Tests photon counting CT scans to help check for lung cancer
Tests whether detailed spectral CT images help assess people suspected of having lung cancer.
Plain-language title generated from the registry record
Registry title: Benefit of Spectral Information in Patients Suspected for Lung Cancer
Key facts
- Where
- Herlev, DenmarkSee the site
Where in Denmark
- Copenhagen University Hospital HerlevHerlev, DenmarkTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Copenhagen University Hospital at Herlev
- Trial code
- NCT06440616
- Record updated
- 20 March 2026
- Original description
Purpose The aim of the study is to investigate the utilization of photon counting CT (PCCT) and the spectral information provided to determine the impact of spectral information on follow-up examinations.Read full original descriptionShow less
Benefit of Spectral Information Provided by Photon Counting CT in Patients Suspected for Lung Cancer
Purpose The aim of the study is to investigate the utilization of photon counting CT (PCCT) and the spectral information provided to determine the impact of spectral information on follow-up examinations.
As secondary aims we will compare conventional CT, CT + 18Flouro-deoxy-glucose (18F-FDG) positron emission tomography (PET) and PCCT + 18F-FDG PET for the tumor-node-metastasis (TNM) staging of lung cancer patients.
PCCT with and without spectral information to assess the need for additional work-up,TNM classification, and sensitivity/specificity for malignant lesions. Patients will be randomized for reading with or without spectral information available within a clinical setting. The clinical readings are performed as a structured reports of all significant findings. Including both malignant and benign findings. Furthermore, in case additional follow-up/work-up is needed based on the guidelines on incidental findings by the American College of Radiology (ACR), this will be reported as well. If lesions suspicious of pulmonary malignancy is present, a provisional TNM classification is provided based on the scan findings.
After 3 months, the patient record is reviewed where additional examinations that can be attributed to the PCCT scan are recorded. The financial impact is calculated by a health economist based on the findings. PET/CT, conventional CT and PCCT combined with PET will be assessed retrospectively for comparison. Endpoints are number of supplementary examinations and cost savings. Sensitivity and specificity for any malignant finding. The T, N and M stages are assessed separately as diagnostic measures by the McNemar's test with a reference standard from the Danish Lung cancer register. The number of malignant lesions will be determined by reviewing the patient records incl. pathology assessment if available 12 months after inclusion of the last patient.
Inclusion: Patients suspected of lung cancer refered to Copenhagen University Hospital as per the guidelines from the danish national health authorities from either the general practitioner or from the department of pulmonology; Informed consent.
Exclusion: Comorbidities that exclude the patient from receiving treatment; Already verified lung cancer from another institution; Known extrapulmonary malignancy; Patients who cannot tolerate intravenous iodinated contrast; Lack of reference standard in the form of either histology or follow-up; Technical limitations within the scans/reconstructions; other; Pr. the 29th of September included 433 participants.