Hospital Angeles Lomas Positron Emission Tomography-Computed TomographyLomas PET-CT) scan is a nuclear medicine test that combines metabolic and anatomical imaging in a single exam to provide a comprehensive view of the body. By observing how a radiopharmaceutical is distributed in the tissues and correlating that activity with a CT scan, key information is obtained to locate lesions, understand their biological behavior, and plan treatment with greater precision. This integration reduces diagnostic uncertainties, facilitates timely decisions, and allows for objective monitoring of the therapeutic response, always in close communication with the treating physician.

Prior to the study, preparation is guided by healthcare staff to optimize results. Depending on the clinical indication, fasting time is adjusted and glucose control is checked, especially in people with diabetes. Subsequently, a tracer is administered intravenously to assess cellular metabolism; after a brief rest period, functional images are acquired along with a low-dose CT scan that precisely locates the findings. The procedure is comfortable and painless; throughout the process, the team explains each step, verifies relevant medical history, and offers recommendations for after the study, such as maintaining adequate hydration unless otherwise indicated.

The primary use of PET-CT is in oncology, where it aids in disease staging, the detection of metastases, the assessment of treatment response, and the differentiation between active tissue and residual changes. It is also useful in cases of persistent infection or inflammation, in the evaluation of myocardial viability, and in neurological disorders where it is necessary to examine brain metabolism.

Patient safety is a priority: we apply dose optimization principles and quality control protocols. If the physician deems it appropriate to use contrast media for the CT portion, we assess the patient’s history of allergies and renal function and provide a transparent explanation of the benefits and risks.