CT Imaging Department

The CT Departments of YGEIA Diagnostic Centers (Agrinio – Zakynthos – Lefkada) are equipped with state-of-the-art multidetector CT scanners featuring iterative and AI-assisted reconstruction algorithms, enabling high-resolution imaging with minimized radiation exposure (ALARA principle). Protocols are tailored to each clinical indication (contrast phases, ≤1 mm slice thickness, MPR/MIP/VR techniques), ensuring diagnostic accuracy, oncologic staging, and treatment planning.

Oncology: Staging, Restaging & Follow-up
Computed Tomography is a cornerstone in oncologic imaging, offering:
  • TNM staging: full-body thorax–abdomen–pelvis scans (CT CAP), targeted multiphasic protocols (e.g. liver arterial/portal/venous/delayed, pancreas, GU tract, gynecologic imaging).
  • Lymph node mapping and detection of distant metastases (lungs, liver, bones, adrenal glands, peritoneum).
  • Response assessment based on RECIST 1.1 criteria, with standardized target lesion measurement and reproducible follow-up imaging.
  • Pre-therapeutic planning: surgical evaluation, CT simulation for radiation therapy, and restaging post-chemotherapy, immunotherapy, or radiotherapy.
  • Structured follow-up protocols, optionally in combination with PET/CT when indicated.

Low-Dose Chest CT – Screening for Lung Cancer

Low-Dose CT (LDCT) of the chest is the recommended screening modality for individuals at high risk for lung cancer (age 50–80 with ≥20 pack-years, current or former smokers within the last 15 years). It has been proven to reduce lung cancer mortality and is endorsed by international bodies such as the USPSTF and European medical societies.
Radiation dose:Typical LDCT delivers ~1–1.5 mSv, significantly lower than standard chest CT (~6 mSv) and only slightly higher than a plain chest X-ray (~0.1 mSv), remaining suitable for annual use in screening settings. Dose may vary depending on patient habitus and scanner parameters.
Note: LDCT does not replace chest X-ray for general clinical use. It is a targeted screening tool for high-risk populations with structured reporting systems (e.g. Lung-RADS) and organized follow-up.

Examinations

Examinations Offered

Neck (soft tissue & cervical spine)

01

Chest (including LDCT for lung cancer screening)

02

Abdomen & pelvis (with multiphasic liver/pancreas/kidney imaging where appropriate)

03

Musculoskeletal system

04

CT angiography (brain, neck, aorta, iliac & peripheral arteries)

05

Brain

06

Head & facial bones (sinuses, orbits)

07

Head & facial bones (sinuses, orbits)

08

Appointments & Contact

For information on appointment availability, scan preparation, pricing, or inclusion in LDCT lung cancer screening programs, please contact the YGEIA Group Diagnostic Centers in Agrinio, Zakynthos, or Lefkada. Our medical and administrative staff are available to assist you with professional and accurate guidance.

References (available upon request)

Radiation doses

RadiologyInfo / ACR-RSNA: LDCT (~1.5 mSv), chest CT (~6.1 mSv), chest X-ray (~0.1 mSv)

Lung cancer screening

USPSTF 2021 guidelines; ERS/ESR European recommendations

Response evaluation

RECIST 1.1 criteria (Response Evaluation Criteria in Solid Tumors)