Department of Radiology
The Department of Radiology at Lahey brings together experienced physicians and imaging specialists dedicated to accurate diagnostic and medical imaging, innovative research and comprehensive education and training.
Computed Tomography (CT) Scan
Detailed imaging to help diagnose and guide treatment
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Advanced CT Scan Imaging for Clear Answers
At Lahey Clinic, computed tomography (CT) scans are performed using advanced scanners designed to improve image quality while reducing radiation exposure. Results are interpreted by board-certified radiologists to support accurate diagnosis and next steps in care.
CT imaging is available for both outpatient and inpatient needs.
What Is a CT Scan?
A CT scan is a quick and painless imaging test that helps doctors see inside your body in great detail. It uses X-rays and advanced computer technology to create clear, cross-sectional images of your organs, bones, and blood vessels. This allows your care team to better understand what’s happening and make accurate diagnoses.
CT scans are commonly used to evaluate a wide range of conditions. They are especially helpful in emergencies, where speed is critical, such as checking for injuries, internal bleeding, or stroke. They are also used to look at the lungs, abdomen, and other organs, and to detect infections, tumors, or other concerns. In some cases, a CT scan can focus specifically on blood vessels (called CT angiography) or the heart to provide even more detailed information.
One of the main benefits of a CT scan is how fast it is—most scans take only a few minutes. The procedure is non-invasive, and you will simply lie comfortably on a table while the scanner moves around you. Our team takes care to use the lowest radiation dose necessary while still producing high-quality images.
CT scans play an important role in helping your doctors diagnose conditions early, guide treatment decisions, and monitor your health over time.
Why You Might Need a CT Scan
A CT scan may be recommended to:
- Evaluate abdominal or pelvic pain
- Detect infection or inflammation
- Assess injury after trauma
- Identify tumors or abnormal growths
- Guide biopsy or minimally invasive procedures
- Monitor response to treatment
CT imaging is commonly used to evaluate conditions affecting the brain, chest, abdomen, pelvis, and spine.
Specialized CT Capabilities
CT imaging may be used in coordination with other specialty services, including:
- Heart & Vascular for cardiac and vascular imaging
- Cancer Care to help detect or monitor tumors
- Stroke Care to evaluate suspected stroke
- Lung and Respiratory Care for chest imaging
Advanced CT technology may include dose reduction software, high-resolution scanners and imaging options designed for patients of different body types.
More About CT Scan
What To Expect During Your CT Scan
A CT scan is painless. You will lie on a table that moves slowly through a circular scanner.
The scan itself usually takes only a few minutes. If contrast is used, it may be given through an IV or by mouth before the exam.
You may be asked to hold your breath briefly to ensure clear images.
Safety & Radiation Exposure
CT scans use radiation. The amount is carefully controlled and kept as low as possible while still providing clear images.
Your care team will review your medical history and answer any questions before the test.
If you are pregnant or think you may be pregnant, let the team know before the scan.
Your Scan Results & Records
You will be told when and how to expect your imaging results. Many results will appear in your Patient Portal when available.
To find instructions on how to obtain copies of your exam images visit Imaging Test Results and Records.
