Interpretation of X-rays, CT and MRI

What differs between the methods

Radiography uses X-rays and may give useful information about bones, lungs and other structures depending on the area. CT also uses X-rays but creates multiple slices and reconstructions that allow more detailed examination of organs, bones and blood vessels. The protocol is chosen for a particular question.

MRI uses a magnetic field and radio waves, without ionizing radiation. It is especially useful for many soft tissues and nerve structures. However, the most suitable method depends on the problem: MRI is not automatically better than CT for every disease or emergency.

Why the complete images are needed

A genuine review requires the original materials, usually in DICOM format, which is the electronic standard of medical imaging. A photograph of the film or of a single slice on a phone may lose detail and does not represent the whole examination.

Bring the CD, the electronic material or the secure access given by the center, together with the report. Dates, the area examined and the use of contrast should be clear. If the materials are incomplete, the specialist should explain the limitation before drawing conclusions.

What the specialist looks for

First it is determined whether the technique answers the clinical question. A CT done for one purpose may lack the contrast phases or the area needed for another problem. Movement during the examination, implants and other factors may create artifacts, that is, distortions that make reading difficult.

The findings, location, dimensions and relationships to surrounding structures are then examined. If earlier examinations exist, change over time is assessed. The report should distinguish a certain finding from diagnostic possibilities and from what cannot yet be characterized.

How the words in a report are understood

Expressions such as “lesion”, “nodule” or “mass” describe a change and do not in themselves imply cancer. “Indeterminate” means the examination has not given sufficient characterization. Comparison, follow-up, another method or a sample may be recommended, depending on the risk.

A degenerative change in the spine may be significant or incidental; it must match the symptoms and the neurological examination. Likewise, a benign finding may not need repeated checks. The aim is to clarify the clinical significance and the next step.

Contrast and further examinations

Contrast may help assess vessels and characterize some lesions. It is not necessary for every CT or MRI and does not correct all the limitations of an examination. If a new examination is recommended, the doctor explains what additional information it is expected to give.

For it to be performed, possible pregnancy, kidney disease, previous reactions to contrast and implanted devices must be declared. An implant does not automatically rule out MRI; the safety conditions are verified for the specific device by the center where it will be done. Do not repeat examinations without a defined reason.

Frequently asked questions

Can you interpret a CT or MRI from another center? Yes, when you bring the complete material in electronic format and the report. Interpretation is linked to the symptoms and the clinical examination. X-ray, CT and MRI are not performed at the clinic; when new imaging is needed, you are directed to the appropriate service.

Why is a phone photo of the film not enough? A photograph loses detail and shows only one slice from an examination that may contain hundreds of images. The specialist needs the whole original series, usually in DICOM format, to scroll through the slices and compare with older examinations.

What is DICOM? It is the international electronic standard for storing and exchanging medical images. The center where the examination was done usually provides it on a CD or with secure online access. Ask for it together with the final report.

What does it mean when the report says “nodule” or “lesion”? These are descriptive terms for a change seen on the image and do not imply cancer. Many nodules and lesions are benign or incidental. Size, appearance and change over time matter; the doctor clarifies whether follow-up or another examination is needed.

Is MRI better than CT? Not in every situation. MRI has an advantage for many soft tissues and nerve structures and uses no ionizing radiation. CT is often faster and more suitable in emergencies, for bones and for some organs. The method is chosen according to the clinical question.

Does an implant prevent me from having an MRI? Not automatically. Many implants are MRI-safe, but conditions are verified for the specific device, such as a pacemaker or prostheses, by the center where it will be done. Bring the implant card and inform them before booking.

What you should take from the consultation

Ask for answers to the key questions: what the image explains, what remains unclear, whether action is needed and when. A follow-up recommendation should have a defined purpose and time frame. A normal result does not exclude every disease when symptoms persist or have changed.

Care at Tirana Polyclinic: We offer specialist interpretation of X-rays, CT and MRI performed at other centers, linked to the relevant consultation. X-ray, CT and MRI are not performed at the clinic. When new imaging is needed, the patient is directed to the appropriate service.