CPT® Code 0697T

Quantitative magnetic resonance for analysis of tissue composition (eg, fat, iron, water content), including multiparametric data acquisition, data preparation and transmission, interpretation and report, obtained without diagnostic MRI examination of the same anatomy (eg, organ, gland, tissue, target structure) during the same session; multiple organs

Quantitative magnetic resonance (QMR) is a sophisticated imaging technique designed for the analysis of tissue composition, including fat, iron, water content, and other components within the body. This method offers enhanced precision compared to traditional studies, such as dual-energy X-ray absorptiometry (DXA), making it a valuable tool in various clinical settings. QMR is particularly useful for detecting subtle changes in body composition, which can be critical for evaluating the effectiveness of medical treatments, nutritional interventions, and monitoring the progression of chronic diseases. Additionally, it aids in assessing growth patterns or changes in specific target areas of the body.

The QMR process leverages the unique nuclear magnetic resonance properties of hydrogen atoms found in different types of tissue. By utilizing these properties, QMR can differentiate between signals originating from fat, lean tissue, bone, and water. During the procedure, the patient is positioned on a rolling bed that moves into a specialized square bore chamber, which is enveloped by a resistive electromagnet. This magnet creates a static, low-intensity magnetic field that is essential for the imaging process. Radio frequency pulses are then directed at the target tissue, stimulating the hydrogen nuclei within the magnetic field. As these nuclei relax, they emit electromagnetic signals that reflect their surrounding environment. These signals are captured and processed through advanced algorithms to generate parametric mapping of the tissue composition.

Ultimately, the data obtained from the QMR procedure is meticulously reviewed and interpreted, often in comparison with previous studies, to ensure accuracy and relevance. A comprehensive report is then generated, detailing the findings of the analysis. It is important to note that CPT® Code 0697T specifically refers to QMR for multiple organs, distinguishing it from other codes that may apply to single organ analyses.