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Integrated PET/CT in the staging of nonsmall cell lung cancer: technical aspects and clinical integration

¹ Depts of Radiology, and ² Nuclear Medicine, University Hospitals Gasthuisberg, Leuven, Belgium.

CORRESPONDENCE: W. De Wever, Dept of Radiology, University Hospitals Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium. Fax: 31 16434765. E-mail: walter.dewever{at}uzleuven.be

Keywords: Computed tomography, imaging, integrated positron emission tomography/computed tomography, lung cancer, positron emission tomography, staging

Received: March 6, 2008
Accepted July 1, 2008

Lung cancer is a common disease and is a leading cause of death in many countries. The management of lung cancer is directed by an optimal staging of the tumour. Integrated positron emission tomography (PET)/computed tomography (CT) is an anatomo-metabolic imaging modality that has recently been introduced to clinical practice and combines two different techniques: CT, which provides very detailed anatomic information; and PET, which provides metabolic information. One of the advantages of PET/CT is the improved image interpretation. This improvement can result in the detection of lesions initially not seen on CT or PET, a more precise location of lesions, a better characterisation of the lesion as benign or malignant and a better differentiation between tumour and surrounding structures. Initial studies demonstrate better results for PET/CT in the staging of lung cancer in comparison with PET alone, CT alone or visual correlation of PET and CT. The purpose of the present article is to discuss technical aspects of integrated PET/CT and to attempt to outline how to introduce integrated PET/CT in clinical and daily practice.