CPT® Code 77295

A 3-dimensional (3-D) radiotherapy plan is a sophisticated approach utilized during the treatment planning phase for radiation therapy aimed at malignant neoplasms. This method involves the creation of a computer-generated 3-D reconstruction of both the tumor and the critical structures that are in proximity to it. The process begins with the acquisition of direct imaging data, typically through computed tomography (CT) scans and/or magnetic resonance imaging (MRI), which are essential for generating accurate 3-D images. These images are crucial as they provide a detailed visualization of the tumor's location and its relationship to surrounding healthy tissues and vital organs.

In conjunction with the 3-D reconstruction, dose-volume histograms (DVH) are employed. DVH is a graphical representation that illustrates the distribution of radiation doses across the 3-D model, allowing healthcare professionals to analyze the frequency distribution of average dose values. This analysis is pivotal in determining the optimal target dose that will effectively eradicate the tumor while minimizing exposure to critical structures and healthy tissue. The integration of the 3-D reconstruction with DVH enables healthcare providers to tailor the radiation treatment plan to the individual patient's unique anatomical features, ensuring a more precise and effective treatment strategy.