Abstract
Background: Lung cancer is one of leading death worldwide, it begins when cells in the lung grow out of control and formed mass or nodules which classified in two known major forms, non-small cell and small cell cancer. The accurate assessment of the disease extent is important in management approach and Computed tomography imaging in nodal staging remains the important tool for lung cancer diagnosis, particularly when assessing intra and extra thoracic spread of lung cancer.
 Objective: This is a quantitative cross-sectional study conducted in Sudanese lung cancer patients in period from November 2019 to February 2020 in Khartoum state hospital. The main aim of the study was to evaluate staging of lung cancer using computed tomography technology.
 Method: A group of 100 participants patients were selected randomly in different gender and in age group between (30-80) years old. The inclusion limited to patients diagnosed with lung cancer by computed tomography techniques and the normal cases and other abnormalities was being excluded. The data were collected using a special collection sheet and the data statistical analyzed using SPSS program.
 Result: The outcomes of this study showed that patients in age group between (60-70) years old do not have lung cancer in the first stage, while lung cancer in the second stage occurred in 10 patients only with 10 % percentage. The third stage is the most common type with a high incidence rate which occurred in 90 patients with 90 %. Percent.
 Conclusion: Advance imaging with CT scan techniques play a critical role in the diagnosis and management of lung cancer patients adding to accurately describing the radiological extent of the disease. Moreover, the important to understand the principles of staging description and their impact on treatment decisions.
Highlights
Radiologic conventional chest x-ray, computed tomography (CT), magnetic resonance (MR) and positron emission tomography (PET) are all imaging techniques used for the detection staging and follow-up of lung cancer
Computed tomography scan for the chest is the cornerstone of lung cancer imaging and the success of CT is related to the fact that very detailed imaging information of the localization and the extent of the tumor the presence of enlarged lymph nodes and the presence of metastatic disease can be provided
Lung cancers primary tumor shows a wide spectrum of imaging appearances, the primary lung cancer in CT scan mages commonly have central location and masses of mediastinial structures have peripheral situation with irregular margin, they can be uniformly solid or with central necrosis and centrally situated tumors are more likely to be of squamous histology .Tumors with mixed density or with ground grass nodules and consolidation which are referred to as adenocarcinoma can be seen clearly in CT scan imaging
Summary
The advantages of multi-detector CT scanners (MDCT) have revolutionized in the diagnostic approach to the lung cancer This due to an increased temporal and spatial resolution, rabid Data acquisition that scanning of the entire lung can be performed within a single breath-hold, there is a better contrast material administration possible the continuous acquisition of thin slices allows the improvement of the image quality of multiplanar reconstruction (MPR) images [1]. The accurate assessment of the disease extent is important in management approach and Computed tomography imaging in nodal staging remains the important tool for lung cancer diagnosis, when assessing intra and extra thoracic spread of lung cancer. Conclusion: Advance imaging with CT scan techniques play a critical role in the diagnosis and management of lung cancer patients adding to accurately describing the radiological extent of the disease. The important to understand the principles of staging description and their impact on treatment decisions
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