2C03-Brachytherapy:  LDR/HDR, Dosimetry, Imaging Applications and New Developments

Bhudatt R. Paliwal, PhD

Human Oncology & Medical Physics

University of Wisconsin

Madison, WI  53792

In the last decade the field of Brachytherapy has gone through a significant change.  The conventional therapy, it’s dosimetric principles and source specifications have changed.  The technology has evolved to perform the procedure in a semi automatic manner with remote after loading or treatment delivery processes.  In many applications low dose rate brachytherapy (LDR) has been replaced with high dose rate (HDR) procedures.  Another significant improvement has been image guidance in planning and delivery of treatments.  Radiographic, CT, MR and US imaging is contributing to precise and conformal delivery.  An extensive review of the above advances will be presented.

2C03-近距离治疗：LDR/HDR、剂量学、影像应用及新进展

Bhudatt R. Paliwal, PhD

Human Oncology & Medical Physics

University of Wisconsin

Madison, WI  53792

在过去的十年中，近距离治疗经历了重大的变革。常规治疗的剂量学原则和放射源规格发生了变化，治疗使用了遥控后装半自动治疗技术，在很多应用中，低剂量率（LDR）治疗已经被高剂量率（HDR）治疗所取代。治疗计划和实施采用了图像引导技术，X线照相、CT、MR和US影像的使用提高了治疗的精确度和适形度。本讲将全面回顾这些进展。