Caballero Perea Begoña, Villegas Antonio Cabrera, Rodríguez José Miguel Delgado, Velloso María José García, Vicente Ana María García, Cabrerizo Carlos Huerga, López Rosa Morera, Romasanta Luis Alberto Pérez, Beltrán Moisés Sáez
Department of Radiation Oncology, Hospital Universitario de Fuenlabrada, Spain.
Department of Nuclear Medicine, CIBIR, Logroño, Spain.
Rep Pract Oncol Radiother. 2012 Nov 17;17(6):298-318. doi: 10.1016/j.rpor.2012.10.001. eCollection 2012.
Positron emission tomography (PET) with (18)F-fluorodeoxyglucose (FDG) is a valuable tool for diagnosing and staging malignant lesions. The fusion of PET and computed tomography (CT) yields images that contain both metabolic and morphological information, which, taken together, have improved the diagnostic precision of PET in oncology. The main imaging modality for planning radiotherapy treatment is CT. However, PET-CT is an emerging modality for use in planning treatments because it allows for more accurate treatment volume definition. The use of PET-CT for treatment planning is highly complex, and protocols and standards for its use are still being developed. It seems probable that PET-CT will eventually replace current CT-based planning methods, but this will require a full understanding of the relevant technical aspects of PET-CT planning. The aim of the present document is to review these technical aspects and to provide recommendations for clinical use of this imaging modality in the radiotherapy planning process.
正电子发射断层扫描（PET）联合（18）F-氟脱氧葡萄糖（FDG）是诊断恶性病变及进行分期的重要工具。PET与计算机断层扫描（CT）融合产生的图像包含代谢和形态学信息，两者结合提高了PET在肿瘤学中的诊断精度。用于放疗治疗计划的主要成像方式是CT。然而，PET-CT作为一种新兴的用于治疗计划的方式，因其能更准确地定义治疗体积。将PET-CT用于治疗计划非常复杂，其使用的方案和标准仍在制定中。PET-CT最终有可能取代当前基于CT的计划方法，但这需要全面了解PET-CT计划的相关技术方面。本文的目的是回顾这些技术方面，并为在放疗计划过程中临床使用这种成像方式提供建议。
