iarjcrIARJCRIARJCR2789-606410.47310/iarjcr.2025.v05i01.003Ultrasound to PET Scans: How Much Do People Know About Medical Imaging?Background:  Medical  imaging-spanning  ultrasounds, X-rays, CT, MRI and PET scans-is a cornerstone of modern healthcare, enabling accurate diagnosis and monitoring. However, public understanding of these modalities remains limited, often clouded by misconceptions, especially in low-resource and rural settings. Materials and Methods: A descriptive cross-sectional study was conducted among 400 adults in Shimla from October to December 2024. A pre-validated questionnaire assessed participants' knowledge of imaging technologies through 20 multiple-choice questions. Data were analyzed using SPSS v26 and knowledge levels were categorized as Very Good, Good, Fair, or Poor. Results: Of the respondents, 39.5% demonstrated Very Good knowledge and 40.5% showed Good knowledge, while 15.3% had Fair and 4.8% Poor knowledge. High awareness was noted for ultrasound in pregnancy (82.0%) and X-ray use for fractures (82.3%). However, only 66.8% recognized PET scans for brain function and 68.5% understood MRI’s safety in pregnancy. Rural residents and those with lower education levels showed more significant knowledge gaps. Conclusion: While overall awareness of common imaging modalities is encouraging, critical gaps persist regarding advanced imaging techniques, safety and procedural understanding. Addressing these through targeted, culturally relevant educational efforts and better provider-patient communication is vital for informed consent and improved diagnostic engagement.