpose adequate target coverage sparing more normal tissue. This study also indicates single was not qualified to substitute surgical cavity.
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