NCT06494800

Added Value of PET/CT in Lung Cancer

Added Value of 18F-FDG PET/CT in Lung Cancer

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 30 (estimated)
• Sponsor: Sohag University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Assess the value of PET/CT in the diagnosis, staging, response evaluation, and relapse monitoring of lung cancer.

Detailed description

Lung cancer is a leading cause of cancer-related mortality worldwide, accounted for 1.80 million deaths in 2020.(1)Egyptian statistics showed that lung cancer in men represents 8.2% of among all cancers of men according to the Egyptian National Cancer Program in 2014 (3).Epidemiological data indicate that the main risk factor for the development of lung cancer is cigarette smoking.(4)Lung cancer is histologically divided into: Non-small-cell lung cancer (NSCLC), which accounts for 85% of cases and Small cell lung cancer (SCLC).(5)Due to absence of screening, most patients with lung cancer are not diagnosed until later stages, when the prognosis is poor.(6)Radiologic manifestations of bronchogenic carcinoma include obstructive pneumonitis or atelectasis, lung nodule or mass, apical mass, cavitated mass, or nodule or mass associated with lymphadenopathy(6)Conventional chest radiography, computed tomography (CT), magnetic resonance imaging, radionuclide scintigraphy, and positron emission tomography (PET) all have been used for NSCLC staging.(7)PET/CT is a well-established radiological modality with high diagnostic accuracy in metastases detection compared to usual CT. Also, it has been reported that up to 10% of patients with bronchogenic carcinoma are found to have metastases on PET/CT that were not detected on CT with subsequent different patients' staging. The high accuracy of PET/CT in tumor staging makes it important for the treatment strategy of either surgical treatment, radiotherapy, or chemotherapy. Also, it becomes essential during the follow-up to detect recurrence. PET/CT shows a higher ability to evaluate the early response to the treatment as chemotherapy by its ability to detect the metabolic response even before the size change.(8)The prognosis of lung tumors depends on early and accurate staging as well as the histopathological type of the primary tumor, with the squamous cell carcinoma type regarded to be of a worse prognosis than that of adenocarcinoma.(9)

Conditions

• Lung Cancer

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	True cut needle biobsy	The biobsy procedure done at the radiology department and the cores are examined by the pathology department, the patient lie prone, supine or in lateral decubitus according to the location of the lesion. A thoracic CT scan was performed first to evaluate the needle pathway and distance from the puncture site to the lesion. The needle pathway was selected to avoid bone, visible vessels, bullae, and fissures. The puncture site was chosen by the CT gantry laser lights and landmarks using a homemade radiopaque grid on the patient's skin. Local anaesthesia was induced with 5 mL of 2% lidocaine. An 18-G coaxial needle was used to puncture the lung, and a repeat CT scan was performed to evaluate the site of the needle. When the needle tip reached the lesion, the specimen was obtained by pressing the trigger of the needle. The specimen was reviewed by the pathologist.The specimen was placed in 10% formaldehyde for pathological examination.

Timeline

• Start date: 2024-07-15
• Primary completion: 2025-07-15
• Completion: 2025-12-01
• First posted: 2024-07-10
• Last updated: 2024-07-10