Guia técnico para controle de qualidade em monitores de exibição primários e salas de laudo médico

Abstract

Several factors can compromise image quality on primary radiology monitors, such as contrast, noise, luminance, and distortions, directly influencing diagnostic accuracy. In Brazil, despite the legal obligation established by RDC No. 611/2022 and ANVISA Normative Instructions No. 90, 92, 93, and 97/2021, there is currently no detailed technical protocol to guide the practical execution of quality control tests on primary display monitors and medical reporting rooms. In this context, this dissertation aimed to develop, validate, and make available a technical guide in Portuguese to standardize such procedures. The study was structured in four stages: (I) survey and comparative analysis of national and international normative documents applicable to the QC of diagnostic monitors; (II) development of an operational guide containing mandatory tests, recommended tests, and step-by-step instructions; (III) validation of the material by medical physicists working in radiodiagnosis; and (IV) final review of the guide based on the suggestions collected. The results demonstrated a high rate of acceptability, with 75% of participants recommending the use of the guide and highlighting its clarity, applicability, and practical relevance. More complex aspects, such as interoperability between modalities and standardization of the use of images in DICOM format, were explored in greater depth in this dissertation, given the need for more extensive critical discussion. The final product consists of a field-executable guide, with the potential to be adopted by different services as an institutional QC tool. In conclusion, this work represents a significant advance by filling a national regulatory gap, providing a practical and scientifically sound tool to support medical physicists and radiology services, contributing to methodological standardization, reduction of variability, and greater diagnostic reliability.